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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
970-314 A Grand Junction CO GDJTCOFD5MD  656      
970-314 2 Grand Junction CO   656   2004-10-09   
970-314 7 Grand Junction CO   656   2005-07-29   
970-314 9 Grand Junction CO   656   2005-11-08   
970-370 2 Fort Morgan CO   656   2006-06-20   
970-399 3 Delta CO   656   2005-08-13   
970-403 3 Durango CO   656   2008-11-03   
970-417 4 Montrose CO   656   2008-05-05   
970-422 8 Durango CO   656   2008-11-21   
970-424 A Grand Junction CO GDJTCOFD5MD  656      
970-424 0 Grand Junction CO   656   2007-07-01   
970-424 5 Grand Junction CO   656   2007-03-26   
970-425 2 Sterling CO   656   2008-11-21   
970-433 7 Grand Junction CO   656   2006-09-29   
970-438 A Palisade CO GDJTCOFD5MD  656      
970-438 6 Palisade CO   656   2007-11-04   
970-450 0 Rangely CO   656   2021-03-02   
970-464 2 Palisade CO   656   2005-02-24   
970-526 6 Sterling CO   656   2005-12-17   
970-527 8 Paonia CO   656   2021-03-02   
970-533 4 Mancos CO   656   2007-11-19   
970-549 A Grand Junction CO GDJTCOFD5MD  656      
970-549 1 Grand Junction CO   656   2012-04-13   
970-549 4 Grand Junction CO   656   2012-09-13   
970-615 7 Montrose CO   656   2014-04-13   
970-620 4 Craig CO   656   2006-06-20   
970-628 A Grand Junction CO GDJTCOFD5MD  656      
970-628 1 Grand Junction CO   656   2011-03-06   
970-628 4 Grand Junction CO   656   2011-09-23   
970-639 2 Fruita CO   656   2005-02-24   
970-639 8 Fruita CO   656   2007-09-01   
970-639 9 Fruita CO   656   2011-08-12   
970-644 5 Grand Junction CO   656   2014-03-02   
970-676 0 Dolores CO   656   2008-06-07   
970-693 1 Meeker CO   656   2017-07-23   
970-697 1 Grand Junction CO   656   2014-05-27   
970-764 4 Durango CO   656   2005-02-07   
970-765 2 Montrose CO   656   2009-09-14   
970-812 5 Grand Junction CO   656   2008-06-22   
970-842 7 Brush CO   656   2006-06-20   
970-964 4 Montrose CO   656   2005-06-13   
970-985 4 Grand Junction CO   656   2006-03-14   
970-986 8 Grand Junction CO   656   2009-04-09   
971-248 1 Vernonia OR   672   2023-09-06   
971-257 A Cloverdale OR   672      
971-257 0 Cloverdale OR   672      
971-265 A Garibaldi OR   672      
971-265 1 Garibaldi OR   672      
971-306 A Rockaway OR   672      
971-306 1 Rockaway OR   672      

<< 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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.