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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-203 A Frederick MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
227-203 0 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
227-203 1 Frederick MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
227-203 2 Frederick MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
227-203 3 Frederick MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
227-203 4 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
227-203 5 Frederick MD CMLDMDCMUMD  073H TELNYX LLC 240      
227-203 6 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
227-203 7 Frederick MD   876D ONVOY, LLC - MD 240      
227-203 8 Frederick MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
227-203 9 Frederick MD HGTWMD53DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 240      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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