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Area Code 712
Telephone Central Office
Building Pictures
The following are representative examples of telephone central office buildings in Area Code 712 (Iowa).
Click on the pictures below for a larger version.
Council Bluffs
"Downtown"
Listing Updated:
April 2020Operating Company:
CenturyLink/Qwest/US West/Northwestern BellCLLI:
CNBLIAWADS1Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(712) 322-3, 325-6, 328-9, 352, 388, 396Notes:
Source: GSV
Sioux City
"Downtown"
Listing Updated:
April 2020Operating Company:
CenturyLink/Qwest/US West/Northwestern BellCLLI:
SXCYIADTDS1Switch Type:
Ribbon/Genband/Nortel DMS-100/200Prefixes Served:
(605) 232, 235
(712) 233-4, 252, 255, 258, 277, 279, 293-4Notes:
Also serves North Sioux City, SD. Source: GSV
Sioux City
"Leeds"
Listing Updated:
April 2020Operating Company:
CenturyLink/Qwest/US West/Northwestern BellCLLI:
SXCYIALDRS2Switch Type:
Ribbon/Genband/Nortel Remote Switching CenterPrefixes Served:
(712) 239Notes:
Source: GSV
Sioux City
"Morningside"
Listing Updated:
April 2020Operating Company:
CenturyLink/Qwest/US West/Northwestern BellCLLI:
SXCYIAMSDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(712) 266, 274, 276Notes:
Source: GSV
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Copyright 2020 Telephone Central Office Building
Pictures |