Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-999 8 Joliet IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358      
815-999 9 Joliet IL   6529 T-MOBILE USA, INC. 358      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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