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.
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OCN: 506J TWILIO INTERNATIONAL, INC.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
434-437 A Charlottesville VA CHVLVAXAXRY  928      
434-437 4 Charlottesville VA CHVLVAXAXRY  928   2022-04-11   
434-895 A Lynchburg VA LYBGVACHX3Y  250      
434-895 8 Lynchburg VA LYBGVACHX3Y  250   2021-04-23   
442-524 A Victorville: Adelanto DA CA VTVLCAXAX4Y  730      
442-524 5 Victorville: Adelanto DA CA VTVLCAXAX4Y  730   2020-11-22   
442-895 A Palm Springs CA PLSPCAXG01Z  973      
442-895 8 Palm Springs CA PLSPCAXG01Z  973   2022-01-24   
445-895 A Philadelphia Zone 1 PA PHLAPAFGX2Y  228      
445-895 8 Philadelphia Zone 1 PA PHLAPAFGX2Y  228   2020-11-14   
447-417 A Springfield IL SPFDILESX3Y  374      
447-417 4 Springfield IL SPFDILESX3Y  374   2022-04-16   
447-487 A Quincy IL JCVLILXCX4X  376      
447-487 4 Quincy IL JCVLILXCX4X  376   2022-04-16   
447-497 A Mattoon IL MTONILXCXFX  976      
447-497 4 Mattoon IL MTONILXCXFX  976   2022-04-16   
447-895 A Champaign-Urbana IL CHMPILCPXIY  370      
447-895 8 Champaign-Urbana IL CHMPILCPXIY  370   2022-01-24   
448-895 A Panama City FL PNCYFLMA13Z  45009      
448-895 8 Panama City FL PNCYFLMA13Z  45009   2022-03-26   
458-895 A Eugene OR EUGNOR53X5Y  670      
458-895 8 Eugene OR EUGNOR53X5Y  670   2020-12-21   
463-895 A Indianapolis IN IPLSIN01XPZ  336      
463-895 8 Indianapolis IN IPLSIN01XPZ  336   2021-05-23   
469-895 A Dallas TX DLLRTXVM0MD  552      
469-895 8 Dallas TX DLLRTXVM0MD  552   2020-10-10   
470-895 A Atlanta GA ATLNGABU11Z  438      
470-895 8 Atlanta GA ATLNGABU11Z  438   2020-11-14   
478-895 A Macon GA MACNGAMTXTY  446      
478-895 8 Macon GA MACNGAMTXTY  446   2022-01-24   
479-584 A Russellville AR RLVLARXACMD  528   2024-12-27   
479-584 0 Russellville AR RLVLARXACMD  528   2024-12-27   
479-895 A Fort Smith AR FTSMARSUXHX  526      
479-895 8 Fort Smith AR FTSMARSUXHX  526   2022-02-26   
480-801 A Phoenix AZ PHNXAZMAXZY  666      
480-801 8 Phoenix AZ PHNXAZMAXZY  666   2020-11-30   
501-643 A Little Rock AR LTRKARFRXKZ  528      
501-643 6 Little Rock AR LTRKARFRXKZ  528   2021-07-21   
501-714 A Greenbrier AR GNBRARXA0MD  528   2024-12-27   
501-714 0 Greenbrier AR GNBRARXA0MD  528   2024-12-27   
502-885 A Louisville KY LSVLKYAP51Z  462      
502-885 8 Louisville KY LSVLKYAP51Z  462   2021-07-07   
504-892 A New Orleans LA NWORLAMAYFX  490      
504-892 8 New Orleans LA NWORLAMAYFX  490   2021-11-18   
505-895 A Albuquerque NM ALBQNMMAXYY  664      
505-895 8 Albuquerque NM ALBQNMMAXYY  664   2020-12-21   
507-742 A Rochester MN ROCHMNROX1Y  620      
507-742 8 Rochester MN ROCHMNROX1Y  620   2020-12-21   
509-601 A Spokane WA SPKNWA01XIY  676      
509-601 6 Spokane WA SPKNWA01XIY  676   2020-12-21   

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

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