Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Old Mission, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
231-223 A OLMSMIXIRS0  0720 ACE TEL. CO. OF MICHIGAN, INC. 348      
231-223 0 OLMSMIXIRS0  0720 ACE TEL. CO. OF MICHIGAN, INC. 348      
231-223 1 OLMSMIXIRS0  0720 ACE TEL. CO. OF MICHIGAN, INC. 348      
231-223 2 OLMSMIXIRS0  0720 ACE TEL. CO. OF MICHIGAN, INC. 348      
231-223 3 OLMSMIXIRS0  0720 ACE TEL. CO. OF MICHIGAN, INC. 348      
231-223 4 OLMSMIXIRS0  0720 ACE TEL. CO. OF MICHIGAN, INC. 348      
231-223 5   792K CHARTER IP ENABLED SERVICES, LLC 348   2017-08-10   
231-223 7 OLMSMIXIRS0  0720 ACE TEL. CO. OF MICHIGAN, INC. 348      
231-223 8 OLMSMIXIRS0  0720 ACE TEL. CO. OF MICHIGAN, INC. 348      
231-223 9 OLMSMIXIRS0  0720 ACE TEL. CO. OF MICHIGAN, INC. 348      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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