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: SKTNKSASRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
785-425 A Stockton KS 9533 SOUTHWESTERN BELL 534      
785-425 1 Stockton KS 9533 SOUTHWESTERN BELL 534      
785-425 6 Stockton KS 9533 SOUTHWESTERN BELL 534      
785-425 7 Stockton KS 9533 SOUTHWESTERN BELL 534      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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