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: 835

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-835 A Willards MD WLRDMDWRRS1  9212 VERIZON MARYLAND, INC. 242      
410-835 0 Willards MD   876D ONVOY, LLC - MD 242   2019-03-10   
410-835 1 Willards MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-835 2 Willards MD   9212 VERIZON MARYLAND, INC. 242      
410-835 3 Willards MD   9212 VERIZON MARYLAND, INC. 242      
410-835 4 Willards MD   876D ONVOY, LLC - MD 242   2020-04-30   
410-835 5 Willards MD   861F MCC TELEPHONY OF THE MID-ATLANTIC, LLC - MD 242   2010-08-21   
410-835 6 Willards MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-06-07   
410-835 7 Willards MD   876D ONVOY, LLC - MD 242   2017-04-14   
410-835 8 Willards MD   9212 VERIZON MARYLAND, INC. 242      
410-835 9 Willards MD   876D ONVOY, LLC - MD 242   2019-03-10   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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