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.

Houston Suburban, TX

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
281-929 4 HSTNTXWLRP0  9533 SOUTHWESTERN BELL 560      
281-929 5 HSTNTXWLRP0  9533 SOUTHWESTERN BELL 560      
281-929 6 HSTNTXWLRP0  9533 SOUTHWESTERN BELL 560      
281-929 7 HSTATX750MD  829J PAETEC ITEL, LLC 560   2013-12-06   
281-929 8 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2013-10-08   
281-929 9 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2013-10-08   
281-931 A HSTNTXAIDS0  9533 SOUTHWESTERN BELL 560      
281-933 A HSTNTXALDS0  9533 SOUTHWESTERN BELL 560      
281-935 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
281-940 A HSTNTXYADS5  903C ONVOY, LLC - TX 560      
281-940 0 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
281-940 1 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-10-23   
281-940 2 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-10-23   
281-940 3 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-10-23   
281-940 4 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-02-24   
281-940 5 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-02-24   
281-940 6 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-02-24   
281-940 7 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2007-08-31   
281-940 8 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2007-09-24   
281-940 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2010-08-15   
281-960 A HSTDTXBGBMD  5562 METROPCS, INC. 560      
281-960 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
281-960 1 HSTDTXBGBMD  5562 METROPCS, INC. 560      
281-960 2 HSTDTXBGBMD  5562 METROPCS, INC. 560      
281-960 3 HSTDTXBGBMD  5562 METROPCS, INC. 560      
281-960 4 HSTDTXBGBMD  5562 METROPCS, INC. 560      
281-960 5 HSTDTXBGBMD  5562 METROPCS, INC. 560      
281-960 6 HSTDTXBGBMD  5562 METROPCS, INC. 560      
281-960 7 HSTDTXBGBMD  5562 METROPCS, INC. 560      
281-960 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
281-960 9 HSTDTXBGBMD  5562 METROPCS, INC. 560      
281-965 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
281-965 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2013-10-06   
281-965 1 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2013-10-06   
281-965 2 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2013-10-06   
281-965 3 HSTNTX01X7X  516C AT&T CORP. 560   2013-07-30   
281-965 4 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2013-10-06   
281-965 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2013-10-06   
281-965 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2013-10-06   
281-965 7 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2013-10-06   
281-965 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2013-10-06   
281-965 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2013-10-06   
281-966 A HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-966 0 HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-966 1 HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-966 2 HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-966 3 HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-966 4 HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-966 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2012-01-06   
281-966 6 HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-966 7 HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-966 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2012-01-06   
281-966 9 HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-971 A HSTQTX02XMD  8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 560      
281-971 0 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-971 1 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-971 2 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-971 3 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-971 4 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-971 5 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-971 6 HSTQTX02XMD  8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 560      
281-971 7 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2010-09-28   
281-971 8 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2010-09-28   
281-971 9 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-977 A HSTNTXPB6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 560      
281-977 0 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2024-12-01   
281-977 1 HSTNTXPB6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 560      
281-977 2 HSTNTXPB6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 560      
281-977 3 HSTNTXPB6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 560      
281-977 4 HSTNTXPB6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 560      
281-977 5 HSTNTXPB6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 560      
281-977 6 HSTNTXPB6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 560      
281-977 7 HSTNTXPB6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 560      
281-977 8 HSTNTXPB6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 560      
281-977 9 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2024-12-07   
281-978 A HSTNTXAIDS0  9533 SOUTHWESTERN BELL 560      
281-978 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2010-08-27   
281-978 1 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2010-08-27   
281-978 2 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2010-12-06   
281-978 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2009-10-13   
281-978 4 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2011-04-30   
281-978 5 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2009-10-13   
281-978 6 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2009-10-13   
281-978 7 HSTNTXAIDS0  9533 SOUTHWESTERN BELL 560      
281-978 8 HSTNTXAIDS0  9533 SOUTHWESTERN BELL 560      
281-978 9 HSTNTXAIDS0  9533 SOUTHWESTERN BELL 560      
281-983 A HSTNTXALDS0  9533 SOUTHWESTERN BELL 560      
281-985 A HSTNTXADRP0  9533 SOUTHWESTERN BELL 560      
281-985 0 HSTNTXADRP0  9533 SOUTHWESTERN BELL 560      
281-985 1 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2012-11-11   
281-985 2 HSTNTXADRP0  9533 SOUTHWESTERN BELL 560      
281-985 3 HSTNTXADRP0  9533 SOUTHWESTERN BELL 560      
281-985 4 HSTNTXADRP0  9533 SOUTHWESTERN BELL 560      
281-985 5 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2012-11-11   
281-985 6 HSTNTXADRP0  9533 SOUTHWESTERN BELL 560      
281-985 7 HSTNTXADRP0  9533 SOUTHWESTERN BELL 560      
281-985 8 HSTNTXADRP0  9533 SOUTHWESTERN BELL 560      
281-985 9 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2012-11-11   
281-986 A HSTNTXADRP0  9533 SOUTHWESTERN BELL 560      
281-986 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2012-10-09   

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

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.