Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX: 657

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-657 A Frostburg MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
240-657 0 Frostburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2016-07-11   
240-657 1 Frostburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-12   
240-657 2 Frostburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-12   
240-657 3 Frostburg MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2016-02-20   
240-657 4 Frostburg MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-17   
240-657 5 Frostburg MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-17   
240-657 6 Frostburg MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-17   
240-657 7 Frostburg MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240   2016-11-12   
240-657 8 Frostburg MD CMLDMDCM2MD  836G SHENTEL COMMUNICATIONS, LLC. - MD 240   2020-10-22   
240-657 9 Frostburg MD HGTWMD530MD  073H TELNYX LLC 240   2017-08-08   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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