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: SNANTXCADS2

Remotes:

Switch Switch name Switch type
SNANTXBARS3  SAN ANTONIO BABCOCK  ORM 
SNANTXDIRS0  SAN ANTONIO DIAMOND  ORM 
SNANTXEDRS2  SAN ANTONIO EDISON  RSL 
SNANTXFRRS5  SAN ANTONIO FRATT  ORM 
SNANTXGERS2  SAN ANTONIO GENERAL  ORM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-206 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-207 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-208 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-225 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-227 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-228 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-229 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-231 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-233 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-235 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-244 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-246 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-250 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-255 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-258 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-261 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-272 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-281 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-296 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-297 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-302 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-335 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-351 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-352 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-353 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-354 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-357 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-358 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-362 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-368 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-369 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-370 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-423 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-444 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-472 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-474 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-475 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-476 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-486 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-518 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-527 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-528 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-554 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-588 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-704 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-715 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-730 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-768 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-856 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-886 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-936 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-938 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-978 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-999 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
956-473 A Laredo TX 9533 SOUTHWESTERN BELL 566      

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

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