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: 768

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-768 A Nanjemoy MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
240-768 5 Nanjemoy MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2021-07-12   
240-768 6 Nanjemoy MD   516J TON80 COMMUNICATIONS, LLC 236   2021-10-07   
240-768 7 Nanjemoy MD   624H ONVOY SPECTRUM, LLC 236   2021-06-25   
240-768 8 Nanjemoy MD   624H ONVOY SPECTRUM, LLC 236   2021-11-15   
240-768 9 Nanjemoy MD   624H ONVOY SPECTRUM, LLC 236   2021-11-15   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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