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.

NPA: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-968 7 Dansville MI LNNGMIXIDS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 346   2006-03-20   
517-968 8 Dansville MI LNNGMIXIDS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 346   2006-03-20   
517-968 9 Dansville MI LNNGMIXIDS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 346   2006-03-20   
517-969 A Mason MI LNNGMIMN16Z  829J PAETEC ITEL, LLC 346      
517-969 0 Mason MI LNNGMIMN16Z  829J PAETEC ITEL, LLC 346   2006-03-10   
517-969 1 Mason MI LNNGMIMNX4Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2025-08-29   
517-969 2 Mason MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2021-03-10   
517-969 3 Mason MI LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2008-04-30   
517-969 4 Mason MI LNNGMIMN02Z  318J COMCAST IP PHONE, LLC 346   2007-06-26   
517-969 5 Mason MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2007-03-05   
517-969 6 Mason MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2013-01-30   
517-969 7 Mason MI LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2008-05-08   
517-969 8 Mason MI LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2008-05-08   
517-969 9 Mason MI LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2007-07-26   
517-970 A Reading MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 A Bell Oak MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 2 Bell Oak MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 3 Bell Oak MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 4 Bell Oak MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 5 Bell Oak MI LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-972 7 Bell Oak MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-972 9 Bell Oak MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-973 A Charlotte MI LNNGMIMNXJY  9748 AMERICAN MESSAGING SERVICES, LLC 346      
517-974 A Lansing MI LNNGMIMNX4Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346      
517-975 A Lansing MI LNNGMIMN16Z  829J PAETEC ITEL, LLC 346      
517-975 0 Lansing MI LNNGMIMN16Z  829J PAETEC ITEL, LLC 346   2007-12-07   
517-975 1 Lansing MI LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346   2007-12-10   
517-975 2 Lansing MI LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346   2007-12-10   
517-975 3 Lansing MI LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346   2007-12-10   
517-975 4 Lansing MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2010-08-17   
517-975 5 Lansing MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2010-08-17   
517-975 6 Lansing MI LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346   2007-12-10   
517-975 7 Lansing MI LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346   2007-12-10   
517-975 8 Lansing MI LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346   2007-12-10   
517-975 9 Lansing MI LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346   2007-12-10   
517-977 A Lansing MI LNNGMIMN02Z  318J COMCAST IP PHONE, LLC 346      
517-977 0 Lansing MI LNNGMIMN02Z  318J COMCAST IP PHONE, LLC 346   2006-09-30   
517-977 1 Lansing MI LNNGMIMN02Z  318J COMCAST IP PHONE, LLC 346   2006-09-30   
517-977 2 Lansing MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2009-01-23   
517-977 3 Lansing MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2009-01-23   
517-977 4 Lansing MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2007-12-28   
517-977 5 Lansing MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2007-12-28   
517-977 6 Lansing MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2007-12-28   
517-977 7 Lansing MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2007-12-28   
517-977 8 Lansing MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2009-01-23   
517-977 9 Lansing MI LNNGMIMN16Z  829J PAETEC ITEL, LLC 346   2007-01-14   
517-978 A Mason MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-979 A Rives Junction MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-980 A Lansing MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      
517-980 0 Lansing MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      

<< 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 >>

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.