Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 792K CHARTER IP ENABLED SERVICES, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
406-625 2 Stevensville MT MSSLMTEH4MD  648   2005-10-21   
406-626 6 Frenchtown MT MSSLMTEH4MD  648   2024-10-14   
406-633 4 Laurel MT BLNGMT93HMD  650   2011-03-27   
406-680 0 Malta MT HLNAMTHH5MD  648   2021-04-23   
406-692 6 Yellow Bay MT KLSLMTAZ1MD  648   2014-06-27   
406-702 A Billings MT BLNGMT93HMD  650      
406-702 1 Billings MT BLNGMT93HMD  650   2012-05-06   
406-702 7 Billings MT BLNGMT93HMD  650   2013-12-06   
406-709 A Lakeside MT KLSLMTAZ1MD  648      
406-709 2 Lakeside MT KLSLMTAZ1MD  648      
406-718 1 Darby MT MSSLMTEH4MD  648   2024-09-08   
406-722 7 Alberton MT   648   2025-04-28   
406-730 A Whitefish MT KLSLMTAZ1MD  648      
406-730 1 Whitefish MT KLSLMTAZ1MD  648   2008-05-05   
406-730 2 Whitefish MT KLSLMTAZ1MD  648   2006-04-21   
406-730 8 Whitefish MT KLSLMTAZ1MD  648   2013-11-11   
406-770 3 Great Falls MT HLNAMTHH5MD  648   2008-06-09   
406-812 1 Laurel MT BLNGMT93HMD  650   2019-04-21   
406-813 8 Belgrade MT BZMNMTEF2MD  650   2012-03-13   
406-830 A Missoula MT MSSLMTEH4MD  648      
406-830 3 Missoula MT MSSLMTEH4MD  648   2007-04-08   
406-833 2 Ronan MT MSSLMTEH4MD  648   2024-03-31   
406-839 A Billings MT BLNGMT93HMD  650      
406-839 2 Billings MT BLNGMT93HMD  650   2007-12-02   
406-839 9 Billings MT BLNGMT93HMD  650   2006-11-21   
406-845 A Cut Bank MT HLNAMTHH5MD  648      
406-845 1 Cut Bank MT HLNAMTHH5MD  648   2009-01-02   
406-846 4 Deer Lodge MT HLNAMTHH5MD  648   2007-05-15   
406-866 0 Great Falls MT HLNAMTHH5MD  648   2006-03-13   
406-873 0 Cut Bank MT HLNAMTHH5MD  648   2006-07-03   
406-890 A Kalispell MT KLSLMTAZ1MD  648      
406-890 2 Kalispell MT KLSLMTAZ1MD  648   2007-03-03   
406-894 2 Billings MT BLNGMT93HMD  650   2014-09-30   
406-897 A Columbia Falls MT KLSLMTAZ1MD  648      
406-897 2 Columbia Falls MT KLSLMTAZ1MD  648   2006-04-21   
406-897 5 Columbia Falls MT KLSLMTAZ1MD  648   2015-11-12   
406-898 A Bozeman MT BZMNMTEF2MD  650      
406-898 1 Bozeman MT BZMNMTEF2MD  650   2009-05-22   
406-924 2 Belgrade MT BZMNMTEF2MD  650   2006-12-08   
406-924 6 Belgrade MT BZMNMTEF2MD  650   2005-06-27   
406-925 5 Dillon MT HLNAMTHH5MD  648   2008-11-21   
406-926 A Missoula MT MSSLMTEH4MD  648      
406-926 1 Missoula MT MSSLMTEH4MD  648   2011-03-06   
406-926 2 Missoula MT MSSLMTEH4MD  648   2011-08-21   
406-926 3 Missoula MT MSSLMTEH4MD  648   2011-12-03   
406-926 6 Missoula MT MSSLMTEH4MD  648   2013-11-11   
406-932 7 Big Timber MT BLNGMT93HMD  650   2017-05-20   
406-945 9 Havre MT HLNAMTHH5MD  648   2008-11-21   
406-952 0 Great Falls MT HLNAMTHH5MD  648   2007-02-07   
406-952 1 Great Falls MT HLNAMTHH5MD  648   2008-06-20   
406-952 4 Great Falls MT HLNAMTHH5MD  648   2005-07-17   
406-961 9 Hamilton MT MSSLMTEH4MD  648   2008-11-21   
406-967 1 Worden MT   650   2025-05-06   
406-969 1 Billings MT BLNGMT93HMD  650   2011-03-06   
406-969 2 Billings MT BLNGMT93HMD  650   2011-07-21   
406-969 3 Billings MT BLNGMT93HMD  650   2011-10-13   
406-969 4 Billings MT BLNGMT93HMD  650   2012-01-26   
406-969 5 Billings MT BLNGMT93HMD  650   2012-01-26   
406-969 6 Billings MT BLNGMT93HMD  650   2012-05-03   
406-988 0 Dillon MT HLNAMTHH5MD  648   2006-03-24   
406-996 A Helena MT HLNAMTHH5MD  648      
406-996 1 Helena MT HLNAMTHH5MD  648   2011-03-10   
410-623 9 Marion MD SLBRMDSBX7Y  242   2020-09-25   
413-203 1 Easthampton MA   126   2005-11-27   
413-203 2 Easthampton MA   126   2012-07-22   
413-203 5 Easthampton MA   126   2007-12-09   
413-213 0 Belchertown MA   126   2005-11-27   
413-213 1 Belchertown MA   126   2010-01-15   
413-224 0 East Longmeadow MA   126   2019-04-21   
413-224 1 East Longmeadow MA   126   2005-11-27   
413-224 2 East Longmeadow MA   126   2011-06-24   
413-232 5 West Stockbridge MA   126   2016-06-15   
413-245 1 Brimfield MA   126   2005-11-27   
413-271 1 Springfield MA   126   2005-11-27   
413-279 1 Wilbraham MA   126   2005-11-27   
413-279 2 Wilbraham MA   126   2015-11-12   
413-279 3 Wilbraham MA   126   2012-06-21   
413-300 8 Dalton MA   126   2018-11-09   
413-315 8 Holyoke MA   126   2006-12-11   
413-315 9 Holyoke MA   126   2005-11-27   
413-324 1 Palmer MA   126   2005-11-27   
413-331 A Chicopee MA   126   2025-05-06   
413-331 0 Chicopee MA   126   2005-11-27   
413-331 2 Chicopee MA   126   2006-09-03   
413-331 3 Chicopee MA   126   2008-03-26   
413-331 4 Chicopee MA   126   2011-06-24   
413-331 5 Chicopee MA   126   2013-09-20   
413-338 1 Warren MA   126   2006-05-26   
413-353 5 Housatonic MA   126   2016-06-15   
413-387 0 Northampton MA   126   2005-11-27   
413-437 8 Holyoke MA   126   2011-10-21   
413-461 1 Amherst MA   126   2005-11-27   
413-496 3 Pittsfield MA   126   2016-07-03   
413-566 1 Hampden MA   126   2005-11-27   
413-600 2 Stockbridge MA   126   2016-06-15   
413-610 0 Ludlow MA   126   2005-11-27   
413-610 1 Ludlow MA   126   2009-10-17   
413-610 2 Ludlow MA   126   2015-05-17   
413-643 3 Gilbertville MA   126   2022-06-15   
413-655 4 Hinsdale MA   126   2016-06-15   

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

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