Local Calling Guide
Area code/prefix search
NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]
NXX: 313
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
443-313 | A | Fork | MD | BLTOMDXIDS0 | 6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD | 238 | |||
443-313 | 2 | Fork | MD | 145J TERRA NOVA TELECOM INC. | 238 | 2022-05-06 | |||
443-313 | 3 | Fork | MD | BLTMMDCHXFX | 318J COMCAST IP PHONE, LLC | 238 | 2015-03-19 | ||
443-313 | 4 | Fork | MD | BLTOMDXIDS0 | 6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD | 238 | |||
443-313 | 5 | Fork | MD | BLTMMDSN6MD | 6119 LEVEL 3 COMMUNICATIONS, LLC - MD | 238 | |||
443-313 | 6 | Fork | MD | BLTMMDCH42Z | 876D ONVOY, LLC - MD | 238 | 2016-04-04 | ||
443-313 | 7 | Fork | MD | BLTMMDCH42Z | 876D ONVOY, LLC - MD | 238 | 2016-04-04 | ||
443-313 | 8 | Fork | MD | BLTQMD01DS0 | 568G PEERLESS NETWORK OF MARYLAND, LLC | 238 | 2013-05-04 | ||
443-313 | 9 | Fork | MD | BLTQMD01DS0 | 568G PEERLESS NETWORK OF MARYLAND, LLC | 238 | 2013-05-04 |
Last updated: Sun, 26 Jan 2025 15:59:20 UTC
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