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: 715 [Rate centres in NPA 715] [Dial plan for NPA 715]

NXX: 665

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
715-665 A Knapp WI KNAPWIXARS2  1155 TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK 352      
715-665 1 Knapp WI RCLKWIXBGMD  225C ONVOY, LLC - WI 352   2021-01-16   
715-665 2 Knapp WI KNAPWIXARS2  1155 TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK 352      
715-665 3 Knapp WI MNMNWIAVRS0  4855 24-7 TELCOM, INC. - WI 352   2020-01-11   
715-665 4 Knapp WI RCLKWIXBGMD  225C ONVOY, LLC - WI 352   2021-01-16   
715-665 5 Knapp WI RCLKWIXBGMD  225C ONVOY, LLC - WI 352   2020-05-29   
715-665 6 Knapp WI RCLKWIXBGMD  225C ONVOY, LLC - WI 352   2021-01-16   
715-665 7 Knapp WI EUCLWIAU3MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 352   2014-11-28   
715-665 8 Knapp WI RCLKWIXBGMD  225C ONVOY, LLC - WI 352   2021-01-16   
715-665 9 Knapp WI   145J TERRA NOVA TELECOM INC. 352   2025-08-03   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.