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: 293

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-293 A Cumberland MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2025-09-28   
227-293 0 Cumberland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2025-12-14   
227-293 1 Cumberland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2026-06-22   
227-293 2 Cumberland MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2025-09-28   
227-293 3 Cumberland MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2025-09-28   
227-293 4 Cumberland MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2025-09-28   
227-293 7 Cumberland MD   824J OPENTACT INC. 240   2026-10-16   
227-293 8 Cumberland MD   876D ONVOY, LLC - MD 240   2026-08-15   
227-293 9 Cumberland MD   876D ONVOY, LLC - MD 240   2026-09-28   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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