ITU Operational Bulletin		
No. 596 – 15.V.1995			
(Information received by 8 May 1995)			
	
Published by the International Telecommunication Union (ITU)
Place des Nations      CH-1211 Genève 20 (Switzerland)

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Dates of publication of the next Operational Bulletins
No. 597	1.VI.1995
No. 598	15.VI.1995
No. 599	1.VII.1995		Including information received by:
24.V.1995
8.VI.1995
26.VI.1995	

596-E /
Contents

General Information
(TSB)	Approval of ITU-T Recommendations
(TSB)	Expanded International Dialling Time “T” (ITU-T Recommendations E.164 and E.165)
(BR)	Ship station selective call numbers:  Republic of Panama, Republic of the Philippines
(BR)	Maritime Mobile Service:  France (France Telecom)
(TSB)	Assignment of Signalling Area/Network Codes (SANC) (ITU-T Recommendation Q.708):  Indonesia (Republic of)
(TSB)	Telephone Service:  Numbering Plan – NANP (North American Numbering Plan Administration), Egypt (ARENTO), Grenada (GRENTEL), Jamaica (TOJ), Japan, Seychelles (Cable and Wireless (Seychelles) Ltd.), Singapore (TAS), Syria (STE)
(TSB)	Telex Service:  Andorra, Latvia (SIA “Lattelekom”)
(TSB)	Data Transmission Service (ITU-T Recommendation X.121)
	–	International numbering plan for public data networks:
United States (MCI Telecommunications Corporation)
(TSB)	Service Restrictions
Amendments to Service Documents
(BR)	List of Coast Stations (List IV)
(BR)	List of Ship Stations (List V)
(TSB)	International Signalling Point Codes (ISPC) for signalling system No. 7
(TSB)	List of Data Network Identification Codes (DNIC)
(TSB)	List of Telex Destination Codes (TDC) and Telex Network Identification Codes (TNIC)
(TSB)	List of Names of Administration Management Domains (ADMD)
(TSB)	Recapitulatory List of issuer identifier numbers for the international telecommunication charge card
(TSB)	TA Table – Transferred Account Telegraph and Telematic Service 

_______________
Subjects preceded by the letters (BR) are dealt with by the Radiocommunication Bureau (BR),
	contact:	TF +41 22 730 5217	FAX +41 22 730 5785
Subjects preceded by the letters (TSB) are dealt with by the Telecommunication Standardization Bureau (TSB),
	contact:	TF +41 22 730 5212	FAX +41 22 730 5853

GENERAL  INFORMATION

ITU OB    596-E /
Approval of ITU-T Recommendations*
A.	In accordance with Resolution No. 1, Section 8, of the WTSC (Helsinki, 1993), the following Recommendations were approved:
	–	ITU-T Recommendation X.36: Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for public data networks providing frame relay data transmission service by dedicated circuit
	–	ITU-T Recommendation Recommendation X.37: Encapsulation in X.25 packets of various protocols including frame relay
	–	ITU-T Recommendation X.76: Network-to-network interface between public data networks providing the frame relay data transmission service
	–	ITU-T Recommendation X.115: Definition of address translation capability in public data networks
	–	ITU-T Recommendation X.144: User information transfer performance parameters for data networks providing international frame relay PVC service
	–	ITU-T Recommendation X.161: Definition of customer network management services for public data networks
	–	ITU-T Recommendation X.162: Definition of management information for customer network management service for public data networks to be used with the CNMc interface
	–	ITU-T Recommendation X.163: Definition of management information for customer network management service for public data networks to be used with the CNMe interface
	–	Amendment 1 to ITU-T Recommendation X.213: Information technology – Open Systems Interconnection – Network service definitions – Amendment 1: Addition of group network addressing and connectionless-mode multicast services
	–	ITU-T Recommendation X.217: Information technology – Open Systems Interconnection – Service definition for the Association Control Service Element
	–	ITU-T Recommendation X.222: Use of X.25 LAPB-compatible data link procedures to provide the OSI connection-mode data link service
	–	ITU-T Recommendation X.227: Information technology – Open Systems Interconnection – Connection-oriented protocol for the Association Control Service Element: Protocol specification
	–	Amendment 1 to ITU-T Recommendation X.233: Information technology – Protocol for providing the OSI connectionless-mode network service: Protocol specification – Amendment 1: Multicast extension
	–	ITU-T Recommendation X.235: Information technology – Open Systems Interconnection – Connectionless Session protocol: Protocol specification
	–	ITU-T Recommendation X.236: Information technology – Open Systems Interconnection – Connectionless Presentation protocol: Protocol specification

