Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 217 [Rate centres in NPA 217] [Dial plan for NPA 217]

NXX: 350

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-350 A Mount Zion IL SPFDILMB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-350 0 Mount Zion IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-350 2 Mount Zion IL   224C ONVOY, LLC 374   2022-04-17   
217-350 3 Mount Zion IL   5562 METROPCS, INC. 374   2015-07-04   
217-350 4 Mount Zion IL   6529 T-MOBILE USA, INC. 374   2024-03-08   
217-350 5 Mount Zion IL   224C ONVOY, LLC 374   2022-12-22   
217-350 6 Mount Zion IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 374   2019-04-08   
217-350 7 Mount Zion IL   224C ONVOY, LLC 374   2019-07-27   
217-350 8 Mount Zion IL   224C ONVOY, LLC 374   2019-07-27   
217-350 9 Mount Zion IL   495J STRATUS NETWORKS 374   2020-11-13   

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

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