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: 612K CSC VOICE, LLC

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
325-617 7 San Angelo TX   961   2010-09-18   
325-701 A Abilene TX ABLNTXORXKX  550      
325-701 4 Abilene TX   550   2006-07-31   
325-701 7 Abilene TX   550   2010-09-18   
325-701 8 Abilene TX   550   2014-07-30   
325-701 9 Abilene TX   550   2013-04-14   
325-703 A San Angelo TX SANGTXXAXDX  961      
325-703 1 San Angelo TX   961   2013-12-29   
325-703 2 San Angelo TX   961   2013-12-29   
325-703 3 San Angelo TX   961   2013-12-29   
325-703 4 San Angelo TX   961   2013-12-29   
325-703 5 San Angelo TX   961   2013-12-29   
325-703 6 San Angelo TX   961   2013-12-29   
325-704 A Abilene TX ABLNTXORXKX  550      
325-704 1 Abilene TX   550   2014-01-16   
325-704 2 Abilene TX   550   2014-01-16   
325-704 3 Abilene TX   550   2014-01-16   
325-704 4 Abilene TX   550   2014-01-16   
325-704 5 Abilene TX   550   2014-01-16   
325-704 6 Abilene TX   550   2014-01-16   
325-747 A San Angelo TX SANGTXXAXDX  961      
325-910 8 Brady TX   961   2024-04-07   
325-933 4 Sweetwater TX   550   2006-07-31   
325-933 5 Sweetwater TX   550   2005-02-18   
325-933 6 Sweetwater TX   550   2014-03-20   
325-936 7 Roscoe TX   550   2022-12-13   
329-241 A Poughkeepsie NY PGHKNYSHX4Z  133   2026-01-01   
329-241 4 Poughkeepsie NY PGHKNYSHX4Z  133   2026-01-01   
330-709 A Mantua OH AKRNOH2557Z  325      
330-709 1 Mantua OH   325   2024-05-12   
330-902 9 Ravenna OH   325   2024-04-07   
332-298 A New York City Zone 01 NY NYCMNYBXX1X  132   2025-09-26   
332-298 4 New York City Zone 01 NY NYCMNYBXX1X  132   2025-09-26   
346-548 8 Baytown TX   560   2022-05-20   
346-734 4 Beach City TX   560   2024-03-04   
346-910 6 Mont Belvieu TX   560   2022-05-20   
347-202 4 New York City Zone 05 NY WHPLNYGR1MD  132   2006-03-14   
347-202 5 New York City Zone 05 NY WHPLNYGR1MD  132   2006-03-14   
347-202 7 New York City Zone 05 NY WHPLNYGR1MD  132   2006-03-30   
347-202 8 New York City Zone 05 NY WHPLNYGR1MD  132   2006-03-30   
347-202 9 New York City Zone 05 NY WHPLNYGR1MD  132   2006-03-30   
347-221 0 New York City Zone 06 NY WHPLNYGR1MD  132   2007-01-22   
347-221 1 New York City Zone 06 NY WHPLNYGR1MD  132   2007-01-22   
347-240 A New York City Zone 06 NY WHPLNYGR1MD  132      
347-240 0 New York City Zone 06 NY WHPLNYGR1MD  132   2007-02-10   
347-240 1 New York City Zone 06 NY WHPLNYGR1MD  132   2007-02-10   
347-240 2 New York City Zone 06 NY WHPLNYGR1MD  132   2007-02-10   
347-240 3 New York City Zone 06 NY WHPLNYGR1MD  132   2007-02-10   
347-240 4 New York City Zone 06 NY WHPLNYGR1MD  132   2007-02-10   
347-240 5 New York City Zone 06 NY WHPLNYGR1MD  132   2007-02-10   
347-240 6 New York City Zone 06 NY WHPLNYGR1MD  132   2007-02-10   
347-240 7 New York City Zone 06 NY WHPLNYGR1MD  132   2007-02-10   
347-240 8 New York City Zone 06 NY WHPLNYGR1MD  132   2007-02-10   
347-240 9 New York City Zone 06 NY WHPLNYGR1MD  132   2007-02-10   
347-254 6 New York City Zone 07 NY WHPLNYGR1MD  132   2005-04-22   
