Area Code 435
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Codes 435 (Utah).

Click on the pictures below for a larger version.

Apple Valley	Listing Updated: June 2014 Operating Company: South Central Communications CLLI: (was APVYUTXCRS1) Switch Type: Ribbon/Genband/Nortel 1RC Prefixes Served: (435) 877 Notes: This central office no longer has a unique CLLI code and is deprecated in the LERG database as of January 2021. Source: Craig L.
Bear River City	Listing Updated: April 2021 Operating Company: Frontier/Citizens CLLI: BRCYUTXCRS1 Switch Type: Nokia/Siemens/Stromberg-Carlson DCO Remote Prefixes Served: (435) 279, 452 Notes: Source: GSV
Beaver	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: BEVRUTMARS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (435) 438 Notes: Source: GSV
Blanding	Listing Updated: September 2017 Operating Company: Frontier/Citizens CLLI: BLNGUTXCDS0 Switch Type: Ribbon/Genband/Nortel DSF Prefixes Served: (435) 678 Notes: Source: Craig L.
Boulder	Listing Updated: September 2017 Operating Company: South Central Communications CLLI: (was BLDRUTXCRS1) Switch Type: Ribbon/Genband/Nortel 1RC Prefixes Served: (435) 335 Notes: This central office no longer has a unique CLLI code and is deprecated in the LERG database as of January 2021. Source: Craig L.
Brian Head	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: BNHDUTMARS2 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (435) 677 Notes: Source: GSV
Brigham City "Main"	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: BGCYUTMADS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (435) 695, 723, 734 Notes: Source: GSV
Brigham City "Corinne"	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: CRNNUTMARS1 Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 744 Notes: Source: GSV
Bryce Canyon	Listing Updated: July 2016 Operating Company: South Central Communications CLLI: (was BRCNUTXCRS1) Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 834 Notes: This central office no longer has a unique CLLI code and is deprecated in the LERG database as of January 2021. Source: Craig L.
Cannonville Photo 2	Listing Updated: September 2017 Operating Company: South Central Communications CLLI: (was CAVLUTXCRS0) Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 679 Notes: This central office no longer has a unique CLLI code and is deprecated in the LERG database as of January 2021. Source: Craig L.
Castle Dale	Listing Updated: April 2021 Operating Company: Emery Telecom CLLI: CSDLUTXCDS1 Switch Type: Nokia/Siemens EWSD Prefixes Served: (435) 286, 381, 384, 564, 653, 687, 748 Notes: Also serves Green River. Source: GSV
Cedar City	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: CDCYUTMADS0 Switch Type: Ribbon/Genband/Nortel DMS-100/200 Prefixes Served: (435) 586, 865, 867-8 Notes: Source: GSV
Circleville	Listing Updated: September 2017 Operating Company: South Central Communications CLLI: CRVLUTXCRS1 Switch Type: Ribbon/Genband/Nortel RSS Prefixes Served: (435) 577 Notes: This central office no longer has a unique CLLI code and is deprecated in the LERG database as of January 2021. Source: Craig L.
Dutch John	Listing Updated: April 2021 Operating Company: Union Telephone CLLI: DTJHUTXCDS0 Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 885 Notes: Source: GSV
Ephraim	Listing Updated: September 2017 Operating Company: Manti Telecommunications CLLI: (was EPHRUTMARS1) Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (435) 283 Notes: This central office no longer has a unique CLLI code and is deprecated in the LERG database as of January 2021. Source: Craig L.
Fairview	Listing Updated: September 2017 Operating Company: CentraCom CLLI: FRVWUTXCDS0 Switch Type: Ribbon/Genband/Nortel DMS-10 Prefixes Served: (435) 427, 870 (801) 873 Notes: Also serves Soldier Summit and Spanish Fork Canyon. Source: Craig L.
Fielding	Listing Updated: April 2021 Operating Company: Frontier/Citizens CLLI: FDNGUTXCRS1 Switch Type: Nokia/Siemens/Stromberg-Carlson DCO Remote Prefixes Served: (435) 458 Notes: Source: GSV
Fillmore	Listing Updated: July 2008 Operating Company: Frontier/Citizens CLLI: FLMRUTXCDS0 Switch Type: Ribbon/Genband/Nortel DSF Prefixes Served: (435) 743 Notes: Source: GSV
Fountain Green	Listing Updated: April 2021 Operating Company: CentraCom CLLI: FNTGUTXCRS1 Switch Type: Ribbon/Genband/Nortel DMS-10 Remote Prefixes Served: (435) 445 Notes: Source: GSV
Garden City	Listing Updated: April 2021 Operating Company: CentraCom/Bear Lake Communications CLLI: GRCYUTXCDS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (435) 946 Notes: Source: GSV
Green River	Listing Updated: September 2017 Operating Company: Emery Telecom CLLI: (was GNRVUTXCRS2) Switch Type: Nokia/Siemens EWSD RLU Prefixes Served: (435) 564 Notes: This CO has been deprecated and no longer has its own unique CLLI code. The one shown is its last known CLLI code. Source: Craig L.
