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.

Cincinnati, 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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
513-978 2 CNCNOHFBAMD  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 922   2014-12-01   
513-978 3 CNCNOHFBAMD  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 922   2015-07-29   
513-978 4 CNCNOHFBAMD  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 922   2015-07-29   
513-978 5 CNCNOHBVDS7  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 922   2014-11-27   
513-978 6 CNCNOHFBAMD  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 922   2015-07-14   
513-978 7 CNCNOHFBAMD  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 922   2015-07-29   
513-978 8 CNCNOHAMGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2015-07-30   
513-978 9 CNCNOHAMGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2015-07-30   
513-979 A CNCNOHHPDS0  9348 CINCINNATI BELL 922      
513-979 0 CNCNOHHPDS0  9348 CINCINNATI BELL 922      
513-979 1 CNCNOHHPDS0  9348 CINCINNATI BELL 922      
513-979 2 CNCNOHHPDS0  9348 CINCINNATI BELL 922      
513-979 3 CNCNOHHPDS0  9348 CINCINNATI BELL 922      
513-979 4 CNCNOHWS01Z  793K TWC IP ENABLED SERVICES, LLC 922   2007-09-05   
513-979 5 CNCNOHHPDS0  9348 CINCINNATI BELL 922      
513-979 6 CNCNOHHPDS0  9348 CINCINNATI BELL 922      
513-979 7 RSMYOHRODS0  9348 CINCINNATI BELL 922   2006-09-25   
513-979 8 RSMYOHRODS0  9348 CINCINNATI BELL 922   2006-09-25   
513-979 9 RSMYOHRODS0  9348 CINCINNATI BELL 922   2006-09-25   
513-981 A EVDLOHEVDS0  9348 CINCINNATI BELL 922      
513-981 0 EVDLOHEVDS0  9348 CINCINNATI BELL 922      
513-981 1 CNCNOHWSXGY  6529 T-MOBILE USA, INC. 922   2006-08-13   
513-981 2 EVDLOHEVDS0  9348 CINCINNATI BELL 922      
513-981 3 EVDLOHEVDS0  9348 CINCINNATI BELL 922      
513-981 4 EVDLOHEVDS0  9348 CINCINNATI BELL 922      
513-981 5 EVDLOHEVDS0  9348 CINCINNATI BELL 922      
513-981 6 EVDLOHEVDS0  9348 CINCINNATI BELL 922      
513-981 7 EVDLOHEVDS0  9348 CINCINNATI BELL 922      
513-981 8 CNCNOHWSXGY  6529 T-MOBILE USA, INC. 922   2006-09-13   
513-981 9 CNCNOHWSXGY  6529 T-MOBILE USA, INC. 922   2006-09-13   
513-983 A CNCNOHWSDS3  9348 CINCINNATI BELL 922      
513-984 A RSMYOHRODS0  9348 CINCINNATI BELL 922      
513-985 A RSMYOHRODS0  9348 CINCINNATI BELL 922      
513-991 A CNCNOHRE2MD  464C ONVOY, LLC - OH 922      
513-991 0 CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2020-12-03   
513-991 1 CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2020-09-13   
513-991 2 CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2020-09-13   
513-991 3 CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2020-12-03   
513-991 4 CNCNOHBVDS7  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 922   2020-11-01   
513-991 5 CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2020-12-03   
513-991 6 CNCNOHBVDS7  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 922   2020-10-10   
513-991 7 CNCNOHAF2MD  001F BANDWIDTH.COM CLEC, LLC - OH 922   2020-09-14   
513-991 8 CNCNOHAF2MD  001F BANDWIDTH.COM CLEC, LLC - OH 922   2020-09-14   
513-991 9 CNCNOHAF2MD  001F BANDWIDTH.COM CLEC, LLC - OH 922   2020-09-14   
513-993 A CNCNOHWSXAZ  321J HD CARRIER LLC 922      
513-993 0 CNCNOHBVDS7  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 922   2020-08-16   
513-993 1 CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2019-06-07   
513-993 2 CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2019-06-07   
513-993 3 CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2019-06-07   
513-993 4 CNCNOHRE2MD  464C ONVOY, LLC - OH 922   2019-06-07   

<< 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 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.