T-Mobile US on November 2 named Highdive its lead creative advertising agency and appointed Anomaly as its strategic brand transformation partner, while saying it will add AI-powered production tools to T-Studios, its in-house creative unit. The Bellevue, Washington, carrier presented the three moves as a single "creative ecosystem" meant to carry the brand into industries beyond wireless. The announcement contains no fees, contract terms, start dates or staffing figures, and it does not mention Dentsu Creative, which T-Mobile named its lead creative agency in January 2024, according to dentsu.

In Short

T-Mobile, one of the biggest phone companies in the United States, hired two outside agencies: Anomaly to work out what the brand should stand for as the company moves into businesses other than mobile service, and Highdive to make its ads. It is also giving its own in-house studio AI tools to produce ads and other content faster, including material meant to help AI chatbots and assistants describe its products correctly. The result is a big advertiser splitting brand strategy, ad ideas and production between three different teams, with the production part moving further in-house and onto software.

Three appointments, one announcement

T-Mobile published the announcement through Business Wire at 4:21 p.m. Eastern time on November 2, 2026, and posted the same text on its investor relations site. It divides the work into three parts. Anomaly will "help shape the brand's next chapter as T-Mobile explores opportunities in new industries." Highdive will lead "enterprise-wide creative strategy and full-funnel advertising development." And T-Studios "will integrate AI-powered capabilities to accelerate and scale creative production."

The company describes the investments as building on years of creative and marketing work "with partners that have helped make T-Mobile one of America's most distinctive brands." It gives a reason for the timing in one clause: "the company's ambitions expand beyond wireless."

The only T-Mobile executive quoted is Lucy McLellan, executive vice president and chief brand and communications officer. "T-Mobile has built one of the most distinctive brands in America by challenging conventions, embracing bold ideas and rewriting the rules of wireless," she said. She went on to describe what she called "an extraordinary new era for brand building," adding: "By combining world-class strategic and creative talent with the power of AI, we're raising the bar for what's possible - creating bigger ideas, greater cultural impact and new opportunities to extend the power of the T-Mobile brand."

McLellan has been at T-Mobile for a little more than a year. Adweek reported on June 30, 2025, that she was leaving Stellantis, where she was senior vice president and head of marketing for North America, to join T-Mobile in mid-July as chief brand and communications officer, with responsibility for the brand, creative, public relations, corporate communications, responsibility and events teams.

Anomaly: a brand for a company leaving its category

Anomaly's brief is the broadest of the three and the least specific. According to T-Mobile, the agency "is tasked with defining the enterprise-wide brand strategy that creates the right to win today and tomorrow." It will "help translate the company's bold business and AI ambitions into a distinctive advantage for the brand," and the partnership will focus on "extending the power of the T-Mobile brand to support its next era of growth."

Khara Wagner, partner and chief executive of Anomaly Los Angeles, described the assignment in sharper terms than the company did. "T-Mobile has never been afraid to change the conversation. Going beyond wireless demands that same instinct," she said. "Our job is to shape the strategy that carries the brand into its next era, transforming what it stands for so it can stretch into places it's never been, and that's the kind of challenge Anomaly was built for."

Transforming what a brand stands for is a large undertaking for a company whose identity has been built on its "Un-carrier" positioning in wireless. Which places the brand is meant to stretch into, the announcement does not say. The only descriptions given are "new industries" and "emerging industries."

Some of the businesses T-Mobile already runs outside mobile service give a sense of the range. A separate T-Mobile release said its fiber internet unit would offer a 5 Gig plan from November 3 at $90 a month with AutoPay, plus taxes and fees, backed by a 10-year price guarantee. T-Mobile is also an advertising company. It agreed to buy digital out-of-home platform Vistar Media for about $600 million and bought Blis in early 2025, when it said its advertising solutions business generated more than $1 billion in annual revenue. On October 5, 2026, Vistar announced audience segments built on T-Mobile network signals, sold only through Vistar's own buying platform. None of these businesses is mentioned in the creative announcement.

Highdive takes the advertising

Highdive's role is the most concrete. As lead creative advertising agency, it "will be responsible for integrated, full-funnel creative campaigns - from brand-building ideas to product and service storytelling and conversion-driving creative," according to T-Mobile. The company says the partnership is designed to deliver work "that builds brand equity, connects with customers across the entire journey and drives measurable business impact." Which measures will define that impact is not specified.

