Local Calling Guide
Area code/prefix search
NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]
NXX: 957
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
443-957 | A | Baltimore | MD | BLTMMDCHXAX | 7421 AT&T - LOCAL | 238 | |||
443-957 | 1 | Baltimore | MD | BLTMMDSN6MD | 6119 LEVEL 3 COMMUNICATIONS, LLC - MD | 238 | 2005-03-12 | ||
443-957 | 2 | Baltimore | MD | BLTMMDCHXAX | 7421 AT&T - LOCAL | 238 | |||
443-957 | 4 | Baltimore | MD | BLTMMDSN6MD | 6119 LEVEL 3 COMMUNICATIONS, LLC - MD | 238 | 2004-05-29 | ||
443-957 | 5 | Baltimore | MD | BLTMMDCH40Z | 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 238 | 2005-09-22 | ||
443-957 | 6 | Baltimore | MD | BLTMMDCHXAX | 7421 AT&T - LOCAL | 238 | |||
443-957 | 9 | Baltimore | MD | BLTMMDCHXNX | 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 238 | 2005-08-03 |
Last updated: Fri, 22 Mar 2024 03:02:44 UTC
Sponsored by: VoIP.ms
Like this site? We accept donations via PayPal.