Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: PRHLMDPHDS0

Remotes:

Switch Switch name Switch type
WHMRMDWMRS2  WHITE MARSH  EXM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-248 A Parkville MD 9212 VERIZON MARYLAND, INC. 238      
410-248 0 Parkville MD 9212 VERIZON MARYLAND, INC. 238      
410-248 1 Parkville MD 9212 VERIZON MARYLAND, INC. 238      
410-248 2 Parkville MD 9212 VERIZON MARYLAND, INC. 238      
410-248 3 Parkville MD 9212 VERIZON MARYLAND, INC. 238      
410-248 8 Parkville MD 9212 VERIZON MARYLAND, INC. 238      
410-248 9 Parkville MD 9212 VERIZON MARYLAND, INC. 238      
410-256 A Parkville MD 9212 VERIZON MARYLAND, INC. 238      
410-529 A Parkville MD 9212 VERIZON MARYLAND, INC. 238      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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