Transcription of AT&T Circuit Prefixes - N-cg.net
1 AT&T Circuit Prefixes Circuit PREFIX MPCs (Channels) 56KB AREC 1 64KB DVEC 1 128KB DXEC 2 192KB IAEC 3 256KB DZEC 4 320KB ICEC 5 384KB DCEC 6 448KB IDEC 7 512KB DEEC 8 576KB IEEC 9 640KB IFEC 10 704KB IGEC 11 768KB DTEC 12 Mbps DHEC 24 T45 DNEC 28 x 24 = 672 KBBC = SDN KJET = ISDN KBLC = TSAA/AVA/MEGACOM KCEC = VIDEO TALC = TIE LINES