Local Calling Guide
Area code/prefix search
NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]
NXX: 257
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
667-257 | A | Columbia | MD | BLTMMDCHXQX | 197D VONAGE AMERICA LLC | 238 | |||
667-257 | 0 | Columbia | MD | 197D VONAGE AMERICA LLC | 238 | 2018-12-29 | |||
667-257 | 1 | Columbia | MD | 197D VONAGE AMERICA LLC | 238 | 2018-12-29 | |||
667-257 | 2 | Columbia | MD | 197D VONAGE AMERICA LLC | 238 | 2018-12-29 | |||
667-257 | 3 | Columbia | MD | 197D VONAGE AMERICA LLC | 238 | 2018-12-29 | |||
667-257 | 4 | Columbia | MD | 197D VONAGE AMERICA LLC | 238 | 2018-12-30 | |||
667-257 | 6 | Columbia | MD | 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 238 | 2021-05-01 | |||
667-257 | 7 | Columbia | MD | 4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 238 | 2019-11-26 | |||
667-257 | 8 | Columbia | MD | 2593 CORE COMMUNICATIONS, INC.- MD | 238 | 2019-06-27 | |||
667-257 | 9 | Columbia | MD | 2593 CORE COMMUNICATIONS, INC.- MD | 238 | 2019-06-27 |
Last updated: Fri, 01 Jul 2022 02:53:40 UTC
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