Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Marion, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-623 A MARNMDMARS1  9212 VERIZON MARYLAND, INC. 242      
410-623 0   2593 CORE COMMUNICATIONS, INC. - MD 242   2004-04-03   
410-623 1   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
410-623 2   9212 VERIZON MARYLAND, INC. 242      
410-623 3   876D ONVOY, LLC - MD 242   2019-03-04   
410-623 4   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
410-623 5   073H TELNYX LLC 242   2017-09-13   
410-623 6   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
410-623 7   876D ONVOY, LLC - MD 242   2017-04-14   
410-623 8   9212 VERIZON MARYLAND, INC. 242      
410-623 9   089J CHARTER FIBERLINK - MARYLAND II, LLC - MD 242   2019-08-07   
667-660 A   876D ONVOY, LLC - MD 242   2019-12-11   
667-660 6   876D ONVOY, LLC - MD 242   2019-12-11   
667-660 7   876D ONVOY, LLC - MD 242   2019-12-11   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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