Local Calling Guide

Area code/prefix search

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Hillsboro, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-364 A HLBOMDTKRS0  9212 VERIZON MARYLAND, INC. 242      
410-364 0   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-364 3 ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-364 4 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-13   
410-364 5 HLBOMDTKRS0  9212 VERIZON MARYLAND, INC. 242      
410-364 6   145J TERRA NOVA TELECOM INC. 242   2024-02-14   
410-364 7 SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2008-08-30   
410-364 8 SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-364 9 HLBOMDTKRS0  9212 VERIZON MARYLAND, INC. 242      
667-255 A SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-255 0 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2018-10-13   
667-255 1 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   
667-255 2 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   
667-255 3   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
667-255 4   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
667-255 6   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
667-255 8 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-04-29   
667-255 9   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
667-665 A SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242      
667-665 0 SLBRMDSBWMD  073H TELNYX LLC 242   2022-08-05   
667-665 2 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2022-04-25   
667-665 3 SLBRMD90BMD  516J TON80 COMMUNICATIONS, LLC 242   2022-03-30   
667-665 4 SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-11-15   
667-665 5 SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-11-15   
667-665 6 SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-08-16   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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