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: 464C ONVOY, LLC - OH

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
740-308 6 Dexter City OH CLMBOHLT1MD  324   2021-02-01   
740-308 7 Dexter City OH CLMBOHLT1MD  324   2021-02-01   
740-309 A Barnesville OH   324      
740-309 0 Barnesville OH CLMBOHLT1MD  324   2020-12-20   
740-309 6 Barnesville OH CLMBOHLT1MD  324   2019-02-22   
740-313 1 Washington Court House OH CLMBOHLT1MD  324   2012-10-15   
740-313 5 Washington Court House OH CLMBOHLT1MD  324   2016-03-31   
740-313 8 Washington Court House OH CLMBOHLT1MD  324   2016-03-31   
740-318 A Sugar Grove OH   324      
740-318 0 Sugar Grove OH CLMBOHLT1MD  324   2016-04-04   
740-318 2 Sugar Grove OH CLMBOHLT1MD  324   2012-10-15   
740-324 6 Mount Vernon OH   923   2026-04-04   
740-325 8 Bellaire OH CLMBOHLT1MD  324   2015-07-03   
740-327 3 Cooperdale OH CLMBOHLT1MD  324   2019-02-24   
740-327 5 Cooperdale OH CLMBOHLT1MD  324   2020-04-19   
740-327 8 Cooperdale OH CLMBOHLT1MD  324   2017-06-23   
740-332 5 Laurelville OH CLMBOHLT1MD  324   2017-06-23   
740-337 A Toronto OH   324      
740-337 0 Toronto OH CLMBOHLT1MD  324   2015-07-04   
740-337 7 Toronto OH CLMBOHLT1MD  324   2012-10-15   
740-338 6 St Clairsville OH CLMBOHLT1MD  324   2012-04-01   
740-340 2 Bellaire OH CLMBOHLT1MD  324   2014-05-10   
740-342 8 New Lexington OH   324   2025-10-30   
740-343 2 New Lexington OH CLMBOHLT1MD  324   2015-07-04   
740-347 7 Corning OH CLMBOHLT1MD  324   2015-07-04   
740-351 7 Portsmouth OH CLMBOHLT1MD  324   2021-01-01   
740-351 8 Portsmouth OH PTMOOHXAX0X  324   2023-09-16   
740-365 0 Caldwell OH CLMBOHLT1MD  324   2019-02-22   
740-365 1 Caldwell OH CMBROHXB4MD  324   2023-09-16   
740-365 5 Caldwell OH CLMBOHLT1MD  324   2018-09-20   
740-365 6 Caldwell OH CLMBOHLT1MD  324   2021-02-01   
740-365 7 Caldwell OH CLMBOHLT1MD  324   2021-02-01   
740-367 3 Cheshire (Gallia) OH CLMBOHLT1MD  324   2019-02-24   
740-367 4 Cheshire (Gallia) OH CLMBOHLT1MD  324   2019-02-24   
740-367 8 Cheshire (Gallia) OH CLMBOHLT1MD  324   2015-07-03   
740-371 3 Marietta OH CLMBOHLT1MD  324   2016-04-11   
740-371 6 Marietta OH CLMBOHLT1MD  324   2016-04-11   
740-371 9 Marietta OH CLMBOHLT1MD  324   2021-03-11   
740-377 6 Ironton OH CLMBOHLT1MD  324   2021-04-13   
740-377 7 Ironton OH CLMBOHLT1MD  324   2024-05-12   
740-379 3 Walnut OH CLMBOHLT1MD  324   2015-02-06   
740-379 4 Walnut OH CLMBOHLT1MD  324   2018-09-14   
740-379 5 Walnut OH CLMBOHLT1MD  324   2015-07-04   
740-388 3 Vinton OH CLMBOHLT1MD  324   2015-07-04   
740-390 6 Mount Vernon OH MNFDOHXAXDX  923   2023-08-13   
740-394 4 Shawnee OH CLMBOHLT1MD  324   2015-07-04   
740-394 6 Shawnee OH CLMBOHLT1MD  324   2020-12-13   
740-394 7 Shawnee OH CLMBOHLT1MD  324   2020-12-13   
740-400 7 Baltimore OH CLMBOHLT1MD  324   2017-08-15   
740-401 7 Belpre OH CLMBOHLT1MD  324   2012-10-13   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 >>

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.