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: ELDOARMADS0

Remotes:

Switch Switch name Switch type
CALNARMARS2  CALION  5ER 
CHDSARMARS1  CHIDESTER  5ER 
CMDNARCURS1  CAMDEN  5ER 
CMDNARSHRS1  EAST CAMDEN  5ER 
CMDNARTERS1  CAMDEN  5ER 
HTTGARMARS2  HUTTIG  5ER 
MTHLARMARS2  MOUNT HOLLY  5ER 
NRPHARMARS2  NORPHLET  5ER 
SMCKARMARS1  SMACKOVER  5ER 
STPHARMARS1  STEPHENS  5ER 
STRNARMARS2  STRONG  5ER 
URBNARMARS2  URBANA  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
870-309 A El Dorado AR 9533 SOUTHWESTERN BELL 530      
870-862 A El Dorado AR 9533 SOUTHWESTERN BELL 530      
870-863 A El Dorado AR 9533 SOUTHWESTERN BELL 530      
870-864 A El Dorado AR 9533 SOUTHWESTERN BELL 530      
870-875 A El Dorado AR 9533 SOUTHWESTERN BELL 530      
870-881 A El Dorado AR 9533 SOUTHWESTERN BELL 530      

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

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