Fried Frank Harris Shriver & Jacobson has secured a role advising longstanding client Virgin Media on a $1bn (£504m) notes offering.

The convertible senior notes offering, which closed on 16 April, will be used to prepay some outstanding debt in a senior secured credit facility.

The deal saw the US firm fielding a team led by London corporate partner Tim Peterson. He was assisted by fellow London corporate partners Bob Mollen and Rob McBride and City tax partner Keith Featherstone. New York tax partner Lisa Levy provided additional/US tax advice.

The deal is the latest in a stream of transactions on which the New York firm has advised UK entertainment and communications company Virgin Media. The firm initially forged its relationship with the company when it advised on the £5.5bn merger of NTL and Telewest in 2005.

Fried Frank is now the company's prime corporate adviser and last year a team led by New York corporate partner Arthur Fleischer and London corporate partners Robert Mollen and Jerry Walter advised on a prospective £11.5bn takeover bid by private equity giant Carlyle.

The notes, which bear interest at 6.5% a year, are due in 2016. Simpson Thacher & Bartlett advised the underwriting banks – Goldman Sachs, JP Morgan and Deutsche Bank.

The firm said: "The transaction was substantial in size and the proceeds are being used to refinance senior debt."