Local Calling Guide
Area code/prefix search
NPA: 423
[Rate centres in NPA 423]
[Dial plan for NPA 423]
Block: A
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 423-766
| A |
Limestone |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
|
|
| 423-767
| A |
Johnson City |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
|
|
| 423-768
| A |
Butler |
TN |
BTLRTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-769
| A |
Benton |
TN |
CHTGTNNSXFY |
124F BANDWIDTH.COM CLEC, LLC - TN |
472 |
|
|
|
| 423-770
| A |
Church Hill |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
|
|
| 423-771
| A |
Chattanooga |
TN |
CHTGTNMAXVX |
516C AT&T CORP. |
472 |
|
|
|
| 423-772
| A |
Roan Mountain |
TN |
RNMTTNXARS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-773
| A |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
|
|
| 423-774
| A |
Soddy Daisy |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-775
| A |
Dayton |
TN |
DYTNTNMADS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-776
| A |
Pikeville |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-777
| A |
Chattanooga |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
|
|
| 423-778
| A |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-779
| A |
Chattanooga |
TN |
CHTGTNNS04Z |
829J PAETEC ITEL, LLC |
472 |
|
2024-12-05 |
|
| 423-780
| A |
Charleston |
TN |
CHTNTNMTRS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-781
| A |
Etowah |
TN |
KNVLTNMA23Z |
7421 AT&T - LOCAL |
474 |
|
|
|
| 423-782
| A |
Kingsport |
TN |
JHCYTNXCYZZ |
829J PAETEC ITEL, LLC |
956 |
|
2024-12-07 |
|
| 423-783
| A |
Greeneville |
TN |
GRVLTNXADS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-784
| A |
Jellico |
TN |
JLLCTNMARS0 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
474 |
|
|
|
| 423-785
| A |
Chattanooga |
TN |
CHTGTNNSDS1 |
9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL |
472 |
|
|
|
| 423-786
| A |
Bluff City |
TN |
JHCYTNXCXPX |
525E ONVOY, LLC - TN |
956 |
|
|
|
| 423-787
| A |
Greeneville |
TN |
GRVLTNXADS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-788
| A |
Jonesboro |
TN |
JNBOTNXARP0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-789
| A |
Bristol |
TN |
BRSTTNXADS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-790
| A |
Cleveland |
TN |
|
792K CHARTER IP ENABLED SERVICES, LLC |
472 |
|
2025-03-11 |
|
| 423-791
| A |
Johnson City |
TN |
JHCYTNXCX2Y |
8645 SUNCOM DBA T-MOBILE USA |
956 |
|
|
|
| 423-792
| A |
Oakdale |
TN |
KNVNTNEC8MD |
490J BOOST SUBSCRIBERCO L.L.C. |
474 |
|
2024-04-26 |
|
| 423-793
| A |
Bristol |
TN |
JHCYTNXC9MD |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
956 |
|
|
|
| 423-794
| A |
Johnson City |
TN |
JHCYTNXCYZZ |
829J PAETEC ITEL, LLC |
956 |
|
2024-12-07 |
|
| 423-795
| A |
Johnson City |
TN |
JHCYTNXCXNX |
6630 USA MOBILITY WIRELESS, INC. |
956 |
|
|
|
| 423-796
| A |
Johnson City |
TN |
JHCYTNXCXSY |
490J BOOST SUBSCRIBERCO L.L.C. |
956 |
|
|
|
| 423-797
| A |
Bristol |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
|
|
| 423-798
| A |
Greeneville |
TN |
GRVLTNXADS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-799
| A |
Spring City |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
|
|
| 423-800
| A |
Chattanooga |
TN |
CHTGTNGZ4MD |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
472 |
|
|
|
| 423-801
| A |
Cumberland Gap |
TN |
HRGTTNAG0MD |
6278 UNITED STATES CELLULAR - TN |
466 |
|
|
|
| 423-802
| A |
Chattanooga |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-803
| A |
Chattanooga |
TN |
CHTITNCDDS0 |
4645 ELECTRIC POWER BOARD OF CHATTANOOGA |
472 |
|
|
|
| 423-804
| A |
Bristol |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
|
|
| 423-805
| A |
Chattanooga |
TN |
CHTGTNNSXKY |
525E ONVOY, LLC - TN |
472 |
|
|
|
| 423-806
| A |
Midway (Washington) |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
|
|
| 423-807
| A |
Madisonville |
TN |
KNVLTNJHGT0 |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
474 |
|
|
|
| 423-808
| A |
Tellico Plains |
TN |
KNVLTNMAYHX |
318J COMCAST IP PHONE, LLC |
474 |
|
|
|
| 423-809
| A |
Pikeville |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
|
|
| 423-810
| A |
Charleston |
TN |
CHTGTNNSXEY |
114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN |
472 |
|
|
|
| 423-812
| A |
Greeneville |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
|
|
| 423-813
| A |
Cleveland |
TN |
CHTGTN12X5Y |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
472 |
|
|
|
| 423-814
| A |
Sweetwater |
TN |
KNVNTNEC0MD |
073H TELNYX LLC |
474 |
|
|
|
| 423-815
| A |
Whitwell |
TN |
CHTGTNNSXRZ |
318J COMCAST IP PHONE, LLC |
472 |
|
|
|
| 423-816
| A |
Bristol |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
|
|
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Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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