Gunnison	Listing Updated: September 2017 Operating Company: Gunnison Telecommunications CLLI: GNSNUTXCDS0 Switch Type: Ribbon/Genband/Nortel DMS-10 Prefixes Served: (435) 528 Notes: Source: Craig L.
Halchita	Listing Updated: September 2017 Operating Company: Frontier/Navajo Communications CLLI: HLCHUTXCRL0 Switch Type: Remote Switch (unknown type) Prefixes Served: (435) 739 Notes: Source: Craig L.
Hanksville Photo 2	Listing Updated: September 2017 Operating Company: Emery Telecom/Hanksville Telecom CLLI: HNVLUTNMRS0 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (435) 542 Notes: Source: Craig L.
Hatch	Listing Updated: July 2016 Operating Company: South Central Communications CLLI: (wasHATCUTXCRS1) Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 735 Notes: This central office no longer has a unique CLLI code and is deprecated in the LERG database as of January 2021. Source: Craig L.
Heber City	Listing Updated: August 2014 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: HBCYUTMADS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (435) 654, 657 Notes: Source: Jeff K.
Holden	Listing Updated: May 2023 Operating Company: Frontier/Citizens CLLI: HLDNUTXCRS1 Switch Type: Ribbon/Genband/Nortel 1RC Prefixes Served: (435) 795 Notes: Source: GSV
Kamas	Listing Updated: April 2021 Operating Company: All West Communications CLLI: KAMSUTXCDS2 Switch Type: Metaswitch VP3510 Prefixes Served: (435) 336, 782-3, 785, 793 Notes: Serves multiple ratecenters. Source: GSV
Kanab	Listing Updated: June 2014 Operating Company: South Central Communications CLLI: (was KANBUTXCRS0) Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (435) 644 Notes: This central office no longer has a unique CLLI code and is deprecated in the LERG database as of January 2021. Source: Craig L.
Kanosh	Listing Updated: April 2021 Operating Company: Frontier/Citizens CLLI: KNSHUTXCRS1 Switch Type: Ribbon/Genband/Nortel DMS-10 Remote Prefixes Served: (435) 759 Notes: Source: GSV
La Sal	Listing Updated: April 2021 Operating Company: Frontier/Citizens CLLI: LASLUTXCRS0 Switch Type: Ribbon/Genband/Nortel DMS-10 Remote Prefixes Served: (435) 686 Notes: Source: GSV
Logan "Main"	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: LOGNUTMADS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (435) 713, 716, 750, 752-5, 786-7, 792 Notes: Source: GSV
Logan "Richmond"	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: RCMDUTMARS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (435) 258 Notes: Source: GSV
Logan "Smithfield"	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: SMFDUTMARS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (435) 563 Notes: Source: GSV
Lynndyl	Listing Updated: April 2021 Operating Company: Frontier/Citizens CLLI: LYNDUTXCRS1 Switch Type: Ribbon/Genband/Nortel DMS-10 Remote Prefixes Served: (435) 857 Notes: Source: GSV
Manila	Listing Updated: April 2021 Operating Company: Union Telephone CLLI: MANLUTXCDS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (435) 784 Notes: Source: GSV
Manti	Listing Updated: September 2017 Operating Company: Manti Telecommunications CLLI: MANTUTXCDS0 Switch Type: Ribbon/Genband/Nortel DMS-10 Prefixes Served: (435) 835 Notes: Source: Craig L.
Marysvale	Listing Updated: September 2017 Operating Company: South Central Communications CLLI: (was MRVAUTXCRS1) Switch Type: Ribbon/Genband/Nortel RSS Prefixes Served: (435) 326 Notes: This central office no longer has a unique CLLI code and is deprecated in the LERG database as of January 2021. Source: Craig L.
Meadow	Listing Updated: April 2021 Operating Company: Frontier/Citizens CLLI: MEDWUTXCRS3 Switch Type: Ribbon/Genband/Nortel 1RE Prefixes Served: (435) 842 Notes: Source: GSV
Moab "Main" Photo 2 | Photo 3 | Photo 4 | Photo 5	Listing Updated: September 2017 Operating Company: Frontier/Citizens CLLI: MOABUTXCDS0 Switch Type: Ribbon/Genband/Nortel DMO Prefixes Served: (435) 259, 719 Notes: Source: Craig L.
Moab "Delta"	Listing Updated: April 2021 Operating Company: Frontier/Citizens CLLI: DELTUTXCDS0 DELTUTXCPS0 Switch Type: DS0: Ribbon/Genband/Nortel DMS-10 PS0: Packet End Office (unknown type) Prefixes Served: DS0: (435) 864 PS0: (435) 719 Notes: Source: GSV
Monroe Photo 2	Listing Updated: September 2017 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: MONRUTMARS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (435) 527 Notes: Source: Craig L.