	–	ITU-T Recommendation X.237: Information technology – Open Systems Interconnection – Connectionless protocol for the Association Control Service Element: Protocol specification
	–	ITU-T Recommendation X.245: Information technology – Open Systems Interconnection – Connection-oriented Session protocol: Protocol Implementation Conformance Statement (PICS) proforma
	–	ITU-T Recommendation X.255: Information technology – Open Systems Interconnection – Connectionless Session protocol: Protocol Implementation Conformance Statement (PICS) proforma
	–	ITU-T Recommendation X.256: Information technology – Open Systems Interconnection – Connectionless Presentation protocol: Protocol Implementation Conformance Statement (PICS) proforma
	–	ITU-T Recommendation X.257: Information technology – Open Systems Interconnection – Connectionless protocol for the Association Control Service Element: Protocol implementation conformance statement (PICS) proforma
	–	ITU-T Recommendation X.282: Elements of management information related to the OSI data link layer
	–	ITU-T Recommendation X.290: OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications – General concepts
	–	ITU-T Recommendation X.291: OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications – Abstract test suite specification
	–	ITU-T Recommendation X.293: OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications – Test realization
	–	ITU-T Recommendation X.294: OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications – Requirements on test laboratories and clients for the conformance assessment process
	–	ITU-T Recommendation X.295: OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications – Protocol profile test specification
	–	ITU-T Recommendation X.413: Information technology – Message handling systems (MHS): Message store – Abstract service definition
	–	ITU-T Recommendation X.445: Asynchronous protocol specification – Provision of OSI connection mode network service over the telephone network
	–	ITU-T Recommendation X.460: Information technology – Message Handling Systems (MHS) Management: Model and architecture
	–	Amendment 1 to ITU-T Recommendation X.680: Information technology – Abstract Syntax Notation One (ASN.1) – Specification of basic notation – Amendment 1: Rules of extensibility
	–	Amendment 1 to ITU-T Recommendation X.681: Information technology – Abstract Syntax Notation One (ASN.1) – Information object specification – Amendment 1: Rules of extensibility
	–	ITU-T Recommendation X.691: Information technology – ASN.1 encoding rules: Specification of Packed Encoding Rules (PER)
	–	Amendment 1 to ITU-T Recommendation X.701: Information technology – Open Systems Interconnection – Systems management overview – Amendment 1: Management knowledge management
	–	Technical Corrigendum 2 to ITU-T Recommendation X.701: Information technology – Open Systems Interconnection – Systems management overview – Technical Corrigendum 2

	–	Amendment 1 to ITU-T Recommendation X.730: Information technology – Open Systems Interconnection – Systems management: Object management function – Amendment 1: Implementation Conformance Statement proformas
	–	Technical Corrigendum 1 to ITU-T Recommendation X.731: Information technology – Open Systems Interconnection – Systems management: State management function – Technical Corrigendum 1
	–	Amendment 1 to ITU-T Recommendation X.731: Information technology – Open Systems Interconnection – Systems management: State management function – Amendment 1: Implementation Conformance Statement proformas
	–	Amendment 1 to ITU-T Recommendation X.732: Information technology – Open Systems Interconnection – Systems management: Attributes for representing relationships – Amendment 1: Implementation Conformance Statement proformas
	–	Amendment 1 to ITU-T Recommendation X.733: Information technology – Open Systems Interconnection – Systems management: Alarm reporting function – Amendment 1: Implementation Conformance Statement proformas
	–	Amendment 1 to ITU-T Recommendation X.734: Information technology – Open Systems Interconnection – Systems management: Event report management function – Amendment 1: Implementation Conformance Statement proformas
	–	Amendment 1 to ITU-T Recommendation X.735: Information technology – Open Systems Interconnection – Systems management: Log control function – Amendment 1: Implementation Conformance Statement proformas
	–	Amendment 1 to ITU-T Recommendation X.736: Information technology – Open Systems Interconnection – Systems management: Security alarm reporting function – Amendment 1: Implementation Conformance Statement proformas
	–	Technical Corrigendum 1 to ITU-T Recommendation X.740: Information technology – Open Systems Interconnection – Systems management: Security audit trail function – Technical Corrigendum 1
	–	ITU-T Recommendation X.741: Information technology – Open Systems Interconnection – Systems management: Objects and attributes for access control
	–	ITU-T Recommendation X.742: Information technology – Open Systems Interconnection – Systems management: Usage metering function for accounting purposes
	–	ITU-T Recommendation X.746: Information technology – Open Systems Interconnection – Systems management: Scheduling function
	–	ITU-T Recommendation X.802: Information technology – Lower layers security model
	–	ITU-T Recommendation X.811: Information technology – Open Systems Interconnection – Security frameworks for open systems: Authentication framework
	–	ITU-T Recommendation X.830: Information technology – Open Systems Interconnection – Generic upper layers security: Overview, model and notation
	–	ITU-T Recommendation X.831: Information technology – Open Systems Interconnection – Generic upper layers security: Security Exchange Service Element (SESE) service definition
	–	ITU-T Recommendation X.832: Information technology – Open Systems Interconnection – Generic upper layers security: Security Exchange Service Element (SESE) protocol specification