Megan Lally, co-owner and chief executive of Highdive, cast the match as one of temperament. "The partnership works because the fit is real: two companies that constantly challenge the status quo," she said. "T-Mobile refuses to play by the old rules of wireless, and Highdive refuses to play by the old rules of advertising. Together with T-Mobile, we will break through the category noise with big ideas that move masses."

The word "enterprise-wide" appears in both agency briefs and is not defined. T-Mobile's company description lists three flagship brands - T-Mobile, Metro by T-Mobile and Mint Mobile - and the announcement does not say whether Highdive's remit extends to the second and third, or to T-Mobile's business customer division. Media planning and buying are not addressed at all.

The roster T-Mobile built in 2024

The announcement is also silent on the agency that, on the public record, last held the lead creative title. On January 5, 2024, dentsu said T-Mobile had named Dentsu Creative its lead creative agency after a competitive review, with the account to be led creatively by Rafael Rizuto, Dentsu Creative's chief creative officer for the US and Hispanic Latin America. Mike Katz, described in that announcement as T-Mobile's president of marketing, strategy and products, was quoted alongside it.

Campaign reported at the time that Dentsu Creative took over the account from Publicis Groupe's Saatchi & Saatchi and, citing Adweek, that the assignment covered creative and brand strategy with a focus on sponsorship, digital, audio and the Hispanic market. According to the same report, WPP's VML kept T-Mobile's customer relationship management work, and Panay Films' national television and Super Bowl work was not part of that review.

Do any of those arrangements survive? The November 2 announcement does not say, nor does it say whether a review was held this time, when Highdive's work begins, or what happens to Dentsu Creative, VML or Panay Films. Nor does it say whether Anomaly and Highdive will work through T-Mobile's in-house studio or alongside it.

AI inside T-Studios

The third element bears most directly on how much work goes to outside agencies. T-Mobile says it is "investing in the next generation of creative production through its in-house T-Studios, integrating AI-powered tools and capabilities to accelerate content development, streamline workflows and expand creative possibilities."

The stated aims are speed, flexibility and volume. By combining its creative teams with emerging technology, according to T-Mobile, the company wants "to bring ideas to life faster, adapt content more dynamically and produce high-quality creative at greater scale - giving its teams more freedom to focus on strategic thinking, innovation and storytelling."

There are no specifics. The announcement names no AI vendors, models or tools; gives no budget for the investment; and offers no figures for T-Studios' current staff, output or history. It does not say whether AI-generated material will be disclosed to audiences as such, a question that has drawn attention after Resemble AI found that only 2 of 3,379 Facebook and Instagram ad files its detector flagged as AI-generated mentioned AI in their copy.

The move fits a pattern PPC Land has followed for more than a year. In May 2025, Mark Zuckerberg described a future in which advertisers would supply neither creative nor targeting, with Meta producing the ads itself. By June 2026, Meta said more than 8 million advertisers were using its generative AI creative tools. An IAB report in July 2025 found that 86% of buyers were using or planning to use generative AI for video creative and that buyers expected AI-built creative to account for 40% of all ads by 2026.

Cost is the other argument. Martin Sorrell said in March 2026 that many clients spend 15% to 20% of their media budgets on creative against a target of about 10%, and that finance chiefs rather than marketing chiefs would force AI adoption in agencies. He cited Netflix campaigns where a theoretical 1 million to 1.5 million creative variations had been narrowed to 50,000 to 70,000 deployed items. Vendors make similar claims about speed. AI Digital, for one, says its studio turns an eight-to-twelve-week creative process into a first cut in about a week.

T-Mobile frames the technology as freeing its teams for strategic work, and the announcement contains no headcount figures. T-Mobile's quarterly report, filed on October 28, showed employee expenses down 10.5% year over year to $1,978 million after a workforce transformation that cut organizational layers, though that filing does not connect the reduction to creative production.

Writing for assistants as well as people

One paragraph in the announcement deals with a problem that has nothing to do with television commercials. "As customers turn to AI-powered search, assistants and emerging platforms to discover information, T-Mobile is building the ability to develop and adapt relevant, authoritative content more continuously, helping its brand, products and services show up accurately across traditional, digital and emerging channels," the company said.

That is a description of what marketers call generative engine optimization: shaping the material that large language models draw on so that their answers name a brand and describe its products correctly. T-Mobile places the work with its in-house studio rather than with either outside agency, and presents it as part of a creative announcement rather than a search or communications plan.

