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.

Carrizo Springs, TX

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
830-297 9 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2022-11-12   
830-322 A   6529 T-MOBILE USA, INC. 566      
830-322 0 SNANTX91X3Y  5562 METROPCS, INC. 566      
830-322 1 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566      
830-322 2 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2013-01-19   
830-322 3 SNANTX39DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 566   2012-03-30   
830-322 4   6529 T-MOBILE USA, INC. 566      
830-322 5 SNANTXCA58Z  516C AT&T CORP. 566   2011-03-25   
830-322 6 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566      
830-322 7 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2012-01-20   
830-322 8 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2011-09-19   
830-322 9   6529 T-MOBILE USA, INC. 566      
830-876 A CRSPTXCSDS0  9533 SOUTHWESTERN BELL 566      
830-876 0 CRSPTXCSDS0  9533 SOUTHWESTERN BELL 566      
830-876 1 CRSPTXCSDS0  9533 SOUTHWESTERN BELL 566      
830-876 2 CRSPTXCSDS0  9533 SOUTHWESTERN BELL 566      
830-876 3 CRSPTXCSDS0  9533 SOUTHWESTERN BELL 566      
830-876 4 CRSPTXCSDS0  9533 SOUTHWESTERN BELL 566      
830-876 5 CRSPTXCSDS0  9533 SOUTHWESTERN BELL 566      
830-876 6 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-876 7 CRSPTXCSDS0  9533 SOUTHWESTERN BELL 566      
830-876 8 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-876 9 CRSPTXCSDS0  9533 SOUTHWESTERN BELL 566      

<< 1 2

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.