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Definition: Xfinity


TV, Internet, voice, security and cellular services from Comcast, Philadelphia, PA. Branded Xfinity in 2010, for decades Comcast was known for its cable TV service, which began in 1963 as American Cable Systems. Because the same coaxial cable that brought TV into the home and office is also used for Internet access, Xfinity became the largest ISP in the U.S.

Xfinity Services
X1 is the Xfinity cable TV platform, which includes regularly scheduled shows and movies along with third-party TV, news and streaming channels. Xfi is Comcast's mesh Wi-Fi, which distributes a hotspot throughout the home or office. Xfinity voice offers landline telephone service to analog phones by converting digital signals to analog. Xfinity Home provides in-home security monitoring, and Xfinity Mobile is the cellular service.

Xfinity Mobile Cellular Service
Offering "quadruple play" in 2017 (TV, Internet, landline and cellular), Comcast introduced its cellular service as a bonus to Xfinity cable customers. Riding on the Verizon network, Xfinity Mobile charges customers per gigabyte of cellular data but does not charge a phone line fee like other providers. Xfinity Mobile also offers unlimited data plans. Cellular customers can automatically connect to the millions of Xfinity Wi-Fi hotspots in public venues and homes (see Xfinity hotspot). See Xfinity 10G.