Comcast ( CMCSA), Time Warner ( TWX) and closely held Cox are said to be close to reaching an agreement to sell wireless services through Sprint Nextel's ( S) wireless network.

News of the linkup was first reported in The Wall Street Journal, which cited people familiar with discussions. A deal is expected to be finalized within weeks.

Competition between telcos and cable operators has heated up of late. Telephone companies such as Verizon ( VZ) have started to roll out television services in select markets, while the cable companies have been rolling out telephone services.

The Sprint brand would be used under the terms of the service agreement, according to The Wall Street Journal. In return, the cable companies might have access to part of the Sprint-owned radio spectrum.

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