347-269 5 New York City Zone 03 NY WHPLNYGR1MD  132   2008-02-06   
347-269 6 New York City Zone 03 NY WHPLNYGR1MD  132   2008-02-06   
347-269 7 New York City Zone 03 NY WHPLNYGR1MD  132   2008-02-06   
347-269 8 New York City Zone 03 NY WHPLNYGR1MD  132   2008-02-06   
347-270 A New York City Zone 03 NY WHPLNYGR1MD  132      
347-270 0 New York City Zone 03 NY WHPLNYGR1MD  132   2007-04-29   
347-270 1 New York City Zone 03 NY WHPLNYGR1MD  132   2007-04-29   
347-270 2 New York City Zone 03 NY WHPLNYGR1MD  132   2007-04-29   
347-270 3 New York City Zone 03 NY WHPLNYGR1MD  132   2007-04-29   
347-270 4 New York City Zone 03 NY WHPLNYGR1MD  132   2007-04-29   
347-270 5 New York City Zone 03 NY WHPLNYGR1MD  132   2007-04-29   
347-270 9 New York City Zone 03 NY WHPLNYGR1MD  132   2008-03-20   
347-271 3 New York City Zone 03 NY WHPLNYGR1MD  132   2008-02-06   
347-271 4 New York City Zone 03 NY WHPLNYGR1MD  132   2008-02-06   
347-271 5 New York City Zone 03 NY WHPLNYGR1MD  132   2007-06-01   
347-271 6 New York City Zone 03 NY WHPLNYGR1MD  132   2007-06-01   
347-271 7 New York City Zone 03 NY WHPLNYGR1MD  132   2007-06-01   
347-271 8 New York City Zone 03 NY WHPLNYGR1MD  132   2007-06-01   
347-271 9 New York City Zone 03 NY WHPLNYGR1MD  132   2007-06-01   
347-275 A New York City Zone 05 NY HCVLNYAHDS5  132      
347-275 1 New York City Zone 05 NY WHPLNYGR1MD  132   2004-10-29   
347-275 2 New York City Zone 05 NY WHPLNYGR1MD  132   2004-10-29   
347-275 3 New York City Zone 05 NY WHPLNYGR1MD  132   2004-10-29   
347-275 4 New York City Zone 05 NY WHPLNYGR1MD  132   2004-10-29   
347-275 5 New York City Zone 05 NY WHPLNYGR1MD  132   2004-10-29   
347-275 6 New York City Zone 05 NY HCVLNYAHDS5  132   2004-07-05   
347-275 7 New York City Zone 05 NY HCVLNYAHDS5  132   2004-07-05   
347-275 8 New York City Zone 05 NY HCVLNYAHDS5  132   2004-07-05   
347-275 9 New York City Zone 05 NY HCVLNYAHDS5  132   2004-07-05   
347-281 4 New York City Zone 04 NY WHPLNYGR1MD  132   2007-08-06   
347-281 5 New York City Zone 04 NY WHPLNYGR1MD  132   2007-08-06   
347-281 8 New York City Zone 04 NY WHPLNYGR1MD  132   2007-10-12   
347-281 9 New York City Zone 04 NY WHPLNYGR1MD  132   2007-10-12   
347-284 3 New York City Zone 03 NY WHPLNYGR1MD  132   2005-05-10   
347-284 4 New York City Zone 03 NY WHPLNYGR1MD  132   2005-05-10   
347-284 5 New York City Zone 03 NY WHPLNYGR1MD  132   2005-05-10   
347-293 5 New York City Zone 04 NY WHPLNYGR1MD  132   2004-01-06   
347-293 6 New York City Zone 04 NY WHPLNYGR1MD  132   2004-01-23   
347-293 7 New York City Zone 04 NY WHPLNYGR1MD  132   2004-01-23   
347-293 8 New York City Zone 04 NY WHPLNYGR1MD  132   2004-08-23   
347-295 0 New York City Zone 06 NY WHPLNYGR1MD  132   2008-05-18   
347-295 1 New York City Zone 06 NY WHPLNYGR1MD  132   2008-05-18   
347-295 2 New York City Zone 06 NY WHPLNYGR1MD  132   2008-05-18   
347-295 3 New York City Zone 06 NY WHPLNYGR1MD  132   2008-05-18   
347-297 2 New York City Zone 03 NY WHPLNYGR1MD  132   2004-11-15   

<< 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 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.