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: 792K CHARTER IP ENABLED SERVICES, 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 38 39 40 41 42 43 44 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
402-234 1 Louisville NE HSNGNE241MD  958   2008-09-15   
402-277 7 Wahoo NE HSNGNE241MD  958   2009-03-07   
402-298 4 Plattsmouth NE HSNGNE241MD  958   2008-08-01   
402-521 2 Ashland NE HSNGNE241MD  958   2009-03-07   
402-751 4 Juniata NE HSNGNE241MD  958   2008-09-15   
402-752 4 Kenesaw NE HSNGNE241MD  958   2016-05-27   
402-786 4 Waverly NE HSNGNE241MD  958   2009-03-07   
402-789 4 Greenwood NE HSNGNE241MD  958   2008-09-15   
402-806 4 Beatrice NE HSNGNE241MD  958   2008-08-01   
402-834 A Hastings NE HSNGNE241MD  958      
402-834 0 Hastings NE HSNGNE241MD  958   2008-01-12   
402-834 2 Hastings NE HSNGNE241MD  958   2015-10-29   
402-834 3 Hastings NE HSNGNE241MD  958   2011-04-18   
402-834 4 Hastings NE HSNGNE241MD  958   2018-07-08   
402-886 7 Phillips NE HSNGNE241MD  958   2021-04-18   
404-319 8 Atlanta GA   438   2005-12-22   
406-200 7 Billings MT BLNGMT93HMD  650   2014-09-30   
406-219 2 Bozeman MT BZMNMTEF2MD  650   2014-05-28   
406-219 3 Bozeman MT BZMNMTEF2MD  650   2006-12-20   
406-221 7 Butte MT HLNAMTHH5MD  648   2008-08-09   
406-260 4 Kalispell MT KLSLMTAZ1MD  648   2008-06-17   
406-262 7 Havre MT HLNAMTHH5MD  648   2006-03-04   
406-266 0 Townsend MT HLNAMTHH5MD  648   2019-06-14   
406-281 5 Billings MT BLNGMT93HMD  650   2009-03-27   
406-281 6 Billings MT BLNGMT93HMD  650   2009-03-27   
406-281 8 Billings MT BLNGMT93HMD  650   2009-03-27   
406-284 2 Manhattan MT BZMNMTEF2MD  650   2005-06-17   
406-290 5 Columbus MT BLNGMT93HMD  650   2011-03-27   
406-299 2 Butte MT HLNAMTHH5MD  648   2007-01-02   
406-299 3 Butte MT HLNAMTHH5MD  648   2012-03-05   
406-300 A Kalispell MT KLSLMTAZ1MD  648      
406-300 1 Kalispell MT KLSLMTAZ1MD  648   2013-09-13   
406-304 3 Missoula MT MSSLMTEH4MD  648   2016-12-15   
406-307 A Canyon Creek MT   648   2025-05-02   
406-307 1 Canyon Creek MT   648   2025-05-02   
406-309 A Kalispell MT KLSLMTAZ1MD  648      
406-309 2 Kalispell MT KLSLMTAZ1MD  648   2011-12-01   
406-313 1 Boulder MT HLNAMTHH5MD  648   2019-06-14   
406-314 4 Kalispell MT KLSLMTAZ1MD  648   2006-03-04   
406-314 6 Kalispell MT KLSLMTAZ1MD  648   2014-05-13   
406-315 1 Great Falls MT HLNAMTHH5MD  648   2011-03-10   
406-315 2 Great Falls MT HLNAMTHH5MD  648   2011-11-17   
406-315 3 Great Falls MT HLNAMTHH5MD  648   2012-05-06   
406-315 8 Great Falls MT HLNAMTHH5MD  648   2014-04-30   
406-317 1 Missoula MT MSSLMTEH4MD  648   2012-05-06   
406-319 A Polson MT MSSLMTEH4MD  648      
406-319 2 Polson MT MSSLMTEH4MD  648   2006-04-17   
406-330 A Clinton MT MSSLMTEH4MD  648      
