Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: WHMRMDWMRS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-931 A Parkville MD 9212 VERIZON MARYLAND, INC. 238      
410-933 A Parkville MD 9212 VERIZON MARYLAND, INC. 238      
443-678 A Parkville MD 9212 VERIZON MARYLAND, INC. 238      
443-678 1 Parkville MD 9212 VERIZON MARYLAND, INC. 238      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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