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: 529

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-529 A Colfax IA DESMIADTXUX  965H FRACTEL, LLC 632      
515-529 0 Colfax IA   073H TELNYX LLC 632   2020-05-25   
515-529 1 Colfax IA   624H ONVOY SPECTRUM, LLC 632   2024-05-09   
515-529 2 Colfax IA   516J TON80 COMMUNICATIONS, LLC 632   2022-04-21   
515-529 3 Colfax IA   965H FRACTEL, LLC 632   2020-08-09   
515-529 5 Colfax IA   221F ONVOY, LLC - IA 632   2020-11-16   
515-529 6 Colfax IA   221F ONVOY, LLC - IA 632   2020-11-16   
515-529 7 Colfax IA   9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2023-01-08   
515-529 8 Colfax IA   515J IP HORIZON LLC 632   2025-08-21   
515-529 9 Colfax IA   965H FRACTEL, LLC 632   2020-02-16   

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

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