Local Calling Guide

Area code/prefix search

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

NXX: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-257 A Des Moines IA DESMIADTX5X  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 632      
515-257 0 Des Moines IA DESMIA72GMD  6529 T-MOBILE USA, INC. 632   2008-08-14   
515-257 1 Des Moines IA   221F ONVOY, LLC - IA 632   2008-06-02   
515-257 2 Des Moines IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2025-04-18   
515-257 3 Des Moines IA DESMIA72GMD  6529 T-MOBILE USA, INC. 632   2009-02-26   
515-257 4 Des Moines IA DESMIADTX7X  751F MCC TELEPHONY OF IOWA, LLC - IA 632   2005-05-23   
515-257 5 Des Moines IA DESMIADTX5X  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 632   2008-09-01   
515-257 6 Des Moines IA DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2008-11-29   
515-257 7 Des Moines IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2008-02-25   
515-257 8 Des Moines IA DESMIADTX7X  751F MCC TELEPHONY OF IOWA, LLC - IA 632   2007-02-06   
515-257 9 Des Moines IA DESMIADTX5X  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 632      

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

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