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: 505

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-505 A Ellicott City MD CLMAMDOBDS0  9212 VERIZON MARYLAND, INC. 238      
410-505 0 Ellicott City MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
410-505 1 Ellicott City MD BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238      
410-505 2 Ellicott City MD CLMAMDOBDS0  9212 VERIZON MARYLAND, INC. 238      
410-505 3 Ellicott City MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
410-505 4 Ellicott City MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-505 5 Ellicott City MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-505 6 Ellicott City MD CLMAMDOBDS0  9212 VERIZON MARYLAND, INC. 238      
410-505 7 Ellicott City MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
410-505 8 Ellicott City MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-505 9 Ellicott City MD BLTMMDCHAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 238      

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

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