Nearly every wireless provider in the United States is intentionally slowing down your data service, detrimentally affecting smartphone apps and video streaming.

That is the conclusion of researchers at Northeastern University, University of Massachusetts — Amherst and Stony Brook University, studying the results of more than 100,000 Wehe app users that have run 719,417 tests in 135 countries verifying net neutrality compliance, before and after the open internet rules were repealed in the U.S. earlier this year.

The raw data collected from the app is used as part of a validated, peer-reviewed method of determining which ISPs are throttling their customers’ connections and what services are being targeted.

Nearly Every Mobile Provider Is Throttling Your Speed, Even on “Unlimited” Plans

The researchers concluded that nearly every wireless provider is throttling at least one streaming video service, some reducing speeds the most for customers on budget priced plans while higher value customers are throttled less. No ISP consistently throttled all online video, setting up an unfair playing field for companies that benefit from not being throttled against those that are. Few customers noticed much difference in the performance of streaming video  after the repeal of net neutrality in the U.S., largely because the wireless companies involved — AT&T, Verizon, T-Mobile, Sprint and others — were already quietly throttling video.

“Our data shows that all of the U.S. Cellular ISPs that throttled after June 11th were already throttling prior to this date,” the researchers wrote. “In short, it appears that U.S. Cellular ISPs were ignoring the [former FCC Chairman Thomas] Wheeler FCC rules pertaining to ‘no throttling’ while those rules were still in effect.”

Summary of Detected Throttling

For each ISP, the researchers included tests only where a user’s set of tests indicated differentiation (speed throttling of specific apps or services) for at least one app and did not detect differentiation for at least one other app. This helps to filter out many false positives. As a result, the number of tests in this table is substantially lower than the total number of tests Wehe users ran. The researchers sorted the Cellular ISPs based on the number of tests from users of each ISP. If they did not detect differentiation, researchers used the entry “Not detected.” The researchers claim that offers enough evidence that throttling is not happening. In some cases researchers do not have enough tests to confirm whether there is throttling, indicated by “No data.” 

The table has two column groups for the results: before the new FCC rules took effect on June 11th, and after. If behavior changed from after June 11th, it is highlighted in bold. 

Sprint’s Skype Throttle

The researchers found that video was not the only service impacted by speed throttles. Sprint (and its subsidiary, prepaid provider Boost), for example, is actively throttling Skype.

“This is interesting because Skype’s telephony service directly competes with the telephony service provided by Sprint,” the researchers wrote. But curiously, the throttle almost entirely impacts Android phone users, while iOS devices have less than a 4% chance of being speed throttled. But isolating the exact trigger for throttling remains elusive, the researchers claim.

“While we have strong evidence of Skype throttling from our users’ tests, we could not reproduce this throttling with a data plan that we purchased from Sprint earlier this year,” the researchers admit. “This is likely because it affects only certain subscription plans, but not the one that we purchased.”

When asked to comment, Sprint said: “Sprint does not single out Skype or any individual content provider in this way.” The test results indicate otherwise, suggest the researchers.

T-Mobile’s “Boosting” Throttle Can Mess Up Streaming Video

Some providers, like T-Mobile, attempt to sell their throttled speeds as pro-consumer. In return for reduced definition video, customers are free to watch more online content over their portable devices without it counting against a data cap. But T-Mobile’s video throttle is unique among providers as it initially allows a short burst of regular speed to buffer the first few seconds of a streamed video before quickly throttling video playback speed. Many video players do not expect to see initial robust speeds quickly and severely throttled. Consumers report video playback is often interrupted, sometimes several times, as the player gradually adapts to the low-speed, throttled connection. Consumers receive lower quality video as a consequence.

T-Mobile Plays Favorites

Through extensive testing, research found throttling begins after a certain number of bytes have been transferred, and it is not based strictly on time; below is a list of the detected byte limits for the “boosted” (i.e., unthrottled video streaming) period.

The impact of T-Mobile’s “boosting” speed throttle. Initial speeds of streaming video reach 25 Mbps before being throttled to a consistent 1.5 Mbps.

More concerning to the researchers is their finding that video apps are treated differently by T-Mobile.

“T-Mobile throttles YouTube without giving it a boosting period, while T-Mobile does not throttle Vimeo at all,” the researchers report. “Such behavior highlights the risks of content-based filtering: there is fundamentally no way to treat all video services the same (because not all video services can be identified), and any additional content-specific policies — such as boosting — can lead to unfair advantages for some providers, and poor network performance for others.”

The team of researchers had just one conclusion after reviewing the available data.

“Net neutrality violations are rampant, and have been since we launched Wehe,” the researchers report. “Further, the implementation of such throttling practices creates an unlevel playing field for video streaming providers while also imposing engineering challenges related to efficiently handling a variety of throttling rates and other behavior like boosting. Last, we find that video streaming is not the only type of application affected, as there is evidence of Skype throttling in our data. Taken together, our findings indicate that the openness and fairness properties that led to the Internet’s success are at risk in the U.S.”

