CARTA ZERO Launches "docomo data square Ads," Offering Integrated Data Analysis, Ad Delivery, and Performance Verification for Over 100 Million IDs

CARTA ZERO Inc. (Headquarters: Minato-ku, Tokyo; CEO: Manabu Takahashi) will begin sales in July 2026 of "docomo data square Ads (ドコモ データ スクエア アズ)," a new advertising delivery solution package based on the data clean room "docomo data square® (ドコモ データ スクエア)" provided by NTT DOCOMO, INC.

This service leverages NTT DOCOMO's data from its d POINT CLUB membership base, exceeding 100 million members (※1), to provide optimal ad delivery tailored to a company's objectives and KPIs, reaching from potential interest groups to highly qualified prospects. Through integration and reorganization with CARTA ZERO's advertising platform "PORTO" and other advertising infrastructure, it enables seamless, end-to-end execution from advanced data analysis integrating online and offline data, to efficient ad delivery and performance verification, further strengthening marketing support utilizing Single ID.

To commemorate the launch of this solution, the "docomo data square®" logo has also been refreshed by NTT DOCOMO.

※1 Number of d POINT CLUB members as of the end of March 2026.

※2 Does not include personally identifiable data.

Background and Objectives

Following CARTA HOLDINGS' integration into the NTT DOCOMO group, we are promoting enhanced value for "Single ID Marketing" (※3) by merging the assets of both companies.

Since its release, "docomo data square®" has served as a data analysis platform utilizing over 100 million d POINT CLUB members, driving analysis and marketing support with Single ID, and contributing to solving the marketing challenges of many companies.

However, corporate marketing challenges and user behavior have become increasingly complex year by year. Amidst the diversification of customer touchpoints and data, it has become difficult to grasp the reality of target audiences and verify the effectiveness of individual measures. Consequently, there is a growing need for an environment that integrates fragmented data and allows for consistent strategy planning, measure execution, and performance verification based on reliable analysis and verification.

Against this backdrop, CARTA ZERO and NTT DOCOMO have now combined their ad delivery infrastructure, data analysis infrastructure, ID solutions, and more, to launch "docomo data square Ads." This enables a more seamless and advanced integration from data analysis to ad delivery and performance verification, based on Single ID.

※3 A marketing methodology that supports everything from strategy and tactics planning to measure execution and performance verification, based on membership data at the ID level, including online and offline cross-sectional behavior and purchase data linked to each individual among the over 100 million d POINT CLUB members.

Composition and Features of "docomo data square Ads"

"docomo data square Ads" is a collective term for solutions that deliver optimized campaigns to customer segments identified through analysis using NTT DOCOMO's data.

Starting July 2026, we will begin selling two advertising menu options: "docomo data square Ads Platform" and "docomo data square Ads Connect."

1. docomo data square Ads Platform

CARTA ZERO's ad platform "PORTO," which CARTA ZERO develops and deploys, and NTT DOCOMO's (※4) programmatic ad delivery platform "docomo Ad Network" will be integrated and reorganized, and sold under the single brand "docomo data square Ads Platform."

This enables comprehensive reach across all consumer touchpoints, from NTT DOCOMO's rich media such as "Message S," "d POINT CLUB," and "d menu," to web and app media, connected TV, audio advertising, and DOOH (Digital Out-of-Home advertising).

In an era where traditional data marketing is becoming difficult due to restrictions on third-party cookies (3rd-Party Cookie), this platform fully utilizes NTT DOCOMO's data based on its reliable membership base and the ID solution "docomo connecting path" to enable highly accurate targeting delivery independent of cookies.

Furthermore, leveraging the strengths of our in-house developed products, we provide end-to-end support from target analysis to ad delivery, operational improvement, and on/off integrated performance measurement and analysis reports based on ad delivery logs, without data loss. As a next-generation ad platform embodying "Single ID Marketing," it supports the resolution of all marketing challenges, from corporate branding to performance.

※4 "docomo Ad Network" has been developed and sold by CARTA ZERO since July 1, 2026, through business succession by absorption-type company split from D2C Inc.

