Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 320 [Rate centres in NPA 320] [Dial plan for NPA 320]

NXX: 478

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-478 A St Cloud MN STCDMNTOXOY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 626   2024-07-16   
320-478 9 St Cloud MN STCDMNTOXOY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 626   2024-07-16   

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

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