Local Calling Guide
Area code/prefix search
NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]
NXX: 447
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
231-447 | A | Holton | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | |||
231-447 | 0 | Holton | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | 2016-02-24 | ||
231-447 | 1 | Holton | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | 2016-01-29 | ||
231-447 | 2 | Holton | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | 2016-01-29 | ||
231-447 | 3 | Holton | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | 2016-02-24 | ||
231-447 | 4 | Holton | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | 2021-03-06 | ||
231-447 | 5 | Holton | MI | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 | 2021-03-06 | ||
231-447 | 6 | Holton | MI | MSKGMIXKQMD | 624H ONVOY SPECTRUM, LLC | 348 | 2021-06-19 | ||
231-447 | 7 | Holton | MI | MSKGMIXKX1X | 543C ONVOY, LLCV - MI | 348 | 2023-08-12 | ||
231-447 | 8 | Holton | MI | GDRPMIBL41Z | 506J TWILIO INTERNATIONAL, INC. | 348 | 2021-07-26 | ||
231-447 | 9 | Holton | MI | GDRPMIBL00Z | 991E BANDWIDTH.COM CLEC, LLC - MI | 348 | 2021-01-04 |
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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