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.

Bluff City, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
423-391 A BLCYTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-391 0 BLCYTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-391 1 BLCYTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-391 2   624H ONVOY SPECTRUM, LLC 956      
423-391 3 BLCYTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-391 4 JHCYTNXCX3X  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 956      
423-391 5 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-391 6 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-391 7   792K CHARTER IP ENABLED SERVICES, LLC 956      
423-391 8   792K CHARTER IP ENABLED SERVICES, LLC 956      
423-391 9 JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-538 A BLCYTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-575 A BRSTTN27DS0  895D BRISTOL TENNESSEE ESSENTIAL SERVICES - TN 956      
423-712 A JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-712 0 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-712 1 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-712 2 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-712 3 JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-712 4 JHCYTNXCXAY  073H TELNYX LLC 956      
423-712 5 JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-712 6 JHCYTNXCXRX  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 956      
423-712 7 JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-712 8 JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-712 9 JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-786 A JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-786 2 JHCYTNXCXPX  525E ONVOY, LLC - TN 956      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.