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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: ESTNMDESDS0

Remotes:

Switch Switch name Switch type
DNTNMDDTRS0  DENTON  5ER 
FDBGMDFERS0  FEDERALSBURG  5ER 
GNBOMDGRRS0  GREENSBORO  5ER 
HLBOMDTKRS0  HILLSBORO  5ER 
HRLCMDHLRS0  HURLOCK  5ER 
OXFRMDOXRS0  OXFORD  5ER 
PSTNMDPSRS0  PRESTON  5ER 
QNTWMDQNRS0  QUEENSTOWN  5ER 
RMCKMDRRRS0  ROMANCOKE  5ER 
STMCMDSMRS0  ST. MICHAELS  5ER 
STVLMDSTRS1  STEVENSVILLE  EXM 
TLGHMDTLRS0  TILGHMAN  5ER 
TRPPMDTRRS0  TRAPPE  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-763 A Easton MD 9212 VERIZON MARYLAND, INC. 242      
410-770 A Easton MD 9212 VERIZON MARYLAND, INC. 242      
410-819 A Easton MD 9212 VERIZON MARYLAND, INC. 242      
410-820 A Easton MD 9212 VERIZON MARYLAND, INC. 242      
410-822 A Easton MD 9212 VERIZON MARYLAND, INC. 242      

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

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