1996ETSI GSM 03.03-1996 Digital Cellular Telecommunications System (Phase 2+); Numbering, Addressing and Identification
1994ETSI GSM 03.03-1994 European Digital Cellular Telecommunications System (Phase 2); Numbering, Addressing and Identification (ETS 300 523 Version 4.9.0)
1993ETSI GSM 03.03-1993 European Digital Cellular Telecommunication System (Phase 2); Numbering, Addressing and Identification
1992ETSI GSM 03.03-1992 European Digital Cellular Telecommunication System (Phase 1); Numbering, Addressing and Identification