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: 670

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-670 A Sudlersville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-670 0 Sudlersville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-18   
667-670 1 Sudlersville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-18   
667-670 3 Sudlersville MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-670 6 Sudlersville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-17   
667-670 7 Sudlersville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-21   
667-670 8 Sudlersville MD SLBRMD908MD  490J BOOST SUBSCRIBERCO L.L.C. 242   2022-12-20   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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