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: SNANTXWADS0

Remotes:

Switch Switch name Switch type
HONDTXHODS0  HONDO  5E 

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-989 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-989 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-989 8 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-989 9 San Antonio TX 9533 SOUTHWESTERN BELL 566      

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Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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