Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 829

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-829 A Tustin MI TUSTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-829 0 Tustin MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-829 1 Tustin MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348      
231-829 2 Tustin MI GDRPMIBL15Z  516C AT&T CORP. 348      
231-829 3 Tustin MI TUSTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
231-829 4 Tustin MI   145J TERRA NOVA TELECOM INC. 348      
231-829 5 Tustin MI   145J TERRA NOVA TELECOM INC. 348      
231-829 6 Tustin MI   829J PAETEC ITEL, LLC 348      
231-829 7 Tustin MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-829 8 Tustin MI GDRPMIBL36Z  624H ONVOY SPECTRUM, LLC 348      
231-829 9 Tustin MI TUSTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.