	–	ITU-T Recommendation X.833: Information technology – Open Systems Interconnection – Generic upper layers security: Protecting transfer syntax specification
	–	ITU-T Recommendation  E.162: Capability for Seven Digit Analysis of International E.164 Numbers at Time T
	–	ITU-T Recommendation E.174: Routing Principles and Guidance for Universal Personal Telecommunication (UPT)
	–	ITU-T Recommendation E.527: Dimensioning at a Circuit Group with Multi-Slot Bearer Services and Overflow Traffic
	–	ITU-T Recommendation E.743: Traffic Measurements for SS No. 7 Dimensioning and Planning
____________
*	See TSB Circulars 146 of 11 April 1995 and 147 of 27 April 1995.

Expanded International
Dialling Time “T”*
Purpose
	We are concerned that the world community may be insufficiently aware and prepared for Time “T”. To this end, the following information is provided.
	The purpose of this information bulletin is to increase the awareness of the world community of ITU-T Recommendations E.164 and E.165 that describe the expansion of international telephone numbers from twelve (12) to a maximum of fifteen (15) digits in length. In order to retain existing International Direct Distance Dialling (IDDD), capability to accommodate these longer numbers is required in all switches, networks and customer provided equipment by Time “T”, that has been designated as “31 December 1996 at 23 hours 59 minutes, Coordinated Universal Time (UTC)”.
	This change in the international numbering plan Recommendation may impact switching equipment, operational support systems, customer premise equipment, correspondence material, billing systems, etc. This change may require financial considerations for hardware and/or software modifications required to accommodate this change at Time “T”. It should be noted that the Time “T” Recommendation places no obligation to expand or modify the national numbering plan beyond its current digit format.
	Administrations, users, providers and manufacturers need to be aware of the information in this bulletin if:
		they provide or users require international direct distance dialling;
		they perform screening, routing, or billing functions for international calls;
		they use a telephone number for correspondence, referencing customers, etc. to or from a country which is considering the expansion of their national numbering plan beyond twelve (12) digits.
Discussion
	ITU-T Recommendation E.164 was developed to facilitate the introduction and expansion of new public services and to expand the capacity of the Public Switched Network Numbering Plan. The new maximum number length is fifteen (15) digits. ITU-T Recommendation E.165 stipulates that the new format will become effective at Time “T”. After Time “T”, countries will have the option of expanding their numbering plans to the full fifteen (15) digits. {Note – Expansion beyond fourteen (14) digits will restrict interworking from Public Switched Packet Data Networks that have not implemented the Numbering Plan Identifier (NPI)}. Any interconnection planned with countries who have expanded their numbering plans will require the expanded capabilities.

