Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-900 A Watertown WI MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-900 0 Watertown WI MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2023-10-06   
920-900 1 Watertown WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2024-11-29   
920-900 6 Watertown WI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-01-16   
920-900 9 Watertown WI MILWWIAU00Z  145J TERRA NOVA TELECOM INC. 356   2024-05-25   

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

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