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 |
| 423-428
| 7 |
Dayton |
TN |
CHTGTNNS04Z |
829J PAETEC ITEL, LLC |
472 |
|
|
|
| 423-428
| 8 |
Dayton |
TN |
CHTGTNNSX8X |
4806 LEVEL 3 COMMUNICATIONS, LLC - TN |
472 |
|
2008-02-19 |
|
| 423-428
| 9 |
Dayton |
TN |
CLEVTNDL1MD |
792K CHARTER IP ENABLED SERVICES, LLC |
472 |
|
2008-03-08 |
|
| 423-429
| A |
Kingsport |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
|
|
| 423-429
| 0 |
Kingsport |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2008-03-15 |
|
| 423-429
| 1 |
Kingsport |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2008-07-11 |
|
| 423-429
| 2 |
Kingsport |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2008-07-11 |
|
| 423-429
| 3 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2009-08-02 |
|
| 423-429
| 4 |
Kingsport |
TN |
JHCYTNXCXYX |
6214 NEW CINGULAR WIRELESS PCS, LLC - GA |
956 |
|
2008-08-08 |
|
| 423-429
| 5 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2008-11-02 |
|
| 423-429
| 6 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2010-11-06 |
|
| 423-429
| 7 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2009-09-06 |
|
| 423-429
| 8 |
Kingsport |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2009-11-08 |
|
| 423-429
| 9 |
Kingsport |
TN |
JHCYTNXCX2Y |
5562 METROPCS, INC. |
956 |
|
2011-01-28 |
|
| 423-430
| A |
Johnson City |
TN |
JHCYTNXCX0Y |
551G NUSO, LLC |
956 |
|
|
|
| 423-430
| 0 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2013-10-05 |
|
| 423-430
| 1 |
Johnson City |
TN |
JHCYTNXCX0Y |
551G NUSO, LLC |
956 |
|
2013-05-08 |
|
| 423-430
| 2 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2013-12-19 |
|
| 423-430
| 3 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2014-02-03 |
|
| 423-430
| 4 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2014-03-20 |
|
| 423-430
| 5 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2014-03-20 |
|
| 423-430
| 6 |
Johnson City |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2015-06-14 |
|
| 423-430
| 7 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2014-08-02 |
|
| 423-430
| 8 |
Johnson City |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2014-08-31 |
|
| 423-430
| 9 |
Johnson City |
TN |
JHCYTNXCXNX |
124F BANDWIDTH.COM CLEC, LLC - TN |
956 |
|
2014-08-31 |
|
| 423-431
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-431
| 0 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-431
| 1 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-431
| 2 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-431
| 3 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-431
| 4 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-431
| 5 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-431
| 6 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-431
| 7 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-431
| 8 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2004-10-30 |
|
| 423-431
| 9 |
Johnson City |
TN |
JHCYTNXCXIY |
6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN |
956 |
|
2004-10-30 |
|
| 423-432
| A |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-432
| 0 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-432
| 1 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-432
| 2 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-432
| 3 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-432
| 4 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-432
| 5 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-432
| 6 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-432
| 7 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-432
| 8 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-432
| 9 |
Chattanooga |
TN |
CHTGTNNSXCZ |
7473 POWERTEL ATLANTA LICENSES, INC. |
472 |
|
|
|
| 423-433
| A |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-433
| 0 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
| 423-433
| 1 |
Johnson City |
TN |
JHCYTNXCPS0 |
4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN |
956 |
|
|
|
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 >>
Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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