Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 771 [Rate centres in NPA 771] [Dial plan for NPA 771]

NXX: 252

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
771-252 A Washington Zone 1 DC   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-05-09   
771-252 6 Washington Zone 1 DC   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-05-09   
771-252 7 Washington Zone 1 DC   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-05-09   
771-252 8 Washington Zone 1 DC   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-05-09   
771-252 9 Washington Zone 1 DC   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-05-09   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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