CCITT Rec. F.125 (11/1988) – TELEX NUMBERING PLAN FOR THE MOBILE-SATELLITE SERVICES OF INMARSAT
1 Introduction
    1.1 Purpose
    1.2 Terminology
    1.3 Basic considerations
2 Format of INMARSAT mobile international number
3 Telex destination codes for INMARSAT applications
4 Format of INMARSAT mobile earth station number
    4.1 General format
    4.2 Formats for INMARSAT Standard-A system
    4.3 Formats for INMARSAT Standard-B system
    4.4 Format for INMARSAT Standard-C system
    4.5 Format for INMARSAT aeronautical system
    4.6 Future INMARSAT standard systems
5 Digit analysis
6 Presentation of INMARSAT mobile numbers in directories
    6.1 General
ANNEX A – Use of ship station identification for maritime applications of systems operated by INMARSAT
A.1 General
A.2 Constraints on ship station identification and numbering
A.3 Applications of ship station identity
    A.3.1 Digit capacity in block 2
    A.3.2 Mapping between ship station identity and digits in block 2
    A.3.3 Ships equipped with several INMARSAT standard systems
ANNEX B – Group call numbering scheme for the INMARSAT system
B.1 Categories for group call services
    B.1.1 National group calls
    B.1.2 Fleet group calls
    B.1.3 Selected group calls
    B.1.4 Area group calls
B.2 Group call formats
Reference