2. docomo data square Ads Connect

CARTA ZERO will also launch "docomo data square Ads Connect" as a new menu that enables ad delivery utilizing NTT DOCOMO's data on external major programmatic ad platforms and other services, not limited to its in-house developed ad platform.

This menu allows for seamless ad delivery by smoothly linking and utilizing NTT DOCOMO's data with diverse advertising media and programmatic ad platforms that account for the majority of market share, including Google, Meta, X (formerly Twitter), SmartNews, Yahoo! JAPAN, and LINE. This enables high-precision approaches based on NTT DOCOMO's data to be seamlessly deployed across all advertising touchpoints, such as major social media, portal sites, and video platforms that users use daily.

By safely and smoothly "connecting" NTT DOCOMO's reliable first-party data to external media, it not only functions as a highly accurate targeting list but also serves as seed data for delivery optimization on each platform.

Download Materials

Available for free download from the link below:

https://know-how-now.cartazero.co.jp/download/docomo-data-square-ads

CARTA ZERO will continue to support clients' marketing activities through the provision of high-value-added services.

About "NTT DOCOMO's Data"

User data (advertising identifiers, attribute information, location information, behavioral history, etc.) provided by NTT DOCOMO to CARTA ZERO Inc. with consent for third-party provision. With a membership base exceeding 100 million (d POINT CLUB members as of the end of March 2026), it holds not only attribute data (gender, age, etc.) but also actual behavioral data such as location information and purchase history unique to carriers, and handles industry-specific advertising products utilizing NTT DOCOMO's data. Please note that this NTT DOCOMO data does not include personally identifiable information.

About "docomo data square®"

"docomo data square®" is a service that analyzes targets by combining user data held by NTT DOCOMO with AI that can estimate user attributes, behavior, and interests, and visualizes statistical information. By utilizing NTT DOCOMO's accurate and diverse data, it enables data analysis that integrates online and offline. This strongly supports companies' marketing activities, including pre- and post-ad delivery planning, performance verification, and people flow analysis in specific areas using location information.

About "PORTO"

An ad platform for brand advertisers developed and operated by CARTA ZERO.

"PORTO" enables integrated delivery and analysis, regardless of online or offline. By having a wide range of media options without limitations, it proposes optimal solutions for advertisers' challenges. Furthermore, it aims to maximize effectiveness by analyzing delivery methods and combinations according to ad delivery KPIs and formulating cross-media strategies.

About "docomo Ad Network"

A programmatic ad delivery platform that enables cross-media delivery to multiple NTT DOCOMO-operated media such as "d menu," "d POINT CLUB," and "Message S," as well as some external media. It not only achieves large-scale reach to NTT DOCOMO's over 100 million users but also enables the delivery of targeted advertising utilizing NTT DOCOMO's unique data.

By utilizing attribute information such as gender, age, and residential area obtained with user consent, as well as service usage data, it creates segments suitable for the target audience, enabling more accurate ad delivery and supporting companies' marketing activities.

About "docomo connecting path"

docomo connecting path (commonly known as "Konepasu") is an ad-specific ID issuance solution that respects user privacy, enabling user identification by using IP addresses, etc., issued by NTT DOCOMO when customers use various sites and apps with their contracted NTT DOCOMO communication lines, with prior customer consent. This ID is zero-party data obtained with prior consent and allows for user identification even when using cookie-less browsers (such as Safari). "docomo Ad Network" supports audience information accumulation on advertiser sites, targeted ad delivery, and conversion measurement utilizing the functions of "Konepasu."

Company Name

CARTA ZERO Inc. (https://cartazero.co.jp/)

Location

Toranomon Hills Station Tower 36F, 2-6-1 Toranomon, Minato-ku, Tokyo

Representative

Manabu Takahashi, Representative Director, CEO Masashi Nishizono, Representative Director, COO

Established

April 1, 2011

Capital

60 million yen

Shareholder

CARTA HOLDINGS Inc. 100%

Business Activities

Digital Marketing Support Business