Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 227 [Rate centres in NPA 227] [Dial plan for NPA 227]

NXX: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-233 A Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-04-08   
227-233 0 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2024-06-15   
227-233 1 Washington Zone 2 MD ARTNVAARXGY  478J NUSO, LLC 236   2024-06-17   
227-233 2 Washington Zone 2 MD ARTNVAARXGY  478J NUSO, LLC 236   2024-06-17   
227-233 3 Washington Zone 2 MD ARTNVAARXGY  478J NUSO, LLC 236   2024-06-17   
227-233 4 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-07-05   
227-233 5 Washington Zone 2 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2024-07-14   
227-233 6 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-04-08   
227-233 7 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-04-08   
227-233 8 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-04-08   
227-233 9 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-04-08   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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