Local Calling Guide
Area code/prefix search
NPA: 303 [Rate centres in NPA 303] [Dial plan for NPA 303]
NXX: 612
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
303-612 | A | Denver | CO | DNVRCOMAXTZ | 6630 USA MOBILITY WIRELESS, INC. | 656 |
Last updated: Fri, 22 Mar 2024 03:02:44 UTC
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