	It should be noted that although a country may have no intention of expanding its national numbering plan any time in the foreseeable future, this fact does not mean that the recommendation to recognize a new maximum number length of fifteen (15) digits can be ignored. Especially, if any country indicates its intention to expand beyond the current twelve (12) digit limitation including country code, the ability to process internationally direct dialled calls could be impacted. In October 1993 German representatives announced the intention to expand the German numbering plan beyond the current E.164 maximum length of twelve (12) digits.
	While the fifteen (15) digit number plan alone may not, at first sight, impact the ability to receive and forward calls internationally, when coupled with the existing national dialling plan prefixes and carrier selection, switching equipment and Customer Premises Equipment (CPE) addressing thresholds may be exceeded.
	Additionally, at Time “T” the number of digits, of the E.164 number, to be analysed by the originating country, as specified in ITU-T Recommendation E.164, will change. The national destination code (NDC) increases the potential requirement for digit analysis because it provides for a combination of either a trunk code (TC) and/or a network identification function. Careful consideration should be given to the preparation of national destination code (NDC) assignments. On international calls the digit analysis performed at the originating country need not be more than the country code and:
		four digits of the  national (significant) number N(S)N in the case of a country with a three-digit country code;
		five digits of the N(S)N in the case of a country with a two-digit country code;
		six digits of the N(S)N in the case of a country with a one-digit country code.
	Although the potential for seven-digit analysis exists, it is not required for every call. The terminating country will inform the originating country which of the seven dialled digits of the E.164 number will indicate when seven-digit analysis is required.
	Some administrations will be able to implement the charging arrangements with seven‑digit analysis at the same time as the associated routing. Others may not be able to implement the charging arrangements at the same time, bilateral arrangements should be established between these administrations, if needed.
	Time “T” also impacts numbering plan interworking solutions between public networks using different numbering plans (e.g. calls routed between the public telephone network using an E.164 numbering plan and a public data network using the X.121 numbering plan). Specifically, the numbering plan interworking solutions documented in ITU-T Recommendation E.166, “Numbering Plan interworking in the ISDN Era”, are separated into short-term (prior to Time “T”) and long-term (post Time “T”) solutions. Prior to Time “T” escape codes1) are considered the short-term method for interworking between public networks using different numbering plans. With the advent of Time “T” it is stated that Numbering Plan Identifier/Type of Number (NPI/TON) feature as defined in ITU-T Recommendation Q.931 be used for interworking between different numbering plans in public networks, and that the short-term escape code method be deleted when interworking from the public telephone networks/ISDNs. Based on individual evolution plans, some administrations may have already implemented NPI/TON interworking solutions.
Summary
	As Time “T” approaches, administrations, users, network providers and manufacturers need to be aware of the options and steps that may be taken. The following issues should be clearly understood in determining the appropriate action to be taken to accommodate the changes that may occur at Time “T”:
		Time “T” is when the capability to handle fifteen (15) digit numbering plans should be implemented. This capability refers to the E.164 networks.
		Time “T” is designated as 31 December 1996, 23 hours 59 minutes, Coordinated Universal Time (UTC).

		The existing national numbering plan may continue to use the current format it uses today. Check with the national plan administrator to determine the impacts of Time “T” on the national numbering plan, if any.
		Full dialling plan capabilities must be considered when determining the impacts.
		On international calls the digit analysis, of the E.164 number, performed at the originating country has increased to a maximum of seven digits (including the country code). Some administrations will be able to implement the charging arrangements with seven-digit analysis at the same time as the associated routing. Others may not be able to implement the charging arrangements at the same time, bilateral arrangements should be established between those administrations, if needed.
		Modifications required to accommodate the use of NPI/TON (Numbering Plan Identifier/Type of Number feature as defined in ITU-T Recommendation Q.931) for interworking between different numbering plans in public networks. 
		Note – Based on individual evolution plans, some administrations may have already implemented NPI/TON interworking solutions.
		Modifications to software and hardware which allows International Direct Distance Dialling (IDDD) must be considered. This includes but is not restricted to Customer Premises Equipment (CPE) and customer support systems.
		Administrations and operators should be aware of the necessary expansion of national support systems.
____________
1)	Escape code: “An escape code is an indicator consisting of one or more digits which is defined in a given numbering plan and is used to indicate that the digits that follow are from a specific numbering plan which is different from the given numbering plan.
	For example, escape codes are currently used with the X.121 numbering plan to interwork with E.164 (ISDN) and F.69 (Telex) numbering plans.
	An escape code can be carried forward through the originating network and can be carried across internetwork and international boundaries. Therefore, the digits used for escape codes should be standardized.”
	Reference: ITU-T Recommendation E.160 "Definitions Relating to National and International Numbering Plans”.

References
	Note 1 – The Recommendations below, as well as those referred to in the Bulletin above, are shown as “ITU-T” Recommendations.
	Note 2 – Recommendations referenced in this Information Bulletin are available from the ITU Sales Section (Fax: +41 22 730 5194).
[1]	ITU-T Recommendation F.69 – “Plan for Telex Destination Codes”.
[2]	Draft ITU-T Recommendation E.162 – “Capability for Seven-Digit Analysis of International E.164 Numbers at Time T” (see Annex 2).
[3]	ITU-T Recommendation E.164 – “Numbering Plan for the ISDN Era”.
[4]	ITU-T Recommendation E.165 – “Timetable for Coordinated Implementation of the Full Capability of the Numbering Plan for the ISDN Era” (see Annex 1).
[5]	ITU-T Recommendation E.166 – “Numbering Plan for Interworking in the ISDN Era”.
[6]	ITU-T Recommendation Q.931 – “ISDN User-Network Interface Layer 3 Specification for Basic Call Control”.
[7]	ITU-T Recommendation X.121 – “International Numbering Plan for Public Data Networks”.

