SPIRENT COMMUNICATIONS TO SHOWCASE LATEST SOLUTIONS AT MOBILE WORLD CONGRESS, BARCELONA

London, UK - 27 February 2023: Spirent Communications plc ("Spirent" the "Company" or "Group") (LSE: SPT), the leading provider of automated test and assurance solutions for next-generation devices and networks, announces that it will be participating at this year's GSMA Mobile World Congress (MWC) taking place in Barcelona from 27 February to 2 March.

The Mobile World Congress is the world's largest and most influential event for the mobile technology and connectivity industry.

Spirent Chief Executive Officer, Eric Updyke, along with the Company's technical experts, will showcase the innovative test and assurance solutions that are enabling Spirent's customers to meet their ever more complex connectivity challenges.

Visitors will have the opportunity to experience product demonstrations that include the Group's new End-to-End O-RAN solution and its next-generation live network assurance solution, Spirent Vantage, which provides intelligent and automated active assurance across the lifecycle of the evolving 4G/5G hybrid network.

MWC 2023 coincides with Spirent's recently published fourth annual 5G Market Drivers, Insights, and Considerations report. The report finds that 5G network rollouts remain in their infancy, with less than 5% of service providers having deployed on a true 5G core network, highlighting the multi-year growth opportunity ahead.

Eric Updyke, Chief Executive Officer, commented: "MWC is the most important annual gathering for the industry. We are looking forward to meeting with customers, prospects and industry leaders to demonstrate our exciting suite of mission-critical assurance solutions that will help solve the complex connectivity challenges of today, tomorrow and beyond."

Spirent will be based in Executive Meeting Rooms 2.1C11Ex, 2.1C13Ex and 2.1C15Ex, located in Zone C of Hall 2.1 at the Fira de Barcelona Gran Via.

The Group's latest annual 5G Market Drivers, Insights, and Considerations report is available on Spirent's website.

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About Spirent Communications plc

Spirent Communications plc (LSE: SPT) is the leading global provider of automated test and assurance solutions for networks, cybersecurity and positioning. The Company provides innovative products, services and managed solutions that address the test, assurance and automation challenges of a new generation of technologies, including 5G, SD-WAN, Cloud, autonomous vehicles and beyond. From the lab to the real world, Spirent helps companies deliver on their promise to their customers of a new generation of connected devices and technologies. Further information about Spirent Communications plc can be found at https://corporate.spirent.com/.

Spirent Communications plc Ordinary Shares are traded on the London Stock Exchange (ticker: SPT; LEI: 213800HKCUNWP1916L38). The Company operates a Level 1 American Depositary Receipt (ADR) programme with each ADR representing four Spirent Communications plc Ordinary Shares. The ADRs trade in the US over-the-counter (OTC) market under the symbol SPMYY and the CUSIP number is 84856M209. Spirent ADRs are quoted on the Pink OTC Markets electronic quotation service which can be found at https://www.otcmarkets.com/marketplaces/otc-pink.

Spirent and the Spirent logo are trademarks or registered trademarks of Spirent Communications plc. All other trademarks or registered trademarks mentioned herein are held by their respective companies. All rights reserved.