406-330 2 Clinton MT MSSLMTEH4MD  648   2006-06-03   
406-332 1 Pablo MT MSSLMTEH4MD  648   2024-03-31   
406-333 2 Livingston MT BZMNMTEF2MD  650   2006-05-17   
406-348 5 Huntley MT   650   2025-04-08   
406-353 1 Harlem MT HLNAMTHH5MD  648   2021-04-23   
406-357 6 Chinook MT HLNAMTHH5MD  648   2021-04-23   
406-361 8 Hamilton MT MSSLMTEH4MD  648   2014-05-05   
406-371 5 Billings MT BLNGMT93HMD  650   2006-12-08   
406-371 7 Billings MT BLNGMT93HMD  650   2014-04-30   
406-375 5 Hamilton MT MSSLMTEH4MD  648   2006-05-17   
406-393 A Somers MT KLSLMTAZ1MD  648      
406-393 2 Somers MT KLSLMTAZ1MD  648   2006-05-21   
406-404 A Bozeman MT BZMNMTEF2MD  650      
406-404 1 Bozeman MT BZMNMTEF2MD  650   2012-06-01   
406-415 A Deer Lodge MT HLNAMTHH5MD  648      
406-415 1 Deer Lodge MT HLNAMTHH5MD  648   2010-06-07   
406-420 A Bigfork MT KLSLMTAZ1MD  648      
406-420 2 Bigfork MT KLSLMTAZ1MD  648   2006-04-21   
406-422 A Helena MT HLNAMTHH5MD  648      
406-422 0 Helena MT HLNAMTHH5MD  648   2006-03-14   
406-422 1 Helena MT HLNAMTHH5MD  648   2007-10-19   
406-422 4 Helena MT HLNAMTHH5MD  648   2008-04-09   
406-422 5 Helena MT HLNAMTHH5MD  648   2005-05-06   
406-445 3 Red Lodge MT BLNGMT93HMD  650   2011-03-27   
406-468 6 Cascade MT HLNAMTHH5MD  648   2020-09-05   
406-493 A Missoula MT MSSLMTEH4MD  648      
406-493 0 Missoula MT MSSLMTEH4MD  648   2006-06-19   
406-493 1 Missoula MT MSSLMTEH4MD  648   2007-10-01   
406-493 6 Missoula MT MSSLMTEH4MD  648   2005-08-13   
406-502 A Helena MT HLNAMTHH5MD  648      
406-502 1 Helena MT HLNAMTHH5MD  648   2012-06-01   
406-502 2 Helena MT HLNAMTHH5MD  648   2014-04-30   
406-513 A Helena MT HLNAMTHH5MD  648      
406-513 1 Helena MT HLNAMTHH5MD  648   2008-05-30   
406-534 A Billings MT BLNGMT93HMD  650      
406-534 1 Billings MT BLNGMT93HMD  650   2006-03-26   
406-534 2 Billings MT BLNGMT93HMD  650   2005-04-29   
406-534 3 Billings MT BLNGMT93HMD  650   2005-10-22   
406-534 4 Billings MT BLNGMT93HMD  650   2007-09-21   
406-534 6 Billings MT BLNGMT93HMD  650   2010-06-27   
406-534 8 Billings MT BLNGMT93HMD  650   2014-03-24   
406-540 4 Missoula MT MSSLMTEH4MD  648   2014-05-28   
406-551 2 Bozeman MT BZMNMTEF2MD  650   2006-12-08   
406-563 0 Anaconda MT HLNAMTHH5MD  648   2006-04-09   
406-565 5 Butte MT HLNAMTHH5MD  648   2005-05-13   
406-571 A Finley Point MT KLSLMTAZ1MD  648      
406-571 2 Finley Point MT KLSLMTAZ1MD  648   2006-04-21   
406-577 2 Bozeman MT BZMNMTEF2MD  650   2011-07-28   
406-601 1 Billings MT BLNGMT93HMD  650   2016-11-24   
406-602 7 Bozeman MT BZMNMTEF2MD  650   2021-06-23   
406-622 9 Fort Benton MT HLNAMTHH5MD  648   2017-10-08   
406-624 6 Bozeman MT BZMNMTEF2MD  650   2005-06-12   

<< 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 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.