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: SNANTXCUDS0

1 2 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-201 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-201 9 San Antonio TX 9533 SOUTHWESTERN BELL 566   2011-11-06   
210-256 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-256 0 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-256 1 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-256 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-256 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-256 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-256 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-256 8 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-257 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-257 1 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-257 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-257 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-257 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-257 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-346 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-346 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-346 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-346 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-346 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-397 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-398 1 San Antonio TX 9533 SOUTHWESTERN BELL 566   2009-05-16   
210-398 2 San Antonio TX 9533 SOUTHWESTERN BELL 566   2009-05-16   
210-398 3 San Antonio TX 9533 SOUTHWESTERN BELL 566   2009-05-16   
210-398 4 San Antonio TX 9533 SOUTHWESTERN BELL 566   2009-05-16   
210-398 5 San Antonio TX 9533 SOUTHWESTERN BELL 566   2009-05-16   
210-398 6 San Antonio TX 9533 SOUTHWESTERN BELL 566   2009-05-16   
210-398 7 San Antonio TX 9533 SOUTHWESTERN BELL 566   2009-05-16   
210-398 8 San Antonio TX 9533 SOUTHWESTERN BELL 566   2009-05-16   
210-398 9 San Antonio TX 9533 SOUTHWESTERN BELL 566   2009-05-16   
210-509 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-520 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-521 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-522 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-523 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-523 0 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-523 1 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-523 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-523 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-523 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-523 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-523 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-523 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-523 8 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-543 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-543 0 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-543 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-543 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-543 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-543 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-543 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-543 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-543 8 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-543 9 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-586 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-596 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-596 5 San Antonio TX 9533 SOUTHWESTERN BELL 566   2015-02-27   
210-624 0 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-624 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-624 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-624 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-647 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-647 0 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-647 1 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-647 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-647 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-647 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-647 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-647 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-647 8 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-647 9 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-680 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-681 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-682 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-682 1 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-682 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-682 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-682 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-682 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-684 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-688 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-688 0 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-688 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-688 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-688 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-688 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-688 9 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-703 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-706 A San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-706 1 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-706 2 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-706 3 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-706 4 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-706 5 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-706 6 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-706 7 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-706 8 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-706 9 San Antonio TX 9533 SOUTHWESTERN BELL 566      
210-766 A San Antonio TX 9533 SOUTHWESTERN BELL 566      

1 2 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.