Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 705

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-705 A Roseville IL MCMBILXDZMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977      
309-705 0 Roseville IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977      
309-705 3 Roseville IL   342F MTC COMMUNICATIONS, INC. - IL 977   2015-10-18   
309-705 5 Roseville IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 977   2016-01-22   

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

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