Local Calling Guide
Area code/prefix search
NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]
NXX: 315
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
231-315 | A | Muskegon | MI | GDRPMIBL44Z | 6630 USA MOBILITY WIRELESS, INC. | 348 |
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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