Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 227 [Rate centres in NPA 227] [Dial plan for NPA 227]

NXX: 234

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-234 A Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-04-29   
227-234 0 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-04-29   
227-234 1 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2024-08-12   
227-234 2 Leonardtown MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-11-11   
227-234 3 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2025-04-03   
227-234 4 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2025-04-03   
227-234 5 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2025-04-03   
227-234 6 Leonardtown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2026-03-23   
227-234 8 Leonardtown MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-01-30   
227-234 9 Leonardtown MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-09-29   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.