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 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
507-720 A Mankato MN ROCHMNHH3MD  620   2025-02-27   
507-720 0 Mankato MN ROCHMNHH3MD  620   2006-10-26   
507-720 6 Mankato MN ROCHMNHH3MD  620   2008-06-27   
507-731 A Zumbrota MN ROCHMNHH3MD  620   2025-02-27   
507-731 0 Zumbrota MN ROCHMNHH3MD  620   2018-11-25   
507-779 7 Mankato MN ROCHMNHH3MD  620   2012-05-31   
507-799 A Eyota MN ROCHMNHH3MD  620   2025-02-27   
507-799 0 Eyota MN ROCHMNHH3MD  620      
507-961 A Winona MN ROCHMNHH3MD  620   2025-02-27   
507-961 0 Winona MN ROCHMNHH3MD  620   2006-05-22   
507-961 1 Winona MN ROCHMNHH3MD  620   2012-05-31   
507-992 A Cottonwood MN ROCHMNHH3MD  620   2025-02-27   
507-992 0 Cottonwood MN ROCHMNHH3MD  620      
508-210 0 Holden MA OXFRMAAK1MD  128   2005-01-02   
508-266 0 Whitinsville MA OXFRMAAK1MD  128   2004-06-25   
508-266 7 Whitinsville MA OXFRMAAK1MD  128   2013-09-15   
508-281 0 Marlboro MA OXFRMAAK1MD  128   2005-01-01   
508-304 1 Worcester MA OXFRMAAK1MD  128   2006-03-25   
508-304 6 Worcester MA OXFRMAAK1MD  128   2014-08-11   
508-304 7 Worcester MA OXFRMAAK1MD  128   2005-10-31   
508-304 8 Worcester MA OXFRMAAK1MD  128   2004-06-25   
508-304 9 Worcester MA OXFRMAAK1MD  128   2006-01-05   
508-329 1 Westboro MA OXFRMAAK1MD  128   2005-01-02   
508-329 5 Westboro MA OXFRMAAK1MD  128   2008-04-18   
508-329 6 Westboro MA OXFRMAAK1MD  128   2013-01-27   
508-372 9 Whitinsville MA OXFRMAAK1MD  128   2007-01-20   
508-373 2 Worcester MA OXFRMAAK1MD  128   2008-03-29   
508-407 8 Auburn MA OXFRMAAK1MD  128   2004-06-25   
508-434 0 Charlton MA OXFRMAAK1MD  128   2004-06-25   
508-434 1 Charlton MA OXFRMAAK1MD  128   2011-11-06   
508-459 0 Worcester MA OXFRMAAK1MD  128   2006-05-12   
508-459 1 Worcester MA OXFRMAAK1MD  128   2006-09-03   
508-459 2 Worcester MA OXFRMAAK1MD  128   2006-11-24   
508-459 9 Worcester MA OXFRMAAK1MD  128   2007-05-21   
508-461 5 Webster MA OXFRMAAK1MD  128   2013-06-23   
508-461 6 Webster MA OXFRMAAK1MD  128   2008-07-14   
508-461 7 Webster MA OXFRMAAK1MD  128   2006-06-08   
508-461 9 Webster MA OXFRMAAK1MD  128   2004-06-25   
508-466 8 Northboro MA OXFRMAAK1MD  128   2005-01-01   
508-476 5 East Douglas MA OXFRMAAK1MD  128   2004-06-25   
508-526 3 Uxbridge MA OXFRMAAK1MD  128   2017-12-31   
508-581 4 Millbury MA OXFRMAAK1MD  128   2011-08-22   
508-603 1 Upton MA OXFRMAAK1MD  128   2005-01-01   
508-637 1 North Brookfield MA OXFRMAAK1MD  128   2004-06-25   
508-731 A Oxford MA OXFRMAAK1MD  128      
508-731 0 Oxford MA OXFRMAAK1MD  128   2004-06-25   
508-731 6 Oxford MA OXFRMAAK1MD  128   2004-06-25   
508-731 7 Oxford MA OXFRMAAK1MD  128   2012-07-04   
508-762 9 Worcester MA OXFRMAAK1MD  128   2009-12-13   
508-779 A Uxbridge MA OXFRMAAK1MD  128      

<< 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 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 >>

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.