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: 673

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-673 A Preston MD PSTNMDPSRS0  9212 VERIZON MARYLAND, INC. 242      
410-673 0 Preston MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-673 1 Preston MD PSTNMDPSRS0  9212 VERIZON MARYLAND, INC. 242      
410-673 2 Preston MD PSTNMDPSRS0  9212 VERIZON MARYLAND, INC. 242      
410-673 3 Preston MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-673 4 Preston MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
410-673 6 Preston MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-28   
410-673 7 Preston MD PSTNMDPSRS0  9212 VERIZON MARYLAND, INC. 242      
410-673 8 Preston MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2006-07-31   
410-673 9 Preston MD PSTNMDPSRS0  9212 VERIZON MARYLAND, INC. 242      

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

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