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: 665

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-665 A Hillsboro MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242      
667-665 0 Hillsboro MD SLBRMDSBWMD  073H TELNYX LLC 242   2022-08-05   
667-665 2 Hillsboro MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2022-04-25   
667-665 3 Hillsboro MD SLBRMD90BMD  516J TON80 COMMUNICATIONS, LLC 242   2022-03-30   
667-665 4 Hillsboro MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-11-15   
667-665 5 Hillsboro MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-11-15   
667-665 6 Hillsboro MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-08-16   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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