Information
	For further information on this subject, in the first instance contact the national or integrated numbering plan administrators.
	Alternately, the Q.5/2 – Numbering Rapporteur Group (of ITU-T Study Group 2) has a number of Time “T” awareness coordinators. At present they are:
A. Gaechter	Bellcore, United States	Fax:	+1 201 740 6860	
S. Isaksen	Televerket, Norway	Fax:	+47 22 20 00 75	
A. Holmes	BT, United Kingdom	Fax:	+44 171 248 1636	
C. Handley	US WEST, United States	Fax:	+1 303 965 2785	
P. Reptis	Telstra, Australia	Fax:	+61 3 670 2562	
A. Sekiguchi	MPT, Japan	Fax:	+81 3 3509 8292	
R. Hurek	Deutsche Telekom, Germany	Fax:	+49 228 181 8976	
Z. Tar	Conseiller, TSB	Fax:	+41 22 730 5853	
____________
*	See TSB Circular 128 of 28 February 1995.
Ship station selective call numbers
	In accordance with Nos. 2143 and 2144 of the Radio Regulations:
a)	the ship station selective call numbers 70900-70999 have been supplied to the Republic of Panama, and
b)	the ship station selective call numbers 70300-70399 have been supplied to the Republic of the Philippines.
Maritime Mobile Service
France
Communication of 20.IV.1995:
	France Telecom announces that as the paneuropean digital radiotelephone system (GSM) is being progressively implemented, the company has discontinued the “public correspondence” service of the Rhine VHF radiotelephone network, via Nancy Radio, Strasbourg Radio and Thionville Radio, as of 28 April 1995.
Numbering of International Signalling Point Codes
Assignment of Signalling Area/Network Codes (SANC)
(ITU-T Recommendation Q.708)
Note from the TSB:
	At the request of the Administration of Indonesia (Republic of), the Director of the TSB has assigned the following signalling area/network codes (SANC) for use in the international part of the signalling system No. 7 network of this country, in accordance with ITU-T Recommendation Q.708:
	Geographical area or signalling network	SANC
	Indonesia (Republic of)	5-021 and 5-022
Telephone Service
NANP – North American Numbering Plan
Communication of 5.V.1995:
	The North American Numbering Plan Administration (NANP) announces that on 1 January 1995, a major change was made to the North American Numbering Plan, which specifies the format of telephone numbers used in the United States, Canada, Bermuda, and fifteen Caribbean nations. Prior to that date, all telephone area codes had a “0” or “1” as a middle digit. Area codes specify the geographic area in which a particular number is located; for example, 202 and 212 specify Washington DC and Manhattan, respectively.

	Six new area codes have been introduced since 1 January 1995, and at least nine more are expected within a year. All of these new area codes have a middle digit of “2” through “9”. The six codes currently in service are 630 (Chicago), 334 (Southern Alabama), 360 (Washington State), 281 (Houston), 520 (Phoenix), and 970 (Colorado).
	Additional scheduled area codes include:

New area code	Location	Dates	
941	Tampa	28.V.1995	
540	Virginia	15.VII .1995	
860	Connecticut	28.VIII.1995	
562	Southern California	2.IX.1995	
423	Tennessee	11.IX.1995	
441	Bermuda	1.X.1995	
954	Miami	7.X.1995	
770	Atlanta	1.XII.1995	
864	South Carolina	3.XII.1995	
847	Suburban Chicago	29.I.1996	
972	Dallas	1.II.1996	
	Several Additional area codes are under discussion.
	Users served by these new area codes have reported that many of their correspondents in foreign countries have had difficulties in completing calls into these new area codes. Although there are several reasons why these calls might be unsuccessful, we suspect that some of the non-North American network operators may be unaware of these new area codes and may be blocking calls to area codes that they do not recognize. The appropriate network changes should be made as soon as possible to ensure proper call completion.

Egypt
Communication of 8.V.1995:
	The National Telecommunication Organization (ARENTO) announces that on 20 April 1995 the area code and subscriber numbers for Mehalla and Samanoud cities have been changed as follows:

Localities	Old area code	New area code	Old numbers 	New numbers	
Mehalla 	43	40	321 000 - 329 999	221 000 - 229 999	
			330 000 - 339 999	230 000 - 239 999	
Samanoud	43	40	460 000 - 462 999	960 000 - 962 999	
	For both cities the area code has been changed from 43 to 40 (40 is the area code of Tanta zone).
	Until 20 July 1995, access will be provided to both old and new numbers; after that date the callers to the old numbers will receive a message informing them of the change.

