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Comcast was started in 1963 by Ralph J. Roberts, Daniel Aaron, and Julian A. Brodsky, Warren "Pete" Musser, of Harrisburg, who brought the first deal to Ralph Roberts to buy his newly developed cable system in Tupelo, Mississippi. The company was registered in Pennsylvania in 1969, under the name Comcast Corporation from American Cable Systems. The current name "Comcast" is a joining of the words "Communication" and "Broadcast".

Comcast has maximum stakes and are owner of Comcast-Spectator, Comcast SportsNet (in Chicago, Comcast Television (in Michigan), Philadelphia, Washington DC/Baltimore, MD, the San Francisco Bay Area, the Pacific Northwest and metro Sacramento), Entertainment Television, Style Network, G4, The Golf Channel and Versus (formerly known as Outdoor Life Network) and they became owners over a period of years. In 2006, Comcast also ventured into televisions and so they started a new sports channel in cooperation with Major League Baseball's New York Mets, SportsNet New York in the greater New York City region.

Comcast also provides and owns a variety network known as Comcast Network, however they are available exclusively to Comcast and Cablevision subscribers and their is a subscription fees for this. The channel telecasts news, sports, and entertainment and places emphasis in Philadelphia and the Baltimore/Washington, D.C. areas, though the channel is also available in New York, Pittsburgh, and Richmond. In August 2004, Comcast launched a channel called CET (Comcast Entertainment Television). It is only available to Colorado Comcast subscribers. It focuses on various people from all walk of life in Colorado, it has special tie ups with Colorado mayor for marketing brand Colorado. It also carries some NHL & NBA Games when Altitude Sports & Entertainment is carrying the NBA or NHL. In January 2006, CET became the primary channel for Colorado's Emergency Alert System in the Denver Metro Area.

Comcast has various offers according to the need of the people like downstream speeds of up to 1, 12, 16, 22 or 50 Mbit/s and upstream speeds of .384, 1, 2, 5 or 10 Mbit/s. These various speed options are possible only because of a particular configuration file into the modem. According to the Comcast customers are provided with dynamic IP addresses so which helps them to overcome that congestion actor.

Comcast has a unique policy of terminating broadband customers who use excessive bandwidth, however the true definition of that term is yet not known. Comcast spokesman Charlie Douglas said the company defines "excessive use" as downloading of 30,000 songs, 250,000 pictures or 13 million emails in a month.

Rumors were spread in Comcast that it has levied a 250GB per month cap on downloads. The firm has also changed their network management to reflect the new policy. The 250 GB is the sum of both upload and download for the total limit. If a user exceeds this cap, on a first offense, a warning email is sent or phone call will be issued with information on how to check bandwidth usage by suggesting software monitoring programs or any other kind of help. On the second mistake, the user service would be terminated for one year.

City:	Calumet City
State:	Illinois
Zip Code:	60409
County:	Cook
County Population:	5303683
Time Zone:	Central

Type:	Landline
Date of registration:	25/01/1998
Time:	02/15/2012 14:16:12 PM
Rate Center:	Lansing
Switch CLLI:	OKBRILOADC2
OCN:	16980