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Area Code 309
Telephone Central Office
Building Pictures
The following are representative examples of telephone central office buildings in Area Code 309 (Illinois).
Click on the pictures below for a larger version.
Aledo
Listing Updated:
February 2021Operating Company:
Frontier/CitizensCLLI:
ALEDILXDDS0Switch Type:
Nokia/Siemens/Stromberg-Carlson DCOPrefixes Served:
(309) 582Notes:
Source: GSV
Bloomington
"Main"
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
BLTNILXDDS0Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAXPrefixes Served:
(309) 556-7, 766, 820-1, 823, 827-9, 994Notes:
Source: GSV
Bloomington
"East"
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
BLTNILXTDS0Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAXPrefixes Served:
(309) 661-5Notes:
Source: GSV
Bloomington
"Normal"
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
BLTNILXNDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 268, 443-4, 436, 438, 451-2, 454, 622, 735, 763, 862, 888Notes:
Source: GSV
Canton
"Main"
Listing Updated:
February 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CNTNILCNDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(309) 647, 649Notes:
Source: GSV
Chillicothe
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
CHLCILXDDS0Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAXPrefixes Served:
(309) 274Notes:
Source: GSV
Dunlap
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
DNLPILXDDS0Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAXPrefixes Served:
(309) 243Notes:
Source: GSV
East Moline
"Main"
Listing Updated:
July 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
EMLNILEMDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 751-2, 755Notes:
Source: Ryan C.
East Moline
"Green Rock"
Listing Updated:
May 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
GRRKILESDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 748-9, 765, 792, 796Notes:
Source: Ryan C.
Photographers note:
Not only does this central office serve my home, it serves the John Deere World Headquarters. I was told I was very lucky to be served by this CO, as it was always the first to get upgrades due to it serving the headquarters! Brick inscription on building reads 1962.
Eureka
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
EURKILXDDS0Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAXPrefixes Served:
(309) 304, 467Notes:
Source: GSV
Farmer City
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
FMCYILXDDS0Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAXPrefixes Served:
(309) 928Notes:
Source: GSV
Galesburg
"XD"
Listing Updated:
February 2021Operating Company:
Brightspeed/Centurylink/CenturyTel/Gallatin River CommunicationsCLLI:
GLBGILXDDS0Switch Type:
Ribbon/Genband/Nortel DMS-100/200Prefixes Served:
(309) 341-3, 345
Notes:
Source: GSV
Galva
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
GALVILXDDS0Switch Type:
Nokia/Siemens/Stromberg-Carlson DCOPrefixes Served:
(309) 932Notes:
Source: GSV
Geneseo
Listing Updated:
February 2021Operating Company:
Geneseo CommunicationsCLLI:
GENSILXDDS1Switch Type:
Ribbon/Genband/Nortel DMS-500Prefixes Served:
(309) 441, 944-6, 949Notes:
Source: GSV
Kewanee
Listing Updated:
March 2021Operating Company:
Frontier/Verizon/GTECLLI:
KEWNILXDDS0Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAXPrefixes Served:
(309) 852-4, 856Notes:
Source: Ryan C.
Macomb
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
MCMBILXDDS0Switch Type:
Ribbon/Genband/Nortel DMS-100/200Prefixes Served:
(309) 298, 833, 836-7Notes:
Source: GSV
Moline
"Main"
Listing Updated:
February 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
MOLNILMLDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 524, 736, 743, 757, 762, 764, 797Notes:
Source: GSV
Monmouth
Listing Updated:
February 2021Operating Company:
Frontier/CitizensCLLI:
MNMOILXDDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 457, 734Notes:
Source: GSV
Morton
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
MRTNILXDDS2Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(309) 263, 266, 284, 866Notes:
Source: GSV
Pekin
Listing Updated:
February 2021Operating Company:
Brightspeed/Centurylink/CenturyTel/Gallatin River CommunicationsCLLI:
PEKNILXDDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 346-7, 353, 447-8, 885Notes:
Source: GSV
Peoria
"Bluffs"
Listing Updated:
February 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
PEORILPBDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 566, 679, 681-2, 685-8Notes:
Source: GSV
Peoria
"East"
Listing Updated:
February 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
EPERILPEDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 427, 694, 698-9Notes:
Source: GSV
Peoria
"Jefferson"
Listing Updated:
February 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
PEORILPJDS1Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 494-5, 497, 624, 636, 637, 655, 669, 671-7, 680, 992, 999Notes:
Source: GSV
Peoria
"North"
Listing Updated:
February 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
PEORILPNDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(309) 589, 683, 690-3Notes:
Source: GSV
Port Byron
Listing Updated:
February 2021Operating Company:
Frontier/CitizensCLLI:
PTBYILXDDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 523Notes:
Source: GSV
Rock Island
"Main"
Listing Updated:
February 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
RCISILRIDS1Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(309) 206, 558, 732, 779, 786, 788, 793-4Notes:
Source: GSV
Rock Island
"Milan"
Listing Updated:
January 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
MILNILMIDS0Switch Type:
Nokia/Siemens EWSD DE5 RCUPrefixes Served:
(309) 756, 787Notes:
Source: Ryan C.
Sunnyland
Listing Updated:
February 2021Operating Company:
Frontier/Verizon/GTECLLI:
SNLDILXDDS0Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAXPrefixes Served:
(309) 745, 819Notes:
Source: GSV
Visit other Illinois Area Codes: 217 309 312 618 630 708 773 815 847
Visit nearby regions: Indiana Iowa Kentucky Missouri Wisconsin
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