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: 515 [Rate centres in NPA 515] [Dial plan for NPA 515]

NXX: 755

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-755 A Wesley IA DESMIADTXUX  965H FRACTEL, LLC 632      
515-755 0 Wesley IA   073H TELNYX LLC 632   2020-05-29   
515-755 1 Wesley IA   751F MCC TELEPHONY OF IOWA, LLC - IA 632   2021-03-11   
515-755 4 Wesley IA   9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2023-01-08   
515-755 5 Wesley IA   965H FRACTEL, LLC 632   2020-02-16   
515-755 7 Wesley IA   221F ONVOY, LLC - IA 632   2020-11-16   
515-755 9 Wesley IA   515J IP HORIZON LLC 632   2025-08-21   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.