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: 824

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-824 A Frostburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-824 0 Frostburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2021-05-15   
240-824 1 Frostburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2021-05-15   
240-824 2 Frostburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2021-05-14   
240-824 3 Frostburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2021-09-12   
240-824 4 Frostburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2021-05-21   
240-824 5 Frostburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2021-07-11   
240-824 6 Frostburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2021-07-11   
240-824 7 Frostburg MD HGTWMD53EMD  516J TON80 COMMUNICATIONS, LLC 240   2021-11-12   
240-824 8 Frostburg MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-824 9 Frostburg MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240   2022-01-17   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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