T-Mobile executives have talked about AI-driven discovery before. On the company's third-quarter earnings call on October 28, chief operating officer Jonathan Freier said T-Mobile had seen nothing of significance from AI shopping agents such as Meta's Muse, while the company watched them closely. He compared agent-driven shopping to AI search, which he said T-Mobile welcomes because customers comparing plans would, in his view, be steered toward its prices. Five days later, the company announced a content operation aimed at the same channel.

Influencing what an assistant says is less direct than buying an ad. Microsoft's guide for marketers, published in February 2026, set out three stages through which AI search systems decide which brands to recommend, from baseline understanding to precision signals. Evertune, which tracks AI visibility for brands, found that more than 40% of the content in the top 10,000 sources cited by AI systems contained affiliate links or was sponsored. A vendor survey of 858 respondents in March 2026 found that 44.8% of brands had increased PR spending because of AI-driven search.

T-Mobile's statement does not say which assistants or platforms it has in mind, how it will measure whether its brand and products "show up accurately," or whether paid placements inside AI answers form part of the plan.

Why the split matters

The structure T-Mobile describes separates three jobs that full-service agencies have long sold as a bundle: deciding what the brand stands for, coming up with campaign ideas, and producing the finished material. Strategy goes to Anomaly, ideas to Highdive, and production - the stage most exposed to automation - to an in-house unit equipped with AI tools.

The large agency groups are redrawing the same lines from the other side. WPP's third-quarter update on October 30 showed its creative division down 5.1% while its production division grew 2.5%, and chief financial officer Joanne Wilson put the cost of gross client losses at about 600 basis points of growth this year. WPP's answer has been to sell AI-enabled production at scale, including from a new facility in East London. T-Mobile is taking at least part of that work in the opposite direction, into its own studio. Dentsu, whose creative unit won T-Mobile in 2024, abandoned the sale of its international business in February 2026 after a net loss of $2.18 billion and planned 1,300 further job cuts. For the large holding companies, whose pitch has long rested on handling strategy, creative and production under one roof, the T-Mobile structure is the unbundled alternative.

The budget behind the brand is substantial. T-Mobile recorded $956 million of advertising expense in the third quarter of 2026, up 5.5% from a year earlier, and $2,783 million over the first nine months. iSpot ranked it sixth among US television advertisers in the third quarter, with an estimated $99.0 million across linear and streaming TV, 37.5% of it on streaming. The announcement says nothing about whether that spending will rise, fall or shift between channels.

For publishers and platforms that carry T-Mobile's advertising, the announcement points to more versions and more frequent changes of creative rather than to any change in budget, if the company follows through on content that adapts "more dynamically" and is produced "more continuously." How quickly that happens, and whether outside agencies keep a share of production, depends on details T-Mobile has not published.

Timeline

Summary

Who: T-Mobile US and its executive vice president and chief brand and communications officer Lucy McLellan; Anomaly, represented by Khara Wagner, partner and chief executive of Anomaly Los Angeles; Highdive, represented by co-owner and chief executive Megan Lally; and T-Studios, T-Mobile's in-house creative unit. The change also concerns Dentsu Creative, named T-Mobile's lead creative agency in January 2024, which the announcement does not mention.

What: T-Mobile appointed Anomaly as strategic brand transformation partner to define an enterprise-wide brand strategy for growth beyond wireless, named Highdive lead creative advertising agency with responsibility for full-funnel campaigns, and said it is adding AI-powered tools to T-Studios to produce content faster and at greater scale, including content designed to appear accurately in AI search and assistants. No fees, start dates, contract terms, staffing figures or AI vendors were disclosed.

When: The announcement was published on November 2, 2026, at 4:21 p.m. Eastern time, five days after T-Mobile reported third-quarter results.

Where: T-Mobile is headquartered in Bellevue, Washington, and the announcement concerns its US brand and advertising. Anomaly's Los Angeles office is the one named.

Why: T-Mobile says its ambitions now extend beyond wireless and that combining strategic thinking, creative work and AI-powered technology will support new growth. For the advertising industry, the announcement shows one of the largest US advertisers, with $956 million of advertising expense in the third quarter, splitting brand strategy, campaign ideas and production between separate partners and an in-house studio, and treating AI assistants as a channel its content must reach.