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.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
417-630 0 Marshfield MO BASNMOXAX5X  522   2010-06-13   
417-637 6 Greenfield MO BASNMOXAX5X  522   2010-06-13   
417-638 6 Stark City MO SPFDMOTLXMX  522   2010-07-18   
417-649 5 Carl Junction MO SPFDMOTLXMX  522   2010-06-13   
417-671 8 Cassville MO BASNMOXAX5X  522   2010-06-13   
417-685 3 Willard MO SPFDMOTLXMX  522   2010-06-13   
417-688 1 Lowry City MO   522   2025-05-08   
417-717 9 Webb City MO SPFDMOTLXMX  522   2010-06-13   
417-719 4 Springfield MO SPFDMOTLXMX  522   2011-05-03   
417-720 A Springfield MO SPFDMOTLXMX  522      
417-720 1 Springfield MO SPFDMOTLXMX  522   2012-09-01   
417-720 4 Springfield MO SPFDMOTLXMX  522   2013-04-20   
417-736 6 Strafford MO SPFDMOTLXMX  522   2010-06-13   
417-739 6 Kimberling City MO BASNMOXAX5X  522   2010-06-13   
417-755 7 Springfield MO SPFDMOTLXMX  522   2015-04-09   
417-803 A Miller MO SPFDMOTLXMX  522      
417-803 1 Miller MO SPFDMOTLXMX  522   2018-05-10   
417-805 0 Golden City MO BASNMOXAX5X  522   2010-06-13   
417-835 6 Exeter MO BASNMOXAX5X  522   2010-06-13   
417-843 7 Liberal MO BASNMOXAX5X  522   2010-07-18   
417-845 9 Anderson MO SPFDMOTLXMX  522   2017-01-09   
417-929 6 Rogersville MO SPFDMOTLXMX  522   2010-06-13   
417-935 6 Seymour MO BASNMOXAX5X  522   2010-06-13   
417-939 A Greenfield MO BASNMOXAX5X  522      
417-952 8 Joplin MO SPFDMOTLXMX  522   2021-04-24   
417-994 0 Walnut Grove MO SPFDMOTLXMX  522   2010-06-13   
447-444 3 Bondville IL CHMPILCPXHX  370   2022-06-25   
478-559 A Eastman GA MACNGAMTXXX  446      
478-559 1 Eastman GA MACNGAMTXXX  446   2010-04-23   
480-625 A Phoenix AZ PHNXAZMAXUX  666      
480-625 1 Phoenix AZ PHNXAZMAXUX  666   2013-01-26   
480-646 A Phoenix AZ PHNXAZMAXUX  666      
480-646 1 Phoenix AZ PHNXAZMAXUX  666   2011-02-18   
480-845 A Phoenix AZ PHNXAZMAXUX  666      
480-845 1 Phoenix AZ PHNXAZMAXUX  666   2011-11-11   
480-877 8 Phoenix AZ PHNXAZMAXUX  666   2018-12-16   
480-935 A Phoenix AZ PHNXAZMAXUX  666      
480-935 1 Phoenix AZ PHNXAZMAXUX  666   2017-03-12   
507-299 6 Gaylord MN MPLSMNDTX0Y  628   2010-05-15   
507-419 A Le Center MN MPLSMNDTX0Y  628      
507-419 6 Le Center MN MPLSMNDTX0Y  628   2010-05-15   
507-593 0 Le Sueur MN MPLSMNDTX0Y  628   2010-05-15   
507-778 A Arlington MN MPLSMNDTX0Y  628      
507-778 0 Arlington MN MPLSMNDTX0Y  628   2010-05-15   
507-868 A Henderson MN MPLSMNDTX0Y  628      
507-868 0 Henderson MN MPLSMNDTX0Y  628   2010-05-15   
507-953 A Montgomery MN MPLSMNDTX0Y  628      
507-953 0 Montgomery MN MPLSMNDTX0Y  628   2010-05-15   
520-341 3 Nogales AZ TCSNAZMAXRX  668   2017-05-28   
520-415 A Nogales AZ TCSNAZMAXRX  668      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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