Grenada
Communication of 8.V.1995:
	Grenada Telecommunications Limited (GRENTEL) announces that on 1 July 1995 the Grenada national numbering plan for its cellular mobile telephone service and paging service will be changed as follows:

Service	Format of old international numbers	Format of new international numbers	
Cellular	+1 809 441 9XXX }	+1 809 408 XXXX	
Paging		+1 809 407 XXXX	

Jamaica*)
Communication of 26.IV.1995:
	Telecommunications of Jamaica Limited (TOJ) announces that as from 1 May 1995, the code 909 will be used in the national network for cellular service.
____________
*)	See also Operational Bulletin No. 589 of 1.II.1995, page 5.

Japan
Communication of 27.IV.1995:
	The Ministry of Posts and Telecommunications of Japan announces the introduction, in the public land mobile telephone service, of new usage of the following numbers:

Company	Numbers	Dates	
Kyushu Cellular Telephone Company	3066 and 4066	1.IV.1995	
Kansai Cellular Telephone Company	3067 and 4067	1.V.1995	
Nippon Idou Tsusin Corporation	3068 and 4068	1.V.1995	
Tu-Ka Cellular Tokai Inc.	3085 and 4085	15.V.1995	
Tu-Ka Phone Kansai Inc.	3086 and 4086	15.IV.1995	

Seychelles
–  Communication of 24.IV.1995:
	Cable and Wireless (Seychelles) Ltd., announces that in the process of implementing a new cellular mobile communications network in Seychelles, which will be operational on 1 October 1995, the following new number range will be introduced for mobile services:
51 XX XX      to      54 XX XX
	In addition, a number of subscribers for fixed services will also be connected to the network with the following number range:
55 XX XX      to      59 XX XX
– Communication of 1.V.1995:
	Cable and Wireless (Seychelles) Ltd. announces that the following telephone numbers have been introduced in the telephone numbering plan of Seychelles, as from 24 April 1995:

Country code	Subscriber numbers	
+248	31X XXX	

Singapore*)
Communication of 19.IV.1995:
New eight-digit numbering plan for mobile telephones and pagers
	The Telecommunication Authority of Singapore (TAS) announces that with effect from 1 September 1995, a new numbering plan will be introduced for mobile communications in Singapore.
	Under this new numbering plan, all numbers for mobile telephones and pagers (including Sky Pagers) will have an additional digit “9” in front of their existing number.
	Examples:

Old number
(seven digits)	New number
(eight digits) as from
1 September 1995	
821 6789	9 821 6789	
417 4560	9 417 4560	

	The existing number structure for fixed line telephones which includes both residential and business direct exchange line (DEL) and direct inward dialling (DID) will remain unchanged.
	The new numbering plan is to ensure sufficient number capacity to meet anticipated growth in customer demands and introduction of new services over the next twenty to twenty-five years.
	TAS will be working closely with Singapore Telecom's mobile communication subsidiaries, Mobile Link and Page Link, to ensure a smooth and successful implementation.
____________
*)	See also Operational Bulletin No. 581 of 1.X.1994.
Syria
Communication of 8.V.1995:
	Syrian Telecommunications Establishment (STE) announces that a second international gateway exchange will be open in Aleppo city in addition to the existing international gateway exchange in Damascus.
	The international signalling point codes (ISPC) for the two international gateway exchanges using signalling system No. 7 are as follows:

