Xandr
advertising and analytics subsidiary of Microsoft
Xandr, Inc. (pronounced "Zander") was the advertising and analytics subsidiary of Microsoft, which operates an online platform, Community, for buying and selling consumer-centric digital advertising.
In December 2021, AT&T sold Xandr (including AppNexus and Clypd) to Microsoft for an undisclosed price. The acquisition was completed in June 2022.
In 2023, Microsoft retired the Xandr name and consolidated the business under its Microsoft Advertising brand.
In 2025, Microsoft announced that it would shut down its buy-side Invest product in early 2026.
History
Following its June 2018 acquisition of AppNexus, Xandr was formed by AT&T to construct a national TV advertising marketplace.
Xandr was launched on September 25, 2018, at its inaugural AT&T Relevance Conference, in Santa Barbara, California. The name "Xandr" was chosen in honor of its parent company's founder, Alexander Graham Bell.
In June 2019, Xandr rebranded its AppNexus DSP, launching Xandr Invest, to serve as its central ad-buying hub.
“Xandr” enters the record as advertising and analytics subsidiary of Microsoft. Crown Archives preserves that source wording while asking what Xandr, advertising and analytics can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jul 25, 2026. The linked authority identifier is Q65091129. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2021, 2022, 2023 and 2025.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Xandr” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.