CMCSA · Earnings call · 2026Q3T · Full report

Wireless Customer Growth

COMCAST CORP · 2026-10-22 · Importance 36 · Surprise 40

Comcast added 368,000 net wireless lines in the quarter, bringing its total to 10.6 million, up 18% year over year and 40% over two years. Wireless penetration reached nearly 18% of its residential broadband base, while Comcast estimated it had about 7% of addressable wireless lines in its footprint. The company said it converted 70% of free lines into paid relationships, and premium unlimited plans rose to approximately 40% of postpaid phone connects from 30% in the prior quarter. Management cited mobile as a substantial growth opportunity, while noting that competition and switching activity affected trends.

Key facts

• Comcast said that in 2026 it would have its best mobile line net-add year in company history.
• Comcast said wireless was having its best year and that 7% of its lines were the focus of a future plan to rethink the business.
• Approximately half of residential postpaid phone connects came from customers taking a free line, and Comcast was converting 70% of those lines into paying relationships.
• Comcast wireless represented nearly 18% penetration of its residential broadband base and approximately 7% of addressable wireless lines in its footprint.
• Approximately 90% of Xfinity Mobile traffic travels over Wi-Fi.
• Comcast said it had more than 10 million wireless relationships and lines and was considering how to accelerate that business.
• Comcast lost 144,000 broadband subscribers and added 368,000 net wireless lines in the third quarter.
• Premium unlimited plans represented approximately 40% of postpaid phone connects, up from 30% in the prior quarter, and premium customers accounted for roughly 25% of Comcast's phone base.