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.

OCN: 6114 LEVEL 3 COMMUNICATIONS, LLC - 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 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
346-231 5 Houston TX HSTQTX02DS4  560   2015-08-13   
346-231 6 Houston TX HSTQTX02DS4  560   2015-08-13   
346-231 7 Houston TX HSTQTX02DS4  560   2015-08-13   
346-231 8 Houston TX HSTQTX02DS4  560   2015-08-14   
346-231 9 Houston TX HSTQTX02DS4  560   2015-08-14   
346-237 5 Houston TX HSTQTX02DS4  560   2017-08-05   
346-237 8 Houston TX HSTQTX02DS4  560   2017-08-05   
346-241 3 Houston TX HSTQTX02DS4  560   2016-09-15   
346-241 4 Houston TX HSTQTX02DS4  560   2016-09-15   
346-257 A Katy TX HSTQTX02DS4  560      
346-257 2 Katy TX HSTQTX02DS4  560   2017-07-06   
346-257 6 Katy TX HSTQTX02DS4  560   2017-10-14   
346-279 2 Sugar Land TX HSTQTX02DS4  560   2018-02-04   
346-293 7 Houston TX HSTQTX02DS4  560   2018-10-17   
346-307 9 Katy TX HSTQTX02DS4  560   2016-01-22   
346-308 6 Houston TX HSTQTX02DS4  560   2015-12-06   
346-308 9 Houston TX HSTQTX02DS4  560   2015-12-06   
346-309 3 Sugar Land TX HSTQTX02DS4  560   2016-02-07   
346-319 6 Houston TX HSTQTX02DS4  560   2016-02-07   
346-320 0 Houston TX HSTQTX02DS4  560   2017-08-05   
346-320 5 Houston TX HSTQTX02DS4  560   2016-10-15   
346-335 0 Houston TX HSTQTX02DS4  560   2018-07-07   
346-335 4 Houston TX HSTQTX02DS4  560   2018-06-02   
346-335 9 Houston TX HSTQTX02DS4  560   2018-10-13   
346-354 2 Houston TX HSTQTX02DS4  560   2018-12-01   
346-356 A Houston TX HSTQTX02DS4  560      
346-356 0 Houston TX HSTQTX02DS4  560   2018-09-13   
346-356 1 Houston TX HSTQTX02DS4  560   2018-09-13   
346-356 2 Houston TX HSTQTX02DS4  560   2018-09-13   
346-356 3 Houston TX HSTQTX02DS4  560   2018-09-13   
346-356 4 Houston TX HSTQTX02DS4  560   2018-09-13   
346-356 5 Houston TX HSTQTX02DS4  560   2018-09-13   
346-356 6 Houston TX HSTQTX02DS4  560   2018-09-13   
346-356 7 Houston TX HSTQTX02DS4  560   2018-09-13   
346-356 8 Houston TX HSTQTX02DS4  560   2018-09-13   
346-356 9 Houston TX HSTQTX02DS4  560   2018-09-13   
346-358 5 League City TX HSTQTX02DS4  560   2019-03-22   
346-382 9 Spring TX HSTQTX02DS4  560   2019-05-03   
346-426 0 Houston TX HSTQTX02DS4  560   2020-04-09   
346-426 1 Houston TX HSTQTX02DS4  560   2020-04-09   
346-427 4 Apollo TX HSTQTX02DS4  560   2021-01-08   
346-427 5 Apollo TX HSTQTX02DS4  560   2021-01-08   
346-427 6 Apollo TX HSTQTX02DS4  560   2021-01-08   
346-427 7 Apollo TX HSTQTX02DS4  560   2021-01-08   
346-444 1 Houston TX HSTQTX02DS4  560   2014-09-01   
346-444 2 Houston TX HSTQTX02DS4  560   2014-09-01   
346-444 3 Houston TX HSTQTX02DS4  560   2014-09-01   
346-444 7 Houston TX HSTQTX02DS4  560   2014-09-01   
346-444 8 Houston TX HSTQTX02DS4  560   2014-09-01   
346-444 9 Houston TX HSTQTX02DS4  560   2014-09-01   

<< 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 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 >>

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.