The team “strongly encourages” policymakers to rely on fact-based data to make informed decisions about internet regulations, implying that provider-supplied data about net neutrality policies may not reveal the full impact of speed throttles and other traffic favoritism that is common where net neutrality protections do not exist.

Altice USA’s Optimum (formerly Cablevision) and Suddenlink are getting upgraded technology as the two cable companies face increasing demands for speed and broadband usage around the country.

“Over the last two years, the percentage of customers taking over 100 megabits of speed has risen to about 80% of our total customer base,” noted Dexter Goei, CEO of Altice USA. “Recently, we have shifted focus to growing the penetration of 200 Mbps services with about 80% of gross additions now taking these speeds or higher, reaching about half of our total customer base at the end of the third quarter, up from less than 5% two years ago.”

Goei noted that the average of all Optimum and Suddenlink broadband customers’ internet speeds has risen from 56 Mbps to 172 Mbps over the last 24 months, and this is increasing every quarter.

“Average data usage is now over 240 gigabytes per month per customer,” Goei added. “And this continues to grow over 20% per year.”

Goei

To meet growing demand, Altice USA is spending money upgrading its cable properties. The company is scrapping its coaxial cable network in the northeast and in selected parts of Suddenlink territory. In smaller communities that Suddenlink typically serves, the company will either bring fiber to the home service or upgrade the existing cable system to DOCSIS 3.1.

“The first objective is to have 1 Gbps broadband services available virtually everywhere,” Goei said. “For our legacy coax network in the Optimum footprint, we just need to do a Digital Switched Video upgrade now to move us to DOCSIS 3.1 and 1 Gbps speeds, which we can complete over the next few quarters. We just soft launched our fiber network in select areas of Long Island, and it is performing just as we expected so far, delivering a great 1 Gbps symmetrical single-play data service with the new advanced wireless gateway. The smart meshed Wi-Fi we’ve introduced is also doing extremely well.”

Goei says Optimum’s fiber network will be capable of delivering more than 10 Gbps speeds, as well as enhanced Wi-Fi, and improved system reliability.

“For the Suddenlink footprint, we already offer up to 1 Gbps services, so we will add further 1 Gbps capacity through some node splitting and CMTS upgrades,” Goei said. “We are also doing a QAM to IP migration on the cable plant to deliver future IP services. And with the move to DOCSIS 3.1, customers will have a uniform SSID across all of their devices, for an improved seamless Wi-Fi experience.”

The upgrades will mean Suddenlink customers will be more likely to receive 1 Gbps speeds even during peak usage times.

By transitioning video services away from the current QAM platform, IP video will free up additional bandwidth Suddenlink can devote to its internet customers.

Goei told investors on a quarterly results conference call that the five-year fiber upgrade project in the northeast may stretch into a sixth year due to permitting delays in some communities where Optimum provides service.

Some Wall Street analysts questioned Goei about the merits of a costly fiber upgrade, asking if it was necessary. Jonathan Chaplin of New Street Research suggested if cable systems were already capable of gigabit speed service under DOCSIS 3.1, any revenue benefits gained from offering gigabit service could already be realized without stringing fiber optic cable. Other Wall Street analysts wanted to know when Altice would deliver the next revenue-increasing rate hike on Optimum and Suddenlink customers.

The company acknowledged it lost customers after the last round of price increases last spring. Its biggest losses are coming from cord cutting. Altice saw 20,700 Optimum TV customers cancel service between July and September, with a total of 76,000 customers dropping service so far this year. But that won’t stop Altice from raising rates again. Goei anticipated the next rate hike will likely take place during the first half of 2019.

Altice USA is also working on its own cellphone service, which will be powered by its large Wi-Fi hotspot network in the northeast and rely on the services of Sprint to connect customers while away from Wi-Fi. The company did not release pricing or service information.

Comcast has passed 30 million customer relationships, mostly from adding new broadband customers that continue to disconnect from phone company DSL service.

In the last quarter, Comcast added 363,000 new broadband customers, a number the company calls its best third quarter subscriber add in 10 years, growing revenue by almost 10%.

High-speed residential and business internet service are among Comcast’s highest-margin businesses. Combining fast growth with sky-high profitability, Comcast boasted its broadband revenue is now the largest contributor to the cable company’s continued overall growth, reaching $4.3 billion this quarter, an increase of 9.6%.

“We have added over 1.2 million net new residential broadband customers in the last 12 months, including 334,000 net additions in the third quarter,” said Michael J. Cavanagh, Comcast’s chief financial officer. “Our offering is resonating with customers, as our consistent innovation and investment in our network has enabled us to stay ahead of customer expectations for not just high speeds, but also wall-to-wall Wi-Fi coverage and the ability to manage the increasing number of devices attached to their home networks.”

