Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 621

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-621 A Princess Anne MD PRANMDPARS1  9212 VERIZON MARYLAND, INC. 242      
410-621 0 Princess Anne MD PRANMDPARS1  9212 VERIZON MARYLAND, INC. 242      
410-621 1 Princess Anne MD PRANMDPARS1  9212 VERIZON MARYLAND, INC. 242   2002-06-01   
410-621 2 Princess Anne MD PRANMDPARS1  9212 VERIZON MARYLAND, INC. 242   2002-06-01   
410-621 3 Princess Anne MD PRANMDPARS1  9212 VERIZON MARYLAND, INC. 242   2002-06-01   
410-621 4 Princess Anne MD   876D ONVOY, LLC - MD 242   2021-04-29   
410-621 5 Princess Anne MD SLBRMDSBXLX  318J COMCAST IP PHONE LLC 242   2006-07-31   
410-621 6 Princess Anne MD   145J TERRA NOVA TELECOM INC. 242   2021-01-28   
410-621 7 Princess Anne MD   876D ONVOY, LLC - MD 242   2021-04-29   
410-621 8 Princess Anne MD SLBRMDSB8MD  2589 US LEC OF MARYLAND, INC. 242   2014-09-04   
410-621 9 Princess Anne MD ESTNMDES5MD  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 242   2009-03-02   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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