Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 668

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-668 A Fallston MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-668 0 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2021-12-15   
667-668 1 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2022-03-02   
667-668 2 Fallston MD   876D ONVOY, LLC - MD 238   2021-07-11   
667-668 3 Fallston MD   876D ONVOY, LLC - MD 238   2021-07-11   
667-668 4 Fallston MD   624H ONVOY SPECTRUM, LLC 238   2022-02-11   
667-668 5 Fallston MD   624H ONVOY SPECTRUM, LLC 238   2022-02-11   
667-668 6 Fallston MD   624H ONVOY SPECTRUM, LLC 238   2021-06-26   
667-668 7 Fallston MD   516J TON80 COMMUNICATIONS, LLC 238   2021-06-27   
667-668 8 Fallston MD   876D ONVOY, LLC - MD 238   2026-01-04   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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