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: AUSWTXGXBMD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-276 4 Austin TX 6529 T-MOBILE USA, INC. 558   2005-08-26   
512-284 5 Austin TX 6529 T-MOBILE USA, INC. 558   2005-04-04   
512-284 6 Austin TX 6529 T-MOBILE USA, INC. 558   2005-04-04   
512-287 A Austin TX 6529 T-MOBILE USA, INC. 558      
512-287 0 Austin TX 6529 T-MOBILE USA, INC. 558   2007-02-11   
512-287 1 Austin TX 6529 T-MOBILE USA, INC. 558   2007-02-11   
512-287 9 Austin TX 6529 T-MOBILE USA, INC. 558   2007-01-12   
512-290 A Rockdale TX 5562 METROPCS, INC. 558   2025-02-07   
512-290 1 Rockdale TX 6529 T-MOBILE USA, INC. 558   2025-03-10   
512-290 2 Rockdale TX 6529 T-MOBILE USA, INC. 558   2025-03-10   
512-290 3 Rockdale TX 6529 T-MOBILE USA, INC. 558   2025-03-10   
512-290 4 Rockdale TX 6529 T-MOBILE USA, INC. 558   2025-05-01   
512-290 5 Rockdale TX 6529 T-MOBILE USA, INC. 558   2025-05-01   
512-290 6 Rockdale TX 5562 METROPCS, INC. 558   2017-03-17   
512-290 7 Rockdale TX 5562 METROPCS, INC. 558   2017-03-17   
512-290 8 Rockdale TX 5562 METROPCS, INC. 558   2017-03-17   
512-293 A Austin TX 6529 T-MOBILE USA, INC. 558      
512-294 A Austin TX 5562 METROPCS, INC. 558      
512-294 0 Austin TX 6529 T-MOBILE USA, INC. 558      
512-294 1 Austin TX 6529 T-MOBILE USA, INC. 558      
512-294 3 Austin TX 6529 T-MOBILE USA, INC. 558      
512-294 4 Austin TX 6529 T-MOBILE USA, INC. 558      
512-294 5 Austin TX 6529 T-MOBILE USA, INC. 558      
512-294 6 Austin TX 6529 T-MOBILE USA, INC. 558      
512-294 7 Austin TX 6529 T-MOBILE USA, INC. 558      
512-294 8 Austin TX 6529 T-MOBILE USA, INC. 558      
512-294 9 Austin TX 6529 T-MOBILE USA, INC. 558      
512-296 A Austin TX 5562 METROPCS, INC. 558      
512-296 0 Austin TX 6529 T-MOBILE USA, INC. 558      
512-296 1 Austin TX 6529 T-MOBILE USA, INC. 558      
512-296 3 Austin TX 6529 T-MOBILE USA, INC. 558      
512-296 4 Austin TX 6529 T-MOBILE USA, INC. 558      
512-296 5 Austin TX 6529 T-MOBILE USA, INC. 558      
512-296 6 Austin TX 6529 T-MOBILE USA, INC. 558      
512-296 7 Austin TX 6529 T-MOBILE USA, INC. 558      
512-296 8 Austin TX 6529 T-MOBILE USA, INC. 558      
512-296 9 Austin TX 6529 T-MOBILE USA, INC. 558      
512-297 A Austin TX 5562 METROPCS, INC. 558      
512-297 0 Austin TX 6529 T-MOBILE USA, INC. 558      
512-297 1 Austin TX 6529 T-MOBILE USA, INC. 558      
512-297 3 Austin TX 6529 T-MOBILE USA, INC. 558      
512-297 4 Austin TX 6529 T-MOBILE USA, INC. 558      
512-297 5 Austin TX 6529 T-MOBILE USA, INC. 558      
512-297 6 Austin TX 6529 T-MOBILE USA, INC. 558      
512-297 7 Austin TX 6529 T-MOBILE USA, INC. 558      
512-297 8 Austin TX 6529 T-MOBILE USA, INC. 558      
512-297 9 Austin TX 6529 T-MOBILE USA, INC. 558      
512-299 0 Austin TX 6529 T-MOBILE USA, INC. 558   2004-03-14   
512-299 1 Austin TX 6529 T-MOBILE USA, INC. 558   2004-05-16   
512-299 2 Austin TX 6529 T-MOBILE USA, INC. 558   2004-05-16   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 >>

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.