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.

Greeneville, TN

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
423-278 A JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-278 0 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2007-01-26   
423-278 1 JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-278 2 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2008-05-08   
423-278 3 JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-278 4 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2007-09-24   
423-278 5 JHCYTNXCX3X  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 956   2007-08-10   
423-278 6 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2007-07-15   
423-278 7   792K CHARTER IP ENABLED SERVICES, LLC 956   2025-11-16   
423-278 8 JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2003-12-21   
423-278 9 JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956   2008-05-13   
423-329 A JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 0   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 1   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 2   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 3   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 4   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 5   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 6   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 7   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 8   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 9   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-359 A GRVLTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-470 A JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 0 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 1 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 2 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 3 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 4 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 5 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 6 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 7 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2025-06-17   
423-470 8 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 9 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-525 A JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-525 0 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2009-12-06   
423-525 1 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2009-08-02   
423-525 2 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2009-03-12   
423-525 3 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2009-05-09   
423-525 4 JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2008-11-21   
423-525 5 JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2009-06-26   
423-525 6 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2009-10-04   
423-525 7 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2010-01-16   
423-525 8 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2010-09-25   
423-525 9 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2010-06-19   
423-552 A JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-552 0 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-552 1 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-552 2 JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2004-04-03   
423-552 3 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-552 4 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-552 5 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-552 6 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-552 7 JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2004-06-11   
423-552 8 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2004-07-05   
423-552 9 JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2004-11-05   
423-588 A JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-588 0 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2010-03-15   
423-588 1 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2011-07-04   
423-588 2 JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956   2011-06-21   
423-588 3   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2025-05-09   
423-588 4 JHCYTNXCXPX  525E ONVOY, LLC - TN 956   2011-08-15   
423-588 5 JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2012-04-21   
423-588 6 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2013-12-21   
423-588 7 JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956   2012-10-20   
423-588 8 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2014-03-01   
423-588 9 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2010-03-12   
423-609 A JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-609 0 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2015-02-09   
423-609 1 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2015-04-03   
423-609 2 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2015-10-05   
423-609 3 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2015-11-16   
423-609 4 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2016-01-21   
423-609 5 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2016-03-18   
423-609 6 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2016-04-03   
423-609 7 JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2015-11-27   
423-609 8 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2016-09-15   
423-609 9 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2014-10-11   
423-620 A JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-620 0 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-620 1 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-620 2 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-620 3 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2005-09-29   
423-620 4 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2004-11-06   
423-620 5 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2004-12-05   
423-620 6 JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2004-12-19   
423-620 7 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2005-01-03   
423-620 8 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2005-05-06   
423-620 9 JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-636 A GRVLTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-638 A GRVLTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-639 A GRVLTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-684 A GRVLTN02W00  8945 NA COMMUNICATIONS, INC. 956     2025-11-22 
423-783 A GRVLTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-787 A GRVLTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-798 A GRVLTNXADS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-812 A JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-812 0 JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956   2016-10-22   
423-812 1 JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2019-09-29   
423-812 2 JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956   2020-12-25   

1 2 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.