Comcast has quietly made some changes to its Xfinity Mobile plans, including revised data policies for all customers on unlimited plans and the removal of by-the-Gig packages for new customers.
Comcast said it has removed the “data threshold” it had applied to its primary Unlimited plan, essentially matching what it offers to customers on the Premium Unlimited plan launched about a year ago. Previously, customers on the Unlimited plan would see their speeds reduced after they consumed 30 Gigabytes or more of mobile data in a given month.
Comcast confirmed that the change took effect on April 8 and that the Xfinity Mobile website is being updated to reflect it. Matthew Keys, publisher of TheDesk.net, recently posted on LinkedIn about how Comcast is communicating this change to customers.
“Xfinity Mobile is always evolving to deliver a better customer experience, and we’re now giving all customers unlimited high speed data,” a Comcast official said in an emailed response to questions from Light Reading. “Customers on earlier generations of our unlimited plans will no longer have data thresholds. While this was once a common industry practice, this change ensures Xfinity Mobile customers get a more consistent, high‑quality experience at an incredible value.”
Differences remain
Despite the data usage update, some key differences remain between Comcast’s Unlimited and Unlimited Premium plans.
Unlimited, regularly starting at $40 per month and $20 for each additional line, limits video streaming to standard definition (480p). Comcast is currently offering a free line of Unlimited for a year.
Premium Unlimited allows for 4K video streaming and supports a relatively new “Elite Upgrade” program that lets customers upgrade to a new device up to two times per year. Premium Unlimited is normally $50 per month for the first line, and $30 per month for each additional line. Comcast’s current promo offers Premium Unlimited for $10 per month for the first year.
Both of Comcast’s unlimited plans come with a certain amount of mobile hotspot data before speeds are reduced. For Premium Unlimited, that monthly threshold is 30GB.
Most Xfinity Mobile subs already on unlimited plans
Though Comcast no longer sells a by-the-Gig option, existing customers on that plan can keep it until they decide to change to an unlimited plan.
Comcast confirmed that the vast majority of its Xfinity Mobile lines are on unlimited plans. Comcast ended 2025 with 9.3 million mobile lines. The company is scheduled to release Q1 2026 results on April 23.
“Over time, we saw a clear shift in customer preference toward unlimited plans, with the majority of customers either choosing or moving to unlimited options on their own. In response, we simplified our plan lineup to focus on unlimited offerings that better align with how customers are using mobile data today and provide a more predictable and straightforward experience,” the Comcast official explained.
The removal of the by-the-Gig option for new customers “removes an irritation factor” that surfaces as bills rise when mobile customers use more data than expected in a given month, said Roger Entner, founder and analyst at Recon Analytics.
Charter Communications still offers a by-the-gig plan alongside its Unlimited and Unlimited Plus packages. Charter does not promote by-the-Gig on its Spectrum Mobile home page, but it does reference the offer on its mobile plans webpage.
Comcast still offers a prepaid mobile service for phones and tablets under the “Now” brand for $25 per month per line.
100GB threshold remains
Notably, Comcast’s unlimited plans still adhere to a policy in which mobile speeds could be deprioritized during times of network congestion and when a customer chews up 100GB or more of mobile data in a given month.
“The 100GB threshold remains unchanged, but it does not result in a hard speed cap or throttling,” Comcast explained. “The 100GB threshold relates to deprioritization, which only occurs during times of network congestion. Customers still have access to high-speed data, and any change in performance beyond 100GB is temporary and dependent on network conditions – not a fixed reduction in speed.”
Comcast reasoned that this helps balance individual customer performance with overall network reliability. The operator estimates that about 90% of Xfinity Mobile traffic is offloaded on Wi-Fi, with customers getting to 1-Gig speeds when their smartphones are connected to one of Comcast’s 23 million Wi-Fi hotspots.
Both Comcast and Charter Communications’ Wi-Fi-fueled speed boosts are on the rise, according to a new report from Ookla. Ookla found that from Q1 2023 to Q1 2026, Xfinity Mobile grew its speeds by 4.4x, while Spectrum Mobile nearly tripled its speed gains over that same period.
Entner said these changes give Comcast a more streamlined mobile offering and should improve churn while delivering an increase in average revenue per user (ARPU) over time.
“It makes everything a lot cleaner,” Entner said, adding that he wonders if this also means that Comcast and Verizon, the operator’s MVNO partner, have wrapped up their latest renegotiation.
Fresh competitive pressure
Coincidentally, the changes also come about as AT&T gets more aggressive on the home broadband/mobile convergence front with its new OneConnect plans.
While OneConnect is for new customers in fiber network locations, Entner said on his podcast that it’s a “very, very attractive offer,” and that the “next logical step” is for AT&T to offer it to existing customers. AT&T might also try to develop a version of OneConnect for its fixed wireless access customers, he added.
“This attacks cable head-on. This is designed to be a cable killer, basically,” Entner said of OneConnect.