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: TPKAKSFADS0

Remotes:

Switch Switch name Switch type
TPKAKSAURS7  AUBURN (TWP)  RSC 
TPKAKSDORS8  TOPEKA  RSC 
TPKAKSMHRS6  MAPLE HILL  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
785-228 A Topeka KS 9533 SOUTHWESTERN BELL 534      
785-256 A Topeka KS 9533 SOUTHWESTERN BELL 534      
785-271 A Topeka KS 9533 SOUTHWESTERN BELL 534      
785-272 A Topeka KS 9533 SOUTHWESTERN BELL 534      
785-273 A Topeka KS 9533 SOUTHWESTERN BELL 534      
785-438 A Topeka KS 9533 SOUTHWESTERN BELL 534      
785-478 A Topeka KS 9533 SOUTHWESTERN BELL 534      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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