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.

Huntsville, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
423-319 A HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-319 0 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-319 1 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-319 2 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-319 3 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-319 4 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-319 5 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-319 6 KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-319 7 KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-319 8 KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-319 9 KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-363 A KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-363 0 KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-363 4   318J COMCAST IP PHONE, LLC 474      
423-663 A HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-663 0 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-663 1 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-663 2 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-663 3 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-663 4 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-663 5 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-663 6 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-663 7 KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-663 8 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-663 9 HNVITNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.