Section: 8.2 National network subsystem numbers used for GSM/UMTS
Content: The following national network subsystem numbers have been allocated for use within GSM/UMTS networks: 1111 1000 CSS (MAP); 1111 1001 PCAP; 1111 1010 BSC (BSSAP-LE); 1111 1011 MSC (BSSAP-LE); 1111 1100 SMLC (BSSAP-LE); 1111 1101 BSS O&M (A interface); 1111 1110 BSSAP (A interface). The following national network subsystem numbers have been allocated for use within and between GSM/UMTS networks: 1000 1110 RANAP; 1000 1111 RNSAP; 1001 0001 GMLC (MAP); 1001 0010 CAP; 1001 0011 gsmSCF (MAP) or IM-SSF (MAP) or Presence Network Agent; 1001 0100 SIWF (MAP); 1001 0101 SGSN (MAP); 1001 0110 GGSN (MAP).