Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 515 [Rate centres in NPA 515] [Dial plan for NPA 515]

NXX: 349

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-349 A Dallas Center IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
515-349 0 Dallas Center IA   073H TELNYX LLC 632   2020-05-25   
515-349 1 Dallas Center IA   985E BANDWIDTH.COM CLEC, LLC - IA 632   2020-11-19   
515-349 2 Dallas Center IA   515J IP HORIZON LLC 632   2025-08-21   
515-349 3 Dallas Center IA   221F ONVOY, LLC - IA 632   2020-11-16   
515-349 4 Dallas Center IA   221F ONVOY, LLC - IA 632   2020-11-16   
515-349 5 Dallas Center IA   221F ONVOY, LLC - IA 632   2019-10-25   
515-349 6 Dallas Center IA   221F ONVOY, LLC - IA 632   2021-05-10   
515-349 7 Dallas Center IA   221F ONVOY, LLC - IA 632   2021-03-08   
515-349 8 Dallas Center IA   221F ONVOY, LLC - IA 632   2021-03-08   
515-349 9 Dallas Center IA   221F ONVOY, LLC - IA 632   2021-08-30   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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