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: 425

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-425 A Smith Island MD SMISMDSIRS0  9212 VERIZON MARYLAND, INC. 242      
410-425 0 Smith Island MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-425 1 Smith Island MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-425 2 Smith Island MD SMISMDSIRS0  9212 VERIZON MARYLAND, INC. 242      
410-425 3 Smith Island MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-02-26   
410-425 4 Smith Island MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-02-26   
410-425 7 Smith Island MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
410-425 9 Smith Island MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-14   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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