19 February 2024

NOTICE OF ISSUER MATURITY PAR CALL

British Telecommunications public limited company

(LEI: 549300OWFMSO9NYV4H90)

EUR 575,000,000 1.000 per cent Notes due 23 June 2024 (the "Notes")

(ISIN: XS1637334803)

issued under its Euro Medium Term Note Programme

NOTICE IS HEREBY GIVEN by British Telecommunications public limited company (the "Issuer") that the Notes will be fully redeemed by the Issuer on 25 March 2024 (the "Redemption Date"), in accordance with Condition 6.4 (Redemption at the option of the Issuer (Issuer Maturity Par Call)) of the Terms and Conditions of the Notes. The Notes will be redeemed on the Redemption Date at a price equal to their Final Redemption Amount as set out in the Final Terms document relating to the Notes, being EUR 1,000 per Calculation Amount of EUR 1,000, plus accrued but unpaid interest from, and including, 23 June 2023 to, but excluding, the Redemption Date (the "Redemption Price"). Payment of the Redemption Price will be made on the Redemption Date through Euroclear Bank SA/NV and Clearstream Banking S.A. Accordingly, any interest in respect of the Notes shall cease to accrue on and after the Redemption Date. The listing of the Notes on the Financial Conduct Authority's Official List and the admission of the Notes to trading on the London Stock Exchanges main market will be cancelled on, or around, 25 March 2024.

Further information

The Issuer has exercised its call option to redeem the Notes as part of its liquidity and balance sheet management. The redemption will be funded by existing cash resources.

Questions regarding this Notice of Issuer Maturity Par Call should be directed to the Issuer at:

British Telecommunications public limited company

1 Braham Street

London E1 8EE

For the attention of: Andrew Binnie (Group Treasury Director)

This announcement is released by British Telecommunications public limited company and contains information that qualified or may have qualified as inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) 596/2014 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018 ("UK MAR"). For the purposes of the UK MAR and Article 2 of Commission Implementing Regulation (EU) 2016/1055 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018, this announcement is made by Andrew Binnie, Group Treasury Director of British Telecommunications public limited company.