Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 563 [Rate centres in NPA 563] [Dial plan for NPA 563]

NXX: 348

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
563-348 A Dubuque IA DVNPIADTXPX  965H FRACTEL, LLC 634      
563-348 0 Dubuque IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 634   2020-09-15   
563-348 1 Dubuque IA   624H ONVOY SPECTRUM, LLC 634   2021-07-17   
563-348 2 Dubuque IA   624H ONVOY SPECTRUM, LLC 634   2022-01-15   
563-348 3 Dubuque IA   624H ONVOY SPECTRUM, LLC 634   2022-02-02   
563-348 4 Dubuque IA   221F ONVOY, LLC - IA 634   2023-08-11   
563-348 5 Dubuque IA   221F ONVOY, LLC - IA 634   2020-10-06   
563-348 6 Dubuque IA   965H FRACTEL, LLC 634   2020-09-14   
563-348 7 Dubuque IA   221F ONVOY, LLC - IA 634   2020-10-06   
563-348 8 Dubuque IA   221F ONVOY, LLC - IA 634   2020-10-06   
563-348 9 Dubuque IA   515J IP HORIZON LLC 634   2025-08-21   

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

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