Local Calling Guide
Area code/prefix search
NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]
NXX: 431
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
231-431 | A | Clam River | MI | GDRPMIBL36Z | 624H ONVOY SPECTRUM, LLC | 348 | |||
231-431 | 0 | Clam River | MI | GDRPMIBL00Z | 991E BANDWIDTH.COM CLEC, LLC - MI | 348 | 2021-08-23 | ||
231-431 | 1 | Clam River | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | 2023-08-26 | ||
231-431 | 2 | Clam River | MI | GDRPMIBL41Z | 506J TWILIO INTERNATIONAL, INC. | 348 | 2021-07-26 | ||
231-431 | 3 | Clam River | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | 2021-07-24 | ||
231-431 | 4 | Clam River | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | 2022-03-04 | ||
231-431 | 5 | Clam River | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | 2021-09-10 |
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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