Area Codes 860 & 959
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Codes 860 and 959 (Connecticut).

Click on the pictures below for a larger version.

Canaan	Listing Updated: May 2016 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: CNANCT00RS0 Switch Type: Alcatel/Lucent 5ESS Remote Prefixes Served: (860) 824 Notes:
Canton	Listing Updated: May 2016 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: CNTNCT00RS0 Switch Type: Alcatel/Lucent 5ESS Remote Prefixes Served: (860) 693 Notes:
Enfield "01"	Listing Updated: June 2015 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: ENFDCT01DS0 Switch Type: Alcatel/Lucent 5ESS Prefixes Served: (860) 253, 741, 745-6 Notes:
Hartford Photo 2 | Photo 3 | Photo 4	Listing Updated: June 2015 / April 2014 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: HRFRCT03DS0 HRFRCT03DS1 HRFRCT03DS3 Switch Type: DS0: Genband/Nortel DMS-100 DS1: Alcatel/Lucent 5ESS DS3: Alcatel/Lucent 5ESS Prefixes Served: DS0: (860) 251, 270, 418, 422, 424, 504, 560, 595, 724, 765, 951 DS1: (860) 273, 277, 296, 403, 534, 545, 566, 692, 695, 702, 714, 723, 756-7, 947, 952-3, 956, 972, 986 DS3: (860) 240-1, 244, 246-7, 249, 275, 278, 280, 293, 297, 299, 308, 493, 520, 522, 524-5, 527, 541, 543, 547-9, 722, 725, 727-8, 948, 987 Notes: Photos 3 and 4 were when this was AT&T
Hartford "Bloomfield"	Listing Updated: April 2014 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: BLFDCT00DS0 Switch Type: Genband/Nortel DMS-100 Prefixes Served: (860) 242-3, 286, 726, 768-9 Notes:
Hartford "East Hartford (Brewer)" Photo 2	Listing Updated: June 2014 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: EHRTCT02DS0 Switch Type: Alcatel/Lucent 5ESS Prefixes Served: (860) 568-9, 895 Notes:
Hartford "East Hartford (Chapman)"	Listing Updated: June 2014 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: EHRTCT01DS0 Switch Type: Alcatel/Lucent 5ESS Prefixes Served: (860) 282, 289-91, 528, 557, 565, 610, 622 Notes:
Hartford "Newington"	Listing Updated: April 2014 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: NWNTCT00DS0 Switch Type: Alcatel/Lucent 5ESS Prefixes Served: (860) 353, 594, 660, 665-7, 696, 755, 878, 998 Notes:
Norwich	Listing Updated: May 2013 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: NRWCCT00DS1 Switch Type: Alcatel/Lucent 5ESS Prefixes Served: (860) 204, 312, 425, 823, 859, 862, 885-7, 889, 892 Notes: Source: GSV
Norfolk Photo 2	Listing Updated: May 2016 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: NRFLCT00RS0 Switch Type: Alcatel/Lucent 5ESS Remote Prefixes Served: (860) 542 Notes:
Plainfield Photo 2	Listing Updated: June 2013 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: PLFDCT00DS0 Switch Type: Alcatel/Lucent 5ESS Prefixes Served: (860) 230, 546, 564 Notes: Also serves the Canterbury ratecenter. Source: Roberto in MA.
Windsor Photo 2	Listing Updated: April 2014 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: WNDSCT00DS0 Switch Type: Genband/Nortel DMS-100 Prefixes Served: (860) 285, 298, 580, 607, 624, 683, 687-8, 731, 905 Notes:
Windsor Locks Photo 2 | Photo 3	Listing Updated: June 2015 / June 2013 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: WLKSCT00DS0 Switch Type: Alcatel/Lucent 5ESS Prefixes Served: (860) 204, 312, 425, 823, 859, 862, 885-7, 889, 892 Notes: Photo 3 was when this was AT&T.
Winstead	Listing Updated: May 2016 Operating Company: Frontier/at&t/SBC/Southern New England Telephone CLLI: WNSTCT00DS0 Switch Type: Alcatel/Lucent 5ESS Prefixes Served: (860) 379, 738 Notes: