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: BLTMMDWLDS0

Remotes:

Switch Switch name Switch type
BLTMMDKMRS0  BALTIMORE KEY MEDICAL  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-276 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-327 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-342 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-502 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-522 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-534 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-537 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-558 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-563 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-614 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-675 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-732 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
410-955 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
443-287 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      
443-455 A Baltimore MD 9212 VERIZON MARYLAND, INC. 238      

Last updated: Sat, 08 Jun 2019 01:52:21 UTC

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