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Area Code 423
Telephone Central Office
Building Pictures
The following are representative examples of telephone central office buildings in Area Code 423 (southeastern Tennessee).
Click on the pictures below for a larger version.
Athens
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
ATHNTNMADS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(423) 507, 649, 744-6Notes:
Photo 2 source: Larry P. (August 2015). Current photo source: GSV
Benton
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
BNTNTNMTRS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(423) 338
(706) 328Notes:
Also serves Tennga, GA.
Photo 2 source: Larry P. (September 2016). Current photo source: GSV
Blountville
Listing Updated:
September 2012Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
BUVLTNXARS0Switch Type:
Ribbon/Genband/Nortel RSCPrefixes Served:
(423) 279, 323, 325, 354, 917Notes:
Photo 2 source: Craig L. (September 2012). Current photo source: GSV
Bulls Gap
Listing Updated:
September 2012Operating Company:
at&t/BellSouth/South Central BellCLLI:
BLGPTNMARS0Switch Type:
Nokia/Siemens EWSD RSUPrefixes Served:
(423) 235, 601Notes:
Photo 2 source: Larry P. (September 2012). Current photo source: GSV
Charleston
Listing Updated:
August 2015Operating Company:
at&t/BellSouth/South Central BellCLLI:
CHTNTNMTRS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(423) 336, 780Notes:
Source: Larry P.
Chattanooga
"Brainerd"
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
CHTGTNBRDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 296, 485, 490, 499, 510, 553, 846, 855, 892-4, 899, 954
(706) 891Notes: Photo 2 is from July 2008. Photo 3 is from March 2006 (when this was a BellSouth office.)
Chattanooga
"Dodds"
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
CHTGTNDTDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(423) 493, 495, 622, 624, 629, 697-8Notes:
Photo 2 from March 2006. Current photo source: GSV. CO building is behind a fence behind a business.
Chattanooga
"Harrison"
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
CHTGTNHTDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 326, 344Notes:
Photo 2 from March 2006. Current photo source: GSV.
Chattanooga (Hixson)
"Middle Valley"
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
CHTGTNMVDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 842-3, 847Notes:
Photos 2 and 3 from March 2006. Current photo source: GSV.
Chattanooga
"Ninth Street"
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
CHTGTNNSDS0
CHTGTNNSDS1Switch Type:
DS0: Ribbon/Genband/Nortel DMS-100
DS1: Nokia/Alcatel/Lucent 5ESSPrefixes Served:
DS0: (423) 634
DS1: (423) (423) 209, 265-7, 321, 386, 425, 642, 668, 751-2, 755-7, 763, 778, 785
(706) 630Notes:
MLK Blvd. was originally Ninth Street, hence the name of the central office. Photo 2 from July 2008. Photos 5-7 are from the original photo set in March 2006 when this was still a BellSouth office. Current photo source: GSV
Chattanooga
"Red Bank"
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
CHTGTNRBDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 870, 874-7Notes:
Photos 2-5 from March 2006. Current photo source: GSV
Chattanooga
"Saint Elmo"
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
CHTGTNSEDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 821, 822, 825
(706) 820Notes:
Photo 2 from March 2006. Current photo source: GSV
Chattanooga
"Signal Mountain"
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
CHTGTNSMRS0 (Telcordia)
CHTGTNSMRS5 (NANPA)Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(423) 517, 883, 886Notes:
Photo 2 from March 2006. Current photo source: GSV.
Church Hill
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
CHHLTNXARS0Switch Type:
Ribbon/Genband/Nortel RSCPrefixes Served:
(423) 256, 357Notes:
Photo 2 from Larry P. (June 2014). Current photo source: GSV
Cleveland
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
CLEVTNMADS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 339, 472-3, 476, 478-9, 559, 614, 728, 961Notes:
Also serves the Georgetown ratecenter. Photo 2-3 source: Larry P. (August 2015). Current photo source: GSV
Elizabethton
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
ELTNTNXADS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(423) 542-3, 547Notes:
Photo 2 source: Larry P. (July 2015). Current photo source: GSV
Englewood
Listing Updated:
September 2016Operatng Company:
TDS Telecom/Tellico TelephoneCLLI:
ENWDTNXADS1Switch Type:
Digital Switch (unknown type)Prefixes Served:
(423) 885, 887Notes:
Source: Larry P.
Etowah
Listing Updated:
September 2016Operating Company:
at&t/BellSouth/South Central BellCLLI:
ETWHTNMTRS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(423) 263Notes:
Source: Larry P.
Greeneville
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
GRVLTNXADS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 359, 636, 638-9, 783, 787, 798Notes:
Photo 2 source: Larry P. (July 2014). Current photo source: GSV
Hampton
Listing Updated:
July 2015Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
HMPNTNXARS0Switch Type:
Ribbon/Genband/Nortel RSCPrefixes Served:
(423) 725, 896Notes:
Source: Larry P.
Johnson City
"Main"
Listing Updated:
January 2013Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
(was JHCYTNXADS0)Switch Type:
(was Ribbon/Genband/Nortel DMS-100)Prefixes Served:
NoneNotes:
This CO is no longer in use and the prefixes served out of it are now served out of Johnson City "North" (see below). Source: Jason B.
