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
507-206 6 Rochester MN   620   2007-09-28   
507-208 4 Rochester MN   620   2008-05-03   
507-226 8 Rochester MN   620   2010-05-20   
507-258 A Rochester MN ROCHMNHH3MD  620   2025-02-27   
507-258 1 Rochester MN   620   2018-09-02   
507-258 2 Rochester MN   620   2018-05-17   
507-258 4 Rochester MN   620   2012-07-31   
507-258 5 Rochester MN   620   2013-05-13   
507-258 6 Rochester MN   620   2014-03-06   
507-258 7 Rochester MN   620   2014-10-18   
507-301 3 Northfield MN   620   2006-06-30   
507-322 0 Rochester MN   620   2016-04-04   
507-322 6 Rochester MN   620   2015-11-01   
507-323 8 Faribault MN   620   2012-05-28   
507-369 5 Albert Lea MN   620   2007-03-26   
507-384 3 Faribault MN   620   2006-06-30   
507-396 2 Austin MN   620   2007-03-26   
507-396 8 Austin MN   620   2008-10-10   
507-401 3 Marshall MN   620   2006-05-22   
507-410 1 Rollingstone MN   620   2008-03-15   
507-413 0 Owatonna MN   620   2006-06-30   
507-413 6 Owatonna MN   620   2011-04-21   
507-473 2 Albert Lea MN   620   2010-09-06   
507-509 9 Austin MN   620   2017-12-03   
507-533 0 Stewartville MN   620   2006-05-22   
507-551 2 La Crescent MN   620   2012-11-01   
507-591 5 Marshall MN   620   2014-03-06   
507-594 9 Mankato MN   620   2016-07-09   
507-603 A Kasson MN ROCHMNHH3MD  620   2025-02-27   
507-603 1 Kasson MN   620      
507-604 A Lewiston MN ROCHMNHH3MD  620   2025-02-27   
507-604 0 Lewiston MN   620      
507-615 0 Winona MN   620   2016-10-12   
507-624 A Byron MN ROCHMNHH3MD  620   2025-02-27   
507-624 0 Byron MN   620      
507-629 6 Tracy MN   620   2007-01-20   
507-654 A Eagle Lake MN ROCHMNHH3MD  620   2025-02-27   
507-654 0 Eagle Lake MN   620      
507-664 1 Northfield MN   620   2012-07-01   
507-668 4 Albert Lea MN   620   2016-03-22   
507-704 A Altura MN ROCHMNHH3MD  620   2025-02-27   
507-704 1 Altura MN   620   2016-10-01   
507-720 A Mankato MN ROCHMNHH3MD  620   2025-02-27   
507-720 0 Mankato MN   620   2006-10-26   
507-720 6 Mankato MN   620   2008-06-27   
507-731 A Zumbrota MN ROCHMNHH3MD  620   2025-02-27   
507-731 0 Zumbrota MN   620   2018-11-25   
507-779 7 Mankato MN   620   2012-05-31   
507-799 A Eyota MN ROCHMNHH3MD  620   2025-02-27   
507-799 0 Eyota MN   620      

<< 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: ISP Telecom

Like this site? We accept donations via PayPal.