Comcast CEO Brian Roberts praised Comcast’s achievement of rolling out gigabit download speed to more customers than any other telecommunications company in the country.

“Our 1 gigabit internet is now available to nearly all of the 58 million homes and businesses passed in our footprint,” Roberts said. “This is the fastest deployment of gigabit speeds to the most locations in the country by anybody.”

Roberts claims Comcast will continue to build many of its future products and services around its broadband platform.

“We are investing to harness the capacity and capabilities of our network and deliver innovative differentiated experiences, which we believe gives us a long runway for further growth,” Roberts told investors on a morning conference call. “We are competing really well in residential broadband by offering customers the fastest speeds, most reliable Wi-Fi coverage in the home, and industry-leading Wi-Fi management and controls. We’ve branded our holistic broadband product as xFi, and continue to add new features, and we’re rolling out our xFi gateways and pods to further enhance the service.”

Comcast’s growing reliance on broadband products comes at the same time it faces additional cable television cord-cutting activity.

Cavanagh blamed online video streaming competitors like Sling TV and DirecTV Now for poaching its “low value” subscribers, admitting Comcast lost at least 95,000 net residential video customers in the last three months.

AT&T will complete its fiber buildout to areas designated to get fiber to the home service by mid-2019, according to AT&T executives.

John J. Stephens, AT&T’s chief financial officer, told investors on a quarterly conference call that AT&T is on schedule to complete expansion of its fiber to the home commitment to 12.5 million new customer locations, a regulator-required commitment imposed on AT&T in return for approval of its acquisition of DirecTV.

“We are getting near the end of our fiber build project, which is basically laying the foundation for stabilizing our broadband and TV business profits in 2019,” added AT&T CEO Randall Stephenson.

AT&T’s expansion has targeted millions of customer locations for fiber to the home service, replacing the fiber to the neighborhood technology AT&T used for several years to support its U-verse service. AT&T officials say its fiber network will reach more than one million new customers during 2018. That network is key to two AT&T initiatives – its emerging 5G wireless service, which requires fiber connections to cell towers, and AT&T Fiber and its broadband offerings — helping boost internet and online video revenue.

“This shift to fiber is beginning to drive IP broadband ARPU growth,” said John M. Donovan, CEO of AT&T Communications, Inc. “The strategic pivot we’re making with video, combined with our execution with fiber gives us the confidence that we will stabilize Entertainment Group [profitability] next year.”

AT&T Fiber is critical to the company’s ability to compete in the home broadband market against cable operators that have recently boosted internet speeds. AT&T’s hybrid fiber-copper U-verse system proved inadequate to match the significantly faster internet speeds many cable operators are rolling out. But AT&T Fiber will not reach all the company’s landline customers. Rural areas are unlikely to ever receive fiber upgrades and AT&T has had long-term plans to scrap its rural landline network, transitioning those customers to wireless voice and internet using AT&T’s 4G LTE network.

Cisco is helping cable operators get ready to finally end the wide speed disparity between upload and download speeds offered by most cable operators.

As cable operators continue to upgrade their cable systems to support DOCSIS 3.1 technology that makes it much easier to offer gigabit broadband speeds, Cisco is introducing the industry’s first “Full Duplex-Ready” GS7000 FDXi neighborhood node. It is an intelligent, remotely programmable piece of equipment that divides up broadband service to a number of households in a neighborhood. But unlike previous models, this one can offer customers the same upload and download speeds. Since the earliest days of cable modem technology, most bandwidth has been reserved for downloading, giving customers only a fraction of available speed for uploading content.

Cisco promises cable operators can provision its newest offering to deliver Full Duplex service in as little as two minutes. The equipment is expected to undergo field trials as early as this fall with sales widely expected to begin in early 2019.

Comcast reports it is already testing its own new network configuration combining Distributed Access Architecture with Full Duplex.

With remote surveillance cameras, video teleconferencing and virtual reality applications beginning to use significant amounts of upload bandwidth, cable operators expect an upswing in upstream traffic on their networks.

Comcast’s Robert Howald told attendees at a pre-SCTE Cable-Tec Expo event that the cable operator “wants to go symmetrical,” which means offering customers the same upload and download speeds. To manage this, Comcast needs to eliminate a large percentage of copper coaxial cable from its network and replace it with fiber, something the company has gradually been doing over the past few years. Comcast may be positioned to bring Full Duplex online earlier than many other cable operators because of its ongoing effort to push fiber optics closer to its customers.

Other cable operators, particularly smaller ones, may have a long way to go to be Full Duplex ready at high internet speeds. Some, like Altice’s Cablevision, have chosen to scrap traditional hybrid fiber-coax technology entirely, going all-fiber straight to the home. Other operators are hoping customers are not quite ready to demand identical upload and download speeds, and believe faster download speeds will satisfy customers for at least the next 5-10 years. If they are wrong, competitors offering fiber service could steal a lot of their business sooner than they think.