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: 266

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-266 A Washington Zone 14 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-266 0 Washington Zone 14 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-266 1 Washington Zone 14 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2021-10-07   
240-266 2 Washington Zone 14 MD WASHDC12MMD  516J TON80 COMMUNICATIONS, LLC 236   2021-06-10   
240-266 3 Washington Zone 14 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2020-04-19   
240-266 4 Washington Zone 14 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-09-10   
240-266 5 Washington Zone 14 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-09-24   
240-266 6 Washington Zone 14 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-10-31   
240-266 7 Washington Zone 14 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-05-21   
240-266 8 Washington Zone 14 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-09-24   
240-266 9 Washington Zone 14 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2020-04-30   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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