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: 370

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-370 A Jefferson IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
515-370 0 Jefferson IA   6266 UNITED STATES CELLULAR - IA 632      
515-370 1 Jefferson IA   6266 UNITED STATES CELLULAR - IA 632      
515-370 2 Jefferson IA   6266 UNITED STATES CELLULAR - IA 632      
515-370 3 Jefferson IA   6266 UNITED STATES CELLULAR - IA 632      
515-370 4 Jefferson IA   6266 UNITED STATES CELLULAR - IA 632      
515-370 5 Jefferson IA   6266 UNITED STATES CELLULAR - IA 632      
515-370 6 Jefferson IA   6266 UNITED STATES CELLULAR - IA 632   2014-06-08   
515-370 8 Jefferson IA   145J TERRA NOVA TELECOM INC. 632   2025-05-27   
515-370 9 Jefferson IA   5562 METROPCS, INC. 632   2022-11-01   

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

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