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.

Cortland, NY

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
607-218 A   829J PAETEC ITEL, LLC 136   2025-04-02   
607-218 0   829J PAETEC ITEL, LLC 136      
607-218 1   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 136   2007-06-18   
607-218 2   997E BANDWIDTH.COM CLEC, LLC - NY 136   2010-03-06   
607-218 3   7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 136   2008-10-01   
607-218 4   997E BANDWIDTH.COM CLEC, LLC - NY 136   2010-06-21   
607-218 5   997E BANDWIDTH.COM CLEC, LLC - NY 136   2010-10-21   
607-218 6   532D TIME WARNER CABLE INFO SVCE (NEW YORK) LLC-NY 136   2010-09-08   
607-218 7   997E BANDWIDTH.COM CLEC, LLC - NY 136   2011-07-07   
607-218 8   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 136   2012-02-23   
607-218 9   829J PAETEC ITEL, LLC 136      
607-250 A SYRCNYSWDS0  7140 TC SYSTEMS, INC. - NY 136      
607-250 0   145J TERRA NOVA TELECOM INC. 136   2022-11-02   
607-250 1   384C ONVOY, LLC- NY 136   2017-01-08   
607-250 2   384C ONVOY, LLC- NY 136   2023-08-09   
607-250 3   384C ONVOY, LLC- NY 136   2023-08-09   
607-250 4   384C ONVOY, LLC- NY 136   2023-08-09   
607-250 5   384C ONVOY, LLC- NY 136   2023-08-09   
607-250 6   384C ONVOY, LLC- NY 136   2023-08-09   
607-250 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 136   2025-03-14   
607-250 8   7140 TC SYSTEMS, INC. - NY 136      
607-250 9   532D TIME WARNER CABLE INFO SVCE (NEW YORK) LLC-NY 136   2020-12-13   
607-261 A SALNNYBH2MD  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136      
607-261 0   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136      
607-261 1   997E BANDWIDTH.COM CLEC, LLC - NY 136   2012-03-12   
607-261 2   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136   2016-04-30   
607-261 3   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136   2021-07-08   
607-261 4   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136   2021-10-02   
607-261 5   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136   2022-01-09   
607-261 6   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136   2022-01-09   
607-261 7   384C ONVOY, LLC- NY 136   2024-03-01   
607-261 8   384C ONVOY, LLC- NY 136   2024-03-01   
607-261 9   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136      
607-283 A SALNNYBH2MD  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136      
607-283 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 136   2025-05-11   
607-283 1   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136      
607-283 2   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 136   2014-07-17   
607-283 3   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136      
607-283 4   997E BANDWIDTH.COM CLEC, LLC - NY 136   2015-02-22   
607-283 5   997E BANDWIDTH.COM CLEC, LLC - NY 136   2016-07-21   
607-283 6   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136      
607-283 7   508J CENTURYLINK COMMUNICATIONS, LLC 136   2014-11-13   
607-283 8   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136   2012-01-13   
607-283 9   5562 METROPCS, INC. 136      
607-289 A SYRCNYSUX1Y  384C ONVOY, LLC- NY 136      
607-289 0   997E BANDWIDTH.COM CLEC, LLC - NY 136   2021-12-16   
607-289 1   384C ONVOY, LLC- NY 136   2024-04-04   
607-289 2   384C ONVOY, LLC- NY 136   2016-03-21   
607-289 3   384C ONVOY, LLC- NY 136   2016-03-21   
607-289 4   384C ONVOY, LLC- NY 136   2026-02-08   
607-289 6   624H ONVOY SPECTRUM, LLC 136   2021-12-11   
607-289 7   624H ONVOY SPECTRUM, LLC 136   2021-12-11   
607-289 8   997E BANDWIDTH.COM CLEC, LLC - NY 136   2021-12-16   
607-289 9   384C ONVOY, LLC- NY 136   2024-04-04   
607-299 A   829J PAETEC ITEL, LLC 136   2025-04-02   
607-299 0   829J PAETEC ITEL, LLC 136      
607-299 1   829J PAETEC ITEL, LLC 136      
607-299 2   829J PAETEC ITEL, LLC 136      
607-299 3   087H EMPIRE LONG DISTANCE CORPORATION 136   2024-08-29   
607-299 4   532D TIME WARNER CABLE INFO SVCE (NEW YORK) LLC-NY 136   2004-02-19   
607-299 5   384C ONVOY, LLC- NY 136   2019-09-08   
607-299 6   384C ONVOY, LLC- NY 136   2019-09-08   
607-299 7   629E FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 136   2019-02-16   
607-299 8   829J PAETEC ITEL, LLC 136      
607-299 9   829J PAETEC ITEL, LLC 136      
607-310 A SYRCNYSWX0X  4006 LEVEL 3 COMMUNICATIONS, LLC - NY 136      
607-310 0   384C ONVOY, LLC- NY 136   2012-10-22   
607-310 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 136   2018-01-16   
607-310 6   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 136      
607-310 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 136   2006-12-15   
607-344 A   829J PAETEC ITEL, LLC 136   2025-04-02   
607-344 0   829J PAETEC ITEL, LLC 136      
607-344 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 136   2014-11-09   
607-344 2   829J PAETEC ITEL, LLC 136      
607-344 3   532D TIME WARNER CABLE INFO SVCE (NEW YORK) LLC-NY 136   2015-12-07   
607-344 4   829J PAETEC ITEL, LLC 136      
607-344 5   939H COMMIO, LLC 136   2022-08-27   
607-344 7   624H ONVOY SPECTRUM, LLC 136   2021-04-24   
607-344 8   515J IP HORIZON LLC 136   2024-09-07   
607-344 9   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136   2020-04-02   
607-345 A SYRCNYSUX8Y  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 136      
607-402 A SYRCNYSUX5Y  495J STRATUS NETWORKS 136      
607-402 1   495J STRATUS NETWORKS 136   2021-03-28   
607-402 6   624H ONVOY SPECTRUM, LLC 136   2022-02-12   
607-402 7   624H ONVOY SPECTRUM, LLC 136   2022-02-12   
607-423 A SYRCNYSUXJX  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136      
607-428 A   829J PAETEC ITEL, LLC 136   2025-04-02   
607-543 A SALNNYBH2MD  5562 METROPCS, INC. 136      
607-543 0   5562 METROPCS, INC. 136      
607-543 1   6622 OMNIPOINT COMMUNICATIONS, INC. - NY 136      
607-543 4   532D TIME WARNER CABLE INFO SVCE (NEW YORK) LLC-NY 136   2014-11-29   
607-591 A SYRCNYSUXJX  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136      
607-591 0   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136      
607-591 1   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136      
607-591 2   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136   2007-04-02   
607-591 3   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136   2008-03-03   
607-591 4   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136   2008-08-13   
607-591 5   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136      
607-591 6   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136      
607-591 7   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136   2009-05-02   

1 2 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.