Local Calling Guide

Area code/prefix search

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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 SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-14   
410-623 2 MARNMDMARS1  9212 VERIZON MARYLAND, INC. 242      
410-623 3 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   
410-623 5 SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-623 6 SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-09-13   
410-623 7 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
410-623 8 MARNMDMARS1  9212 VERIZON MARYLAND, INC. 242      
410-623 9 SLBRMDSBX7Y  792K CHARTER IP ENABLED SERVICES, LLC 242   2020-09-25   
667-660 A SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-660 4 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-10-17   
667-660 5 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-10-17   
667-660 6 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-12-11   
667-660 7 SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-12-11   
667-660 8 SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-05-27   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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