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Area Code 641
Telephone Central Office
Building Pictures
The following are representative examples of telephone central office buildings in Area Code 641 (Iowa).
Click on the pictures below for a larger version.
Marshalltown
Listing Updated:
April 2020Operating Company:
CenturyLink/Qwest/US West/Northwestern BellCLLI:
MRTWIASODS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(641) 752-4, 844Notes:
Source: GSV
Mason City
Listing Updated:
April 2020Operating Company:
CenturyLink/Qwest/US West/Northwestern BellCLLI:
MSCYIATCDS0Switch Type:
Ribbon/Genband/Nortel DMS-100/200Prefixes Served:
(641) 380, 421-4, 428, 494Notes:
Source: GSV
New Hampton
Listing Updated:
August 2013Operating Company:
Windstream Communications /Iowa Telecom/United TelephoneCLLI:
NHTNIAXCDS0Switch Type:
Ribbon/Genband/Nortel DMS-10Prefixes Served:
(641) 394Notes:
An addition was added to the building in the early 1990's. This Nortel DMS switch is now host for 15 remote switches in the surrounding rural communities in area codes 319, 563 & 641. Source: GJB
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Copyright 2020 Telephone Central Office Building
Pictures |