9 February 2026

This notice relates to the disclosure of information that qualified or may have qualified as inside information within the meaning of Article 7(1) of the Market Abuse Regulation (EU) 596/2014 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018, as amended (the "UK Market Abuse Regulation").

NOTICE OF ISSUER CALL

British Telecommunications public limited company

(LEI: 549300OWFMSO9NYV4H90)

EUR 700,000,000 2.750 per cent. Notes due 30 August 2027 (the "Notes")

(ISIN: XS2496028502)

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 11 March 2026 (the "Optional Redemption Date"), in accordance with Condition 6.4 (Redemption at the option of the Issuer (Issuer Call)) of the terms and conditions of the Notes (the "Conditions"). The Notes will be redeemed on the Optional Redemption Date at the Make-Whole Amount calculated by Citibank, N.A., London Branch (the "Calculation Agent") as set out in the Final Terms document relating to the Notes and Condition 6.4 of the Conditions (the "Optional Redemption Amount").

The Calculation Agent has today, the Reference Date of 9 February 2026, determined in accordance with the Conditions that the Make-Whole Amount for the Aggregate Nominal Amount of the Notes is EUR 703,591,814.83. 

Payment of the Optional Redemption Amount, together with interest accrued from, and including, 30 August 2025 to, but excluding, the Optional Redemption Date, will be made on the Optional 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 Optional 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 Exchange's main market will be cancelled on, or around, 11 March 2026.

Terms used in this notice and not defined herein shall have the same meaning given to them in the Conditions. 

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 Call should be directed to the Issuer at:

British Telecommunications public limited company

1 Braham Street

London E1 8EE

For the attention of: Mitesh Kholia (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 within the meaning of Article 7(1) of the UK Market Abuse Regulation. For the purposes of the UK Market Abuse Regulation 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 Mitesh Kholia, Group Treasury Director of British Telecommunications public limited company.