Damascus	ISPC  =  4-034-1	
Aleppo	ISPC  =  4-034-2	

Telex Service
Andorra
CTITU B5 of 4.V.1995:
	At the request of Administration of the Principality of Andorra, the Director of the TSB has officially assigned the telex destination code 590 (ITU-T Recommendation F.69) including the telex network identification code (TNIC) “AD” repeat “AD” (ITU-T Recommendation F.68) for Andorra.
	In accordance with Recommendation ITU-T F.69, the three-digit destination code 590 and the two-letter TNIC "AD" will be brought into operation with effect from 1 July 1995. The changeover from the previous code “AND” to “AD” on telex machines of Andorra will begin on 1 July 1995 and be completed by 1 October 1995.
Latvia
Communication of 8.V.1995:
	SIA "Lattelekom", Riga announces that a new international exchange for the telex service will be brought into operation in Latvia on 1 June 1995 and that, as from that date, Lattelekom will be responsible for the telex service from and to Latvia,  taking over from Telecom Finland* which has been working on behalf of Lattelekom before this date. Latvia's telex destination code is 538 and its telex network identification code LV.
	Contact point for traffic routing:
	Mr. Aigars Skulte	Tf.:	+371 724 2478
Fax:	+371 724 2479 / +371 724 2481
	Contact point for accounting:
	Ms Elita Vanka	Tf.:	+371 724 2308
Fax:	+371 724 2300
	Technical contact point in Latvia for the telex service:
	Mr. Lev Datelis	Tf.:	+371 2 331 602
Fax:	+371 2 280 853
	Address: SIA “LATTELEKOM”, Vajnu Street, 30, LV – 1050 RIGA, Latvia.
____________
*	See Operational Bulletin No. 572 of 15.V.1994, page 2 and also Operational Bulletin No. 575 of 1.VII.1994, page 3.

Data Transmission Service
(ITU-T Recommendation X.121)
International numbering plan for public data networks

United States
Communication of 4.V.1995:
	MCI Telecommunications Corporation informed that the name of the networks to which DNICs 310 2, 310 4 and 310 6 were previously assigned have been changed as follows:

DNIC No.	Name of network	
310 2	MCI Public Data Network (ResponseNet)	
310 4	MCI Public Data Network (International Gateway)	
310 6	MCI Public Data Network (XStream)	

	Address of the service provider from which additional information may be requested:
	MCI International
Attn: International Data Marketing
2 International Drive
Rye Brook, New York 10573
UNITED STATES
	Tf:	+1 914 934 6870
Fax:	+1 914 934 6961
X.400 e-mail:	S=intlmsg; A=mci; C=us
Internet e-mail:	intlmsg@mcimail.com

Service Restrictions
Note from the ITU:
	For the list of service restrictions still in force, see the Recapitulatory Table published as an annex to Operational Bulletin (OB) No. 490 of 14.III.1991 and the following subsequent communications:

	OB No.
	515	United Kingdom
520	Libya
524	Syria
527	Zambia
532	Peru
534	United Arab Emirates
538, 565, 574	Finland
545	Venezuela
548, 570	Egypt
555	Jamaica
566	Israel
593	Qatar

AMENDMENTS  TO  SERVICE  DOCUMENTS
Abbreviations used
		ADD	insert	PAR	paragraph
COL	column	REP	replace
LIR	read	SUP	delete
P	page(s)

List of Coast Stations
(List IV)
14th Edition
and Supplements Nos. 1 and 2
(Amendment No. 23)

BUL	Bulgaria
P   708	Note A,	LIR
A	Accounting authority: Navigation Maritime Bulgare, Varna Radio, 1 Primorski Blvd., 9001 Varna (Bulgaria).

J	Japan – as from 1.VII.1995
P   759-760	Notes B, G and H,	LIR
B	Radiotelegrams (per word)
	1.	Land station charge: 0.52 SDR.
	2.	Landline charge:
	a)	Japan: 0.40 SDR.
	b)	Other destinations: the landline charge applicable in the international telegram service.
G	Radiotelex calls
	1.	Land station charge
	a)	Automatic operation: 3.29 SDR/min.
	b)	With operator assistance
i)	First 3 minutes: 9.88 SDR.
ii)	Additional minute: 3.29 SDR.
	c)	Ship-to-ship calls: 6.59 SDR/min.
	2.	Landline charge
	a)	Japan: the landline charge is included in the land station charge.
	b)	Other destinations: the landline charge applicable in the international telex service.
	3.	Cancellation fee: 3.29 SDR per call.
H	Radiotelephone calls (minimum 3 min.)
	1.	Land station charge
	a)	HF
i)	First 3 minutes: 11.45 SDR.
ii)	Additional minute: 3.82 SDR.
	b)	VHF
i)	First 3 minutes: 3.33 SDR.
ii)	Additional minute: 1.11 SDR.
	2.	Landline charge
	a)	Japan
	i)	HF
– First 3 minutes: 1.21 SDR.
– Additional minute: 0.40 SDR.
	ii)	VHF
– First 3 minutes: 0.61 SDR.
– Additional minute: 0.20 SDR.
	b)	Other destinations: the landline charge applicable in the international telephone service.

