Local Calling Guide
Area code/prefix search
NPA: 423
[Rate centres in NPA 423]
[Dial plan for NPA 423]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 423-278
| 4 |
Greeneville |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2007-09-24 |
|
| 423-278
| 5 |
Greeneville |
TN |
JHCYTNXCX3X |
7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN |
956 |
|
2007-08-10 |
|
| 423-278
| 6 |
Greeneville |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2007-07-15 |
|
| 423-278
| 7 |
Greeneville |
TN |
|
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2025-11-16 |
|
| 423-278
| 8 |
Greeneville |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2003-12-21 |
|
| 423-278
| 9 |
Greeneville |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
2008-05-13 |
|
| 423-279
| A |
Blountville |
TN |
BUVLTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-279
| 0 |
Blountville |
TN |
BUVLTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-279
| 1 |
Blountville |
TN |
BUVLTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-279
| 2 |
Blountville |
TN |
BUVLTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-279
| 3 |
Blountville |
TN |
BUVLTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-279
| 4 |
Blountville |
TN |
BUVLTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-279
| 5 |
Blountville |
TN |
JHCYTNXCXAY |
073H TELNYX LLC |
956 |
|
2021-01-17 |
|
| 423-279
| 6 |
Blountville |
TN |
BUVLTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-279
| 7 |
Blountville |
TN |
BUVLTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-279
| 8 |
Blountville |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2021-11-28 |
|
| 423-279
| 9 |
Blountville |
TN |
BUVLTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-280
| A |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-281
| A |
Butler |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
|
|
| 423-281
| 0 |
Butler |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2012-08-24 |
|
| 423-281
| 1 |
Butler |
TN |
BUVLTNAX0MD |
792K CHARTER IP ENABLED SERVICES, LLC |
956 |
|
2011-12-16 |
|
| 423-281
| 2 |
Butler |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2015-09-10 |
|
| 423-281
| 3 |
Butler |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2015-11-16 |
|
| 423-281
| 4 |
Butler |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2017-05-29 |
|
| 423-281
| 5 |
Butler |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2017-05-29 |
|
| 423-281
| 6 |
Butler |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2017-09-15 |
|
| 423-281
| 7 |
Butler |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
2014-04-19 |
|
| 423-281
| 8 |
Butler |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2017-09-15 |
|
| 423-281
| 9 |
Butler |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2018-05-17 |
|
| 423-282
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-283
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-284
| A |
Cleveland |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-285
| A |
Dayton |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-285
| 0 |
Dayton |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-285
| 1 |
Dayton |
TN |
CHTGTNNS04Z |
829J PAETEC ITEL, LLC |
472 |
|
2006-07-15 |
|
| 423-285
| 2 |
Dayton |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
2006-09-16 |
|
| 423-285
| 3 |
Dayton |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-285
| 4 |
Dayton |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-285
| 5 |
Dayton |
TN |
|
792K CHARTER IP ENABLED SERVICES, LLC |
472 |
|
2006-06-03 |
|
| 423-285
| 6 |
Dayton |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
2008-05-26 |
|
| 423-285
| 7 |
Dayton |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-285
| 8 |
Dayton |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
2004-11-15 |
|
| 423-285
| 9 |
Dayton |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
2007-02-24 |
|
| 423-286
| A |
Oneida |
TN |
ONEDTNXADS1 |
0565 HIGHLAND TEL. COOP, INC. |
474 |
|
|
|
| 423-287
| A |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-287
| 0 |
Chattanooga |
TN |
CHTGTNNSXMZ |
624H ONVOY SPECTRUM, LLC |
472 |
|
2022-08-08 |
|
| 423-287
| 1 |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-287
| 2 |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-287
| 3 |
Chattanooga |
TN |
CHTGTNNSXNZ |
197D VONAGE AMERICA LLC |
472 |
|
2023-10-13 |
|
| 423-287
| 4 |
Chattanooga |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
2024-01-14 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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