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: 587

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-587 A Oostburg WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-587 4 Oostburg WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-587 7 Oostburg WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2022-12-29   
920-587 8 Oostburg WI MILWWIAU03Z  516J TON80 COMMUNICATIONS, LLC 356   2021-10-02   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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