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: 347

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-347 A Federalsburg MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-347 0 Federalsburg MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-18   
667-347 1 Federalsburg MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-18   
667-347 2 Federalsburg MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-07-12   
667-347 3 Federalsburg MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-347 4 Federalsburg MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2022-03-13   
667-347 5 Federalsburg MD SLBRMD90BMD  516J TON80 COMMUNICATIONS, LLC 242   2022-03-31   
667-347 6 Federalsburg MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-17   
667-347 7 Federalsburg MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-21   
667-347 8 Federalsburg MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-21   
667-347 9 Federalsburg MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-12-19   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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