Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 389

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-389 A Harrietta MI HRTAMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-389 0 Harrietta MI HRTAMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-389 1 Harrietta MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-389 2 Harrietta MI HRTAMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-389 3 Harrietta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-389 4 Harrietta MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348      
231-389 5 Harrietta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-389 6 Harrietta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-389 7 Harrietta MI GDRPMIBL15Z  516C AT&T CORP. 348      
231-389 8 Harrietta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-389 9 Harrietta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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