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: 344

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-344 A Chase MD CHASMDCHDS0  9212 VERIZON MARYLAND, INC. 238      
410-344 0 Chase MD CHASMDCHDS0  9212 VERIZON MARYLAND, INC. 238      
410-344 1 Chase MD CHASMDCHDS0  9212 VERIZON MARYLAND, INC. 238      
410-344 2 Chase MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-344 3 Chase MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-344 4 Chase MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238      
410-344 5 Chase MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-344 6 Chase MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
410-344 7 Chase MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-344 8 Chase MD BLTMMDCHAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 238      
410-344 9 Chase MD CHASMDCHDS0  9212 VERIZON MARYLAND, INC. 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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