Local Calling Guide

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NPA: 447 [Rate centres in NPA 447] [Dial plan for NPA 447]

NXX: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-257 A Mason City IL SPFDILES7MD  224C ONVOY, LLC 374      
447-257 0 Mason City IL SPFDILESXYX  495J STRATUS NETWORKS 374      
447-257 1 Mason City IL SPFDILMBWMD  073H TELNYX LLC 374      
447-257 2 Mason City IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 374      
447-257 4 Mason City IL SPFDILES7MD  224C ONVOY, LLC 374      
447-257 7 Mason City IL SPFDILES7MD  224C ONVOY, LLC 374      
447-257 8 Mason City IL   624H ONVOY SPECTRUM, LLC 374      
447-257 9 Mason City IL SPFDILESX8Y  490J DISH WIRELESS, LLC 374      

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

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