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Comcast Boosts Upstream

DENVER -- Comcast (Nasdaq: CMCSA - News, CMCSK - News), the nation's leading provider of cable, entertainment and communications products and services, today announced it is deploying the second phase of its patent-pending PowerBoost(TM) technology, which will increase customers' broadband performance on upload speed, throughout Colorado this month. The upload speed increase will be included free for all Comcast High-Speed Internet customers with 6 Mbps and 8 Mbps service plans.

Following the successful launch of PowerBoost technology on download speed last year, Comcast will now extend the benefits of the technology to give Comcast High-Speed Internet customers additional upstream speed. Customers can now expect upstream speeds of up to 2 Mbps when uploading content such as photos and videos, or e-mailing larger files.

Comcast first introduced the PowerBoost technology in June 2006 for downstream speed in response to customers' increasing appetites for bandwidth- intensive activities such as downloading videos, photos, games and music. PowerBoost technology enables customers to download with speeds of up to 12 Mbps or 16 Mbps, depending on their service plan, for no additional charge. PowerBoost technology for downstream speed is now fully deployed across Comcast's national footprint.

The PowerBoost technology works by utilizing additional capacity already built into Comcast's advanced fiber network to provide customers with extra bursts of download, and now upload, speed. Customers do not need to download anything or contact Comcast to receive the PowerBoost enhancer since it works with today's compatible cable modems, home networking gateways, and Comcast voice eMTAs (combination high-speed Internet modems and phone adapters).

Comcast is launching the PowerBoost technology for upload speed on a market-by-market basis with completion expected before year's end.

Comcast Corp. (Nasdaq: CMCSA, CMCSK)
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