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: CSNGOKMADS0

Remotes:

Switch Switch name Switch type
BRSWOKMARL1  BRISTOW  AXR 
CLEVOKMARL1  CLEVELAND  AXR 
DEPWOKMARL1  DEPEW  AXR 
DRMROKMARL1  DRUMRIGHT  AXR 
OLTNOKMARL1  OILTON  AXR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
918-223 A Cushing OK 9533 SOUTHWESTERN BELL 538      
918-223 0 Cushing OK 9533 SOUTHWESTERN BELL 538      
918-223 2 Cushing OK 9533 SOUTHWESTERN BELL 538      
918-225 A Cushing OK 9533 SOUTHWESTERN BELL 538      
918-285 A Cushing OK 9533 SOUTHWESTERN BELL 538      
918-285 5 Cushing OK 9533 SOUTHWESTERN BELL 538      
918-725 A Cushing OK 9533 SOUTHWESTERN BELL 538      
918-725 0 Cushing OK 9533 SOUTHWESTERN BELL 538      

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

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