Local Calling Guide

Area code/prefix search

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Rock Hall, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-639 A RKHLMDRHRS0  9212 VERIZON MARYLAND, INC. 242      
410-639 0   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-639 2 RKHLMDRHRS0  9212 VERIZON MARYLAND, INC. 242      
410-639 3 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
410-639 4 ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-639 5 ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2017-09-18   
410-639 6 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-03-05   
410-639 7 RKHLMDRHRS0  9212 VERIZON MARYLAND, INC. 242      
410-639 8 SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-639 9 RKHLMDRHRS0  9212 VERIZON MARYLAND, INC. 242      
667-242 A ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242      
667-242 0   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-08-03   
667-242 1   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-08-03   
667-242 2   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-08-03   
667-242 3 ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
667-242 4 ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
667-242 5 ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
667-242 6 ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
667-242 7 ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
667-242 8 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-02-26   
667-242 9 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-02-26   
667-377 A SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-377 2 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-12-20   
667-377 3 SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-377 4 SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2022-03-05   
667-377 5 SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2022-03-05   
667-377 6 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-17   
667-377 7 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-21   

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

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