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: 819

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-819 A Williamsport MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-819 0 Williamsport MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2024-03-03   
240-819 1 Williamsport MD   876D ONVOY, LLC - MD 240   2025-11-28   
240-819 2 Williamsport MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2021-11-01   
240-819 3 Williamsport MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2021-12-19   
240-819 7 Williamsport MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-819 8 Williamsport MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2023-02-27   
240-819 9 Williamsport MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2022-11-28   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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