New York, NY – April 1, 2024 – In a challenge brought by AT&T Services, Inc., BBB National Programs’ National Advertising Division determined that Cox Communications Inc. provided a reasonable basis for the claim that Cox Mobile provides “Unbeatable 5G Reliability” as well as other express claims about its host network and implied claims about third-party testing of Cox Mobile.

The challenged “Unbeatable 5G Reliability” claims appeared in a 30-second television commercial and on the Cox Mobile website with a disclosure noting that “Cox Mobile runs on the network with unbeatable 5G reliability as measured by Ookla, LLC in the U.S., 1H 2023.”

In support of its “Unbeatable 5G Reliability” claims, Cox relied on RootMetrics’ Nationwide 5G testing, which assessed the performance of the three major carriers, AT&T, T-Mobile, and Verizon. Cox further relied on the additional testing conducted by RootMetrics in October 2023, which tested devices used by Cox Mobile customers. Cox also provided head-to-head 5G reliability testing of the MVNO, Cox Mobile, and its host network, Verizon.

After reviewing the evidence, the National Advertising Division (NAD) determined that Cox Mobile established a reasonable basis to support the claims:

  • “Cox Mobile runs on the network with unbeatable 5G reliability”
  • “We run on the network with unbeatable 5G reliability”
  • “Cox Mobile runs on the network with unbeatable 5G reliability as measured by Ookla, LLC in the U.S.”


NAD further determined that the implied claim that Ookla, LLC has conducted testing of 5G reliability for Cox Mobile customers was supported.

In its advertiser statement, Cox stated that it “appreciates NAD’s recognition that its unbeatable 5G reliability claim is fully supported.”

All BBB National Programs case decision summaries can be found in the case decision library. For the full text of NAD, NARB, and CARU decisions, subscribe to the online archive. This press release shall not be used for advertising or promotional purposes.


About BBB National Programs: BBB National Programs, a non-profit organization, is the home of U.S. independent industry self-regulation, currently operating more than a dozen globally recognized programs that have been helping enhance consumer trust in business for more than 50 years. These programs provide third-party accountability and dispute resolution services that address existing and emerging industry issues, create a fairer playing field for businesses, and a better experience for consumers. BBB National Programs continues to evolve its work and grow its impact by providing business guidance and fostering best practices in arenas such as advertising, child-and-teen-directed marketing, data privacy, dispute resolution, automobile warranty, technology, and emerging areas. To learn more, visit

About the National Advertising Division: The National Advertising Division of BBB National Programs provides independent self-regulation and dispute resolution services,  guiding the truthfulness of advertising across the U.S. The National Advertising Division reviews national advertising in all media and its decisions set consistent standards for advertising truth and accuracy, delivering meaningful protection to consumers and leveling the playing field for business.

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Contact Information:

Name: Jennie Rosenberg Email: [email protected] Job Title: Media Relations

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