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: DLLSTXALDS4

<< 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 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
903-307 7 Sulphur Springs TX 903C ONVOY, LLC - TX 552   2012-12-13   
903-308 1 Emory TX 903C ONVOY, LLC - TX 552   2012-12-17   
903-308 3 Emory TX 903C ONVOY, LLC - TX 552   2012-07-06   
903-308 5 Emory TX 903C ONVOY, LLC - TX 552   2013-02-02   
903-326 2 Rice TX 903C ONVOY, LLC - TX 552   2008-10-10   
903-326 6 Rice TX 903C ONVOY, LLC - TX 552   2016-04-11   
903-326 7 Rice TX 903C ONVOY, LLC - TX 552   2016-04-11   
903-326 8 Rice TX 903C ONVOY, LLC - TX 552   2009-03-08   
903-329 2 Roane TX 903C ONVOY, LLC - TX 552   2016-04-04   
903-329 3 Roane TX 903C ONVOY, LLC - TX 552   2016-04-04   
903-329 4 Roane TX 903C ONVOY, LLC - TX 552   2016-07-29   
903-329 6 Roane TX 903C ONVOY, LLC - TX 552   2020-07-07   
903-345 1 Roane TX 903C ONVOY, LLC - TX 552   2012-07-06   
903-345 3 Roane TX 903C ONVOY, LLC - TX 552   2013-02-03   
903-345 8 Roane TX 903C ONVOY, LLC - TX 552   2009-03-08   
903-354 2 Emhouse TX 903C ONVOY, LLC - TX 552   2013-02-02   
903-354 3 Emhouse TX 903C ONVOY, LLC - TX 552   2012-07-06   
903-354 7 Emhouse TX 903C ONVOY, LLC - TX 552   2009-03-07   
903-354 8 Emhouse TX 903C ONVOY, LLC - TX 552   2011-11-26   
903-364 3 Whitewright TX 903C ONVOY, LLC - TX 552   2013-02-03   
903-364 6 Whitewright TX 903C ONVOY, LLC - TX 552   2012-07-06   
903-364 7 Whitewright TX 903C ONVOY, LLC - TX 552   2009-03-08   
903-364 8 Whitewright TX 903C ONVOY, LLC - TX 552   2011-07-29   
903-366 7 Commerce TX 903C ONVOY, LLC - TX 552   2012-06-02   
903-367 0 Ladonia TX 903C ONVOY, LLC - TX 552   2016-04-01   
903-367 2 Ladonia TX 903C ONVOY, LLC - TX 552   2012-12-17   
903-378 6 Honey Grove TX 903C ONVOY, LLC - TX 552   2008-08-08   
903-378 8 Honey Grove TX 903C ONVOY, LLC - TX 552   2010-11-08   
903-378 9 Honey Grove TX 903C ONVOY, LLC - TX 552   2011-07-04   
903-385 A Edgewood TX 903C ONVOY, LLC - TX 552      
903-385 7 Edgewood TX 903C ONVOY, LLC - TX 552   2008-09-20   
903-385 8 Edgewood TX 903C ONVOY, LLC - TX 552   2012-07-06   
903-395 5 Cooper TX 903C ONVOY, LLC - TX 552   2013-01-10   
903-395 7 Cooper TX 903C ONVOY, LLC - TX 552   2012-06-02   
903-408 3 Greenville TX 903C ONVOY, LLC - TX 552   2016-03-21   
903-408 6 Greenville TX 903C ONVOY, LLC - TX 552   2016-03-21   
903-412 1 Shirley TX 903C ONVOY, LLC - TX 552   2012-12-17   
903-412 2 Shirley TX 903C ONVOY, LLC - TX 552   2016-04-14   
903-412 3 Shirley TX 903C ONVOY, LLC - TX 552   2016-04-14   
903-418 0 Detroit TX 903C ONVOY, LLC - TX 552   2019-07-10   
903-418 2 Detroit TX 903C ONVOY, LLC - TX 552   2020-08-17   
903-418 3 Detroit TX 903C ONVOY, LLC - TX 552   2020-08-17   
903-418 4 Detroit TX 903C ONVOY, LLC - TX 552   2020-08-17   
903-418 5 Detroit TX 903C ONVOY, LLC - TX 552   2021-02-14   
903-418 7 Detroit TX 903C ONVOY, LLC - TX 552   2021-02-03   
903-418 8 Detroit TX 903C ONVOY, LLC - TX 552   2021-02-03   
903-420 3 Emhouse TX 903C ONVOY, LLC - TX 552   2016-04-04   
903-420 4 Emhouse TX 903C ONVOY, LLC - TX 552   2016-04-04   
903-420 9 Emhouse TX 903C ONVOY, LLC - TX 552   2020-08-17   
903-443 4 Ladonia TX 903C ONVOY, LLC - TX 552   2010-11-08   

<< 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 >>

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.