In force components 
Number

Title 
Status 
X.680X.693 (08/2015) 
Information Technology  Abstract Syntax Notation One (ASN.1) & ASN.1 encoding rules
This word collective file contains automatic crosslinkings, and is available in English only. Please read carefully the readmefirst.doc file before opening it.

In force

X.680 (08/15) 
Information technology  Abstract Syntax Notation One (ASN.1): Specification of basic notation
The zip file containing the Word versions of Rec. ITUT X.680 (2015)  ISO/IEC 88241:2015 to Rec. ITUT X.693 (2015)  ISO/IEC 88254:2015 can be found at: http://web.itu.int/rec/TRECX.680X.693201508I/en

In force

X.680 (2015) Corrigendum 1 (05/17) 

In force

X.680 (2015) Corrigendum 2 (10/17) 

In force

X.680 (2015) Corrigendum 3 (05/18) 

In force

X.680 (2015) Amendment 1 (05/18) 
Relaxing IMPORTS clause to allow importation of definitions from new versions of a given module

In force


Superseded and Withdrawn components 
Number

Title 
Status 
X.680X.693 (11/08) 
Information Technology  Abstract Syntax Notation One (ASN.1) & ASN.1 encoding rules
This word collective file contains automatic crosslinkings, and is available in English only. Please read carefully the readmefirst.doc file before opening it.

Superseded

X.680X.695 (07/02) 
Information Technology  Abstract Syntax Notation One (ASN.1) & ASN.1 encoding rules
This word collective file contains automatic crosslinkings, and is available in English only. Please read carefully the readme.rtf file before opening it.

Superseded

X.680 (07/94) 
Information technology  Abstract Syntax Notation One (ASN.1): Specification of basic notation

Superseded

X.680 (1994) Amendment 1 (04/95) 
Rules of extensibility

Superseded

X.680 (1994) Technical Cor. 1 (11/95) 

Superseded

X.680 (1994) Corrigendum 2 (12/97) 
Never published. Decision was taken to republish the whole set of ITUT Recommendations X.680 to X.691

Superseded

X.680 (1994) Amendment 1 Corrigendum 1 (12/97) 
Never published. Decision was taken to republish the whole set of ITUT Recommendations X.680 to X.691

Superseded

X.680 (1994) Amendment 2 (12/97) 
Remove definition of root arcs of object identifier tree
Never published. Decision was taken to republish the whole set of ITUT Recommendations X.680 to X.691

Superseded

X.680 (12/97) 
Information technology  Abstract Syntax Notation One (ASN.1): Specification of basic notation

Superseded

X.680 (1997) Technical Cor. 1 (06/99) 

Superseded

X.680 (1997) Amendment 1 (06/99) 
Relative object identifiers

Superseded

X.680 (1997) Amendment 2 (06/99) 
ASN.1 Semantic model

Superseded

X.680 (1997) Technical Cor. 2 (03/00) 

Superseded

X.680 (1997) Technical Cor. 3 (02/01) 

Superseded

X.680 (1997) Technical Cor. 4 (03/01) 

Superseded

X.680 (1997) Amendment 3 (10/01) 
XML value notation
Never published, consolidated in ITUT Rec. X.680 (07/2002)

Superseded

X.680 (1997) Amendment 4 (10/01) 
Version number support
Never published, consolidated in ITUT Rec. X.680 (07/2002)

Superseded

X.680 (07/02) 
Information technology  Abstract Syntax Notation One (ASN.1): Specification of basic notation

Superseded

X.680 (2002) Amendment 1 (10/03) 
Support for EXTENDEDXER

Superseded

X.680 (2002) Amendment 2 (08/04) 
Alignment with changes made to ITUT Rec. X.660  ISO/IEC 98341 for identifiers in object identifier value notation

Superseded

X.680 (2002) Corrigendum 1 (05/05) 

Superseded

X.680 (2002) Amendment 3 (06/06) 
Time type support

Superseded

X.680 (2002) Amendment 4 (05/07) 
PER encoding instructions

Superseded

X.680 (11/08) 
Information technology  Abstract Syntax Notation One (ASN.1): Specification of basic notation

Superseded

X.680 (2008) Corrigendum 1 (10/11) 
This Corrigendum was republished to indicate 2012 as year of publication in ISO.

Superseded

X.680 (2008) Corrigendum 2 (03/14) 

Superseded
