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: 628

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-628 A Aledo IL RCISILFP0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 634      
309-628 0 Aledo IL RCISILFP0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 634   2006-05-06   
309-628 7 Aledo IL RCISILRIXMD  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 634   2023-09-01   
309-628 8 Aledo IL DVNPIADTXQX  224C ONVOY, LLC 634   2020-04-29   
309-628 9 Aledo IL DVNPIA80XPX  6529 T-MOBILE USA, INC. 634   2011-01-07   

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

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