Johnson City
"North"
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
JHCYTNXCPS0Switch Type:
Packet Switch (unknown type)Prefixes Served:
(423) 232, 262, 282-3, 410, 431, 433-4, 439, 461, 610, 854, 915, 926, 928-9, 938, 952-3, 975, 979Notes:
Photo 2 source:Jason B. (January 2013). Current photo source: GSV
Kingsport
"XA"
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
KGPTTNXADS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(276) 225
(423) 224, 229-30, 245-7, 378, 390, 392, 578, 857Notes:
Also serves Morrison City, VA. Photos 3-4 source: Larry P. (June 2014). Current photo source: GSV
Kingsport
"XC"
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
KGPTTNXCRS0Switch Type:
Ribbon/Genband/Nortel RSCPrefixes Served:
(423) 288, 343Notes:
Photo 2 source: Larry P. (July 2015). Current photo source: GSV
La Folette
Listing Updated:
July 2021Operating Company:
at&t/BellSouth/South Central BellCLLI:
LFLTTNMADS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 562-3, 566, 907Notes:
Photo 2 source: Larry P. (July 2015). Current photo source: GSV
Limestone
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
LMSTTNXADS0Switch Type:
Ribbon/Genband/Nortel DMS-10Prefixes Served:
(423) 257Notes:
Photo 2 source: Larry P. (June 2014). Current photo source: GSV
Madisonville
Listing Updated:
September 2012Operating Company:
at&t/BellSouth/South Central BellCLLI:
MDVITNMTDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 420, 442Notes:
Source: Larry P.
Midway (Sullivan)
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
MDWYTNXARS0Switch Type:
Ribbon/Genband/Nortel RSCPrefixes Served:
(423) 239Notes:
Photo 2 source: Larry P. (July 2015). Current photo source: GSV
Morristown
Listing Updated:
June 2014Operating Company:
at&t/BellSouth/South Central BellCLLI:
MRTWTNMADS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 317-8, 492, 522, 581, 585-7
(865) 993Notes:
Also serves Bean Station. Source: Larry P.
Mosheim
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
MOSHTNXARS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(423) 422Notes:
Photo 2 source: Larry P. (June 2014). Current photo source: GSV
Newport
Listing Updated:
July 2015Operating Company:
at&t/BellSouth/South Central BellCLLI:
NWPTTNMTDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(423) 613, 623, 625
(865) 509Notes:
Also serves Chestnut Hill. Source: Larry P.
Niota
Listing Updated:
August 2015Operating Company:
TDS/Tellico Telephone CompanyCLLI:
NIOTTNXARS0Switch Type:
Nokia/Siemens/Stromberg Carlson DCO DCLPrefixes Served:
(423) 568Notes:
Source: Larry P.
Ooltewah
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/CenturyTel/Ooltewah-Collegedale TelephoneCLLI:
OLTWTNXADS1Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(423) 238Notes: Originally a small independent (Ooltewah-Collegedale Telephone), was bought by CenturyTel and is now Brightspeed/Centurylink. Photos 2-5 are from July 2008. Current photo source: GSV. Photo 2 shows customer service office on left, switch building on right. Photo 3 is close-up of customer service office, Photo 4 is close-up of switch building, and Photo 5 is an old Charge-A-Call phone for people to order service or report an outage.
Rogersville
Listing Updated:
September 2012Operating Company:
at&t/BellSouth/South Central BellCLLI:
RRVLTNMADS0Switch Type:
Nokia/Siemens/Stromberg Carlson DCOPrefixes Served:
(423) 272, 921Notes:
Source: Larry P.
Sullivan Gardens
Listing Updated:
July 2021Operating Company:
Brightspeed/Centurylink/Embarq/Sprint/United TelephoneCLLI:
SLGRTNXARS0Switch Type:
Ribbon/Genband/Nortel RLCPrefixes Served:
(423) 349, 516Notes:
Photo 2 source: Larry P. (July 2015). Current photo source: GSV
Surgoinsville
Listing Updated:
June 2014Operating Company:
at&t/BellSouth/South Central BellCLLI:
SRVLTNMADS0Switch Type:
Nokia/Siemens/Stromberg Carlson DCO Remote Network SwitchPrefixes Served:
(423) 345Notes:
Source: Larry P.
Sweetwater
Listing Updated:
August 2015Operating Company:
at&t/BellSouth/South Central BellCLLI:
SWTWTNMTRS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(423) 337, 351
(865) 213Notes:
Also serves the West Sweetwater ratecenter. Source: Larry P.
Vonore
Listing Updated:
September 2016Operating Company:
TDS Telecom/Tellico TelephoneCLLI:
VONRTNXADS1Switch Type:
Digital Switch (unknown type0Prefixes Served:
(423) 792, 884Notes:
Source: Larry P.
Visit other Tennessee Area Codes: 423 615 731 865 901 931
Visit nearby regions: Alabama Arkansas Georgia Kentucky Mississippi Missouri North Carolina Virginia
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Pictures |