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: 289

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-289 A Waldorf MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-10-11   
227-289 0 Waldorf MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2025-12-15   
227-289 1 Waldorf MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2025-12-15   
227-289 2 Waldorf MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2025-12-15   
227-289 7 Waldorf MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-01   
227-289 8 Waldorf MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-12-01   
227-289 9 Waldorf MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-10-11   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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