Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 447 [Rate centres in NPA 447] [Dial plan for NPA 447]

NXX: 387

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-387 A Sullivan IL SPFDILES7MD  224C ONVOY, LLC 374      
447-387 0 Sullivan IL SPFDILMBWMD  073H TELNYX LLC 374   2023-11-16   
447-387 1 Sullivan IL SPFDILESXQX  624H ONVOY SPECTRUM, LLC 374   2024-05-25   
447-387 4 Sullivan IL SPFDILES7MD  224C ONVOY, LLC 374   2021-06-25   
447-387 6 Sullivan IL SPFDILSDX2X  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 374   2022-08-10   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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