Local Calling Guide
Area code/prefix search
NPA: 557 [Rate centres in NPA 557] [Dial plan for NPA 557]
NXX: 221
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
557-221 | A | Mehlville | MO | 093F ONVOY, LLC - MO | 520 | 2024-06-01 | |||
557-221 | 0 | Mehlville | MO | 093F ONVOY, LLC - MO | 520 | 2024-06-01 |
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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