List
of Ship Stations
(List V)

34th Edition

Part IV
Sous-section 2A / Sub-Section 2A / Subsección 2A
SUP
	CY04	Starcom Systems Ltd., P.O. Box 3117, Limassol, Cyprus.
(Tel +357 5 342301, Tlx 5705 serve cy, Fax +357 5 370687).
International Signalling Point Codes (ISPC)
for signalling system No. 7
(ITU-T Recommendation Q.708)
List No. 22
ADD

Country / Area

1	ISPC

2	Name of signalling area /
network point to which an ISPC is allocated
3	
Indonesia (Republic of)	5-020-0	Jakarta-1b 5Ess	
Indonesia (Republic of)	5-020-1	Jakarta-1a Ewsd	
Indonesia (Republic of)	5-020-2	Medan-2 Ewsd	
Indonesia (Republic of)	5-020-3	Batam-3 5Ess	
Indonesia (Republic of)	5-020-4	Surabaya-4 5Ess	
Indonesia (Republic of)	5-020-5	Jaksspin S12	
Indonesia (Republic of)	5-020-6	Jakscpin A8300	
Indonesia (Republic of)	5-020-7	Jakipin Trans	
Philippines (Republic of)	5-032-0	Philippines (Smart)	
Philippines (Republic of)	5-032-1	Philippines (Smart)	
Philippines (Republic of)	5-032-2	Philippines (Smart)	
Syrian Arab Republic*)	4-034-1	STE Damascus	
Syrian Arab Republic*)	4-034-2	STE Aleppo	
____________
*)	See the communication of Syria, published on page 11 of this Operational Bulletin.

List of Data Network Identification Codes (DNIC)
(ITU-T Recommendation X.121)
(Position on 31 January 1995)
(Annex to ITU Operational Bulletin No. 589 – 1.II.1995)
(Amendment No. 6)
P  7	UNITED STATES
Code 310 2      COL  3
REP	WUI Digital Datel Network      by      MCI Public Data Network (ResponseNet)
Code 310 4      COL  3
REP	WUI Database Access Network      by      MCI Public Data Network (International Gateway)
Code 310 6      COL  3
REP	BT Tymnet Public Data Network      by      MCI Public Data Network (XStream)

List of Telex Destination Codes (TDC)
and Telex Network Identification Codes (TNIC)
(Recommendations ITU-T F.69 and F.68)
(Position on 31 December 1994)
(Annex to ITU Operational Bulletin No. 590 – 15.II.1995)
(Amendment No. 2)

ADD

1	2	3	
590	AD	Andorra (Principality of)	

____________
Note by the ITU:
	See circular telegram No. CTITU B5 of 4.V.1995, reproduced in present Operational Bulletin No. 596 of 15.V.1995, page 11.

List of Names of Administration Management Domains (ADMD)
(Position on 31 August 1994)
(Annex to Operational Bulletin No. 580 of 15.IX.1994)
(Amendment No. 14)

ADD

1	2	3	4	5	6	7	8	9	
Danemark
Denmark
Dinamarca	MASTER400	DK	MASTER400	MASTERMAIL (P7)		S=helpdesk
A=master400
C=it	S=autoanswer
A=master400
C=it	Madia Saponaro
SARITEL S.p.A.
S.S. 148 Pontina Km. 29,100
00040 POMEZIA (ROMA)
Italy
TF:	+39 6 91197659
FAX:	+39 6 91197601
TLX:	616436 sarite i
X.400:	G=madia;
	S=saponaro;
	O=saritel;
	A=master400, C=it
Internet: saponaro@saritel.it	

Recapitulatory List of issuer identifier numbers for
the international telecommunication charge card
(ITU-T Recommendation E.118)
(Position on 30 September 1994)
(Annex to ITU Operational Bulletin No. 582 – 15.X.1994)
(Amendment No. 13)

P  15	ADD

Country	
Company Name/Address	Issuer Identifier Number	
Contact	Effective date of usage	
United Kingdom	Guernsey Telecoms
P.O. Box 3 
St Peter Port
GUERNSEY GY1 3AB	89 44 33	D.J. Sebire
P.O. Box 3 
St Peter Port
GUERNSEY GY1 3AB
Tel	+44 1481700700
Fax	+44 1481724640	1.V.1995	

TA Table – Transferred Account Telegraph and Telematic Service
(7th Edition – July 1988)
ITU-T Recommendation F.41 renumbered F.13
(Amendment No. 161)

CANCELLATION OF CREDIT CARDS

P  223 (VII.91)      ADD

1	2	3	4	5	
EM/2507/EM

EM/2521/EM

FR/117510/FR	06/1995

12/1995

12/1995	Emirats arabes unis (ETISALAT)
Emirats arabes unis
(ETISALAT)
France