Philadelphia-based Comcast, which provides cable TV, phone and other services in the Seattle area, hit a 10-year record for adding subscribers in a single quarter.
The Wall Street Journal reported that the record is a sign its strategy of bundling phone with cable and high speed Internet services is paying off.
In fact, GigaOM, the tech blog, reported that Comcast has almost hit $1 billion ($955 million) in sales from phone revenues alone.
The staggering figure shows that the cable giant is moving much more quickly onto phone company turf than vice versa, it wrote.
Comcast offers phone service through voice over IP, or by sending calls over the Internet. Comcast reported that it signed up 1.5 million digital voice subscribers in 2006. It has a total of 1.9 million, which GigaOM points out is roughly the number that independent VoIP provider Vonage has.