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The Franklin Center is a 60-story supertall skyscraper in the Loop neighborhood of downtown Chicago.Completed in 1989 as the AT&T Corporate Center to consolidate the central region headquarters of the American Telephone & Telegraph Company (AT&T), [2] it stands at a height of 1,007 ft (307 m) and contains 1.7 million sq ft (160,000 m 2) of floor space. [3]
Map of LATAs in the US. Local access and transport area (LATA) is a term used in U.S. telecommunications regulation.It represents a geographical area of the United States under the terms of the Modification of Final Judgment (MFJ) entered by the United States District Court for the District of Columbia in Civil Action number 82-0192 or any other geographic area designated as a LATA in the ...
The AT&T Madison Complex Tandem Office is a 17-story, 79 m (259 ft) building in Los Angeles, California, completed in 1961. With its microwave tower, used through 1993, bringing the overall height to 137 m (449 ft), it is the 47th tallest building in Los Angeles.
It is owned by AT&T through AT&T Teleholdings, formerly Ameritech. Their headquarters are at 225 West Randolph St., Chicago, IL. After the 1984 Bell System Divestiture, Illinois Bell became a part of Ameritech, one of the 7 original Regional Bell Operating Companies. The Illinois Bell name continued to be used until January 1993, when Ameritech ...
This page was last edited on 21 February 2012, at 13:50 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
A U.S. Geological Survey satellite image shows the site of the "Big Hole" Project Office including its two above ground tropospheric scatter antennas.. A Project Office located in Chatham County, North Carolina, colloquially known as "Big Hole", came online in the mid-1960s and was described by area residents and persons employed in the construction of the site as being "department-store sized ...
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This was the first system of its kind for automated forwarding of calls between toll switching centers, but it served customers only for regional toll traffic. It established initial experience with automatic toll switching for the design of a nationwide effort that was sometimes referred to as Nationwide Operator Toll Dialing.