Montezuma Creek	Listing Updated: April 2021 Operating Company: Navajo Communications (Frontier) CLLI: MNCKUTXCRS0 Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 651 Notes: Source: GSV
Monticello Photo 2	Listing Updated: September 2017 Operating Company: Frontier/Citizens CLLI: MNTIUTXCDS0 Switch Type: Ribbon/Genband/Nortel DSF Prefixes Served: (435) 587 Notes: Source: Craig L.
Monument Valley	Listing Updated: September 2017 Operating Company: Frontier/Navajo Communications CLLI: MNVYUTXCRS0 Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 727 Notes: Source: Craig L.
Moroni	Listing Updated: April 2021 Operating Company: Skyline Telecom CLLI: MORNUTXCRS1 Switch Type: Ribbon/Genband/Nortel DMS-10 Remote Prefixes Served: (435) 436 Notes: Source: GSV
Mount Pleasant	Listing Updated: April 2021 Operating Company: CentraCom CLLI: MNPLUTMARS1 Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 462 Notes: Source: GSV
Nephi	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: NEPHUTMADS0 Switch Type: Ribbon/Genband/Nortel DMS-10 Prefixes Served: (435) 623 Notes: Source: GSV
Orderville	Listing Updated: July 2016 Operating Company: South Central Communications CLLI: ORVLUTXCRS0 Switch Type: Ribbon/Genband/Nortel RSS Prefixes Served: (435) 648 Notes: This central office no longer has a unique CLLI code and is deprecated in the LERG database as of January 2021. Source: Craig L.
Panguitch	Listing Updated: September 2017 Operating Company: South Central Communications CLLI: PNGTUTXCDS1 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (435) 616, 676 Notes: Source: Craig L.
Park City	Listing Updated: January 2014 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: PRCYUTMADS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (435) 615, 645, 647, 649, 655, 658, 940 Notes: Source: Craig L.
Parowan	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: PRWNUTMARS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (435) 477 Notes: Source: GSV
Price "Main"	Listing Updated: April 2021 Operating Company: Emery Telcom CLLI: PRICUTMADS0 Switch Type: Ribbon/Genband/Nortel DMS-100/200 Prefixes Served: (435) 613, 636-7 Notes: Source: GSV
Price "East Carbon"	Listing Updated: April 2021 Opeating Company: Emery Telcom CLLI: ECRCUTMARS1 Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 888 Notes: Source: GSV
Price "Helper"	Listing Updated: April 2021 Operating Company: Emery Telcom CLLI: HLPRUTMARS1 Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 472 Notes: Source: GSV
Salina	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: SALNUTMARS1 Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (435) 529 Notes: Source: GSV
Scipio	Listing Updated: April 2021 Operating Company: Frontier/Citizens CLLI: SCIPUTXCRS1 Switch Type: Ribbon/Genband/Nortel 1RC Prefixes Served: (435) 758 Notes: Source: GSV
St. George "Main" Photo 2	Listing Updated: June 2014 Operating Company: CenturyLink/Quest/US West/Mountain Bell CLLI: STGRUTMADS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (435) 251, 628, 634, 652, 656, 673-4, 688, 986 Notes: Source: Craig L.
St. George "Hurricane"	Listing Updated: June 2014 Operating Company: CenturyLink/Quest/US West/Mountain Bell CLLI: HRCNUTMARS1 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (435) 635 Notes: Source: Craig L.
St. George "Leeds"	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: LEDSUTMARS1 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (435) 879 Notes: Source: GSV
St. George "Springdale"	Listing Updated: July 2016 Operating Company: CenturyLink/Quest/US West/Mountain Bell CLLI: SPDLUTMARS1 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (435) 772 Notes: Source: Craig L.
St. George "Veyo"	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: VEYOUTMARS1 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (435) 574 Notes: Source: GSV
St. George "Washington" Photo 2	Listing Updated: June 2014 Operating Company: CenturyLink/Quest/US West/Mountain Bell CLLI: WASHUTMADS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (435) 627 Notes: Source: Craig L.
Thompson	Listing Updated: April 2021 Operating Company: Frontier/Citizens CLLI: THSNUTXCRL1 Switch Type: Remote Switch (unknown type) Prefixes Served: (435) 285 Notes: Source: GSV
Tooele "Main"	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: TOOLUTMADS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (435) 277, 833, 843, 882 Notes: Source: GSV
Tooele "Grantsville"	Listing Updated: April 2021 Operating Company: CenturyLink/Qwest/US West/Mountain Bell CLLI: GTVLUTMARS1 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (435) 884 Notes: Source: GSV
Tremonton	Listing Updated: April 2021 Operating Company: Frontier/Citizens CLLI: TRMNUTXCDS0 Switch Type: Nokia/Siemens/Stromberg-Carlson DCO Prefixes Served: (435) 207, 257 Notes: Source: GSV
Vernal	Listing Updated: April 2021 Operating Company: Strata Networks/Ubta-Ubet Communications CLLI: VRNLUTMADS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (435) 247, 353, 454, 545, 548, 622, 646, 722, 725, 738, 781, 789, 848 Notes: Serves multiple ratecenters. Source: GSV

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