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: 226

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-226 A Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2024-03-30   
227-226 0 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2024-03-30   
227-226 1 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2024-03-30   
227-226 2 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2024-03-30   
227-226 3 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2024-03-30   
227-226 4 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2024-03-30   
227-226 5 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2024-03-30   
227-226 6 Frederick MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2024-03-30   
227-226 7 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-08-26   
227-226 8 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-08-26   
227-226 9 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2024-08-26   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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