Local Calling Guide
Area code/prefix search
NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]
NXX: 721
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
231-721 | A | Hart | MI | GDRPMIBLX8Z | 2550 123.NET, LLC | 348 | |||
231-721 | 0 | Hart | MI | GDRPMIBLX8Z | 2550 123.NET, LLC | 348 | |||
231-721 | 1 | Hart | MI | GDRQMIBODMD | 6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 348 | |||
231-721 | 2 | Hart | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | |||
231-721 | 3 | Hart | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | |||
231-721 | 5 | Hart | MI | GDRQMIBODMD | 6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 348 | |||
231-721 | 6 | Hart | MI | MSKGMIXKQMD | 624H ONVOY SPECTRUM, LLC | 348 | |||
231-721 | 7 | Hart | MI | TRCYMIMNWMD | 508J CENTURYLINK COMMUNICATIONS, LLC | 348 | |||
231-721 | 9 | Hart | MI | 2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 348 |
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
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