The Prime Minister spoke to his counterpart yesterday afternoon after first telling MPs 24 hours earlier that he would speak to him "shortly".
Israeli media had reported that Mr Netanyahu was refusing to take calls from world leaders seeking to influence the response to Saturday night's barrage.
After the call, a Downing Street spokesperson said Mr Sunak "reiterated the UK's steadfast support for Israel's security and for wider regional stability".
They added: "Prime Minister Netanyahu thanked the UK for its rapid and robust support in the face of Iran's reckless and dangerous attack on Saturday.
'PM was deeply disappointed Hamas blocked a deal'
"The Prime Minister said Iran had badly miscalculated and was increasingly isolated on the global stage, with the G7 co-ordinating a diplomatic response. He stressed that significant escalation was in no one's interest and would only deepen insecurity in the Middle East. This was a moment for calm heads to prevail."
Mr Sunak also told the Israeli prime minister "he remained gravely concerned about the deepening humanitarian crisis" in Gaza.
His spokesperson added: "The UK wanted to see a massive step change in aid access to flood Gaza with vital supplies, including Israel opening up new aid routes as quickly as possible.
"The Prime Minister said it was deeply disappointing Hamas blocked a deal at the weekend that would have saved Palestinian lives and secured the safe release of hostages."
Denne historien er fra April 17, 2024-utgaven av Daily Express.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent ? Logg på
Denne historien er fra April 17, 2024-utgaven av Daily Express.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
Slo torture as Brits waste a golden chance to end hoodoo
BOULTER RUNS OUT OF GAS AND TEAM LOSE THEIR WAY
BY EDDIE DID ME A FAVOUR HAVING A GO
Ollie changed after Jones attacked his 'bad attitude'
HILL DOESN'T TOP BILL
NICKY HENDERSON insisted there is \"nothing wrong' with Constitution Hill after his stable superstar was deposed as Champion Hurdle favourite yesterday.
THE ALTERNATIVE UNDERTAKER
From clifftop ceremonies to campervan-driven vigils and funeral pyres, Rupert Callender s revolutionising the 'bad theatre' that characterises the business of death in modern Britain
Cock-a-doodle-don't!
Residents have sleep shattered by bird's noisy 3am squawking
Mission to revive boxer pupfish after zoo finds it has the only one left
A ZOO is spearheading a conservation effort to save a rare fish species from extinction - after discovering it had the last remaining boxer pupfish.
'I'll never forget the horror in my dying husband's eyes'
A WIDOW who watched her husband choke to death due to cancer says she will never forget the look of horror in his eyes.
Gisele blasts the 'cowards' accused.of her many rapes
A FRENCHWOMAN who was sexually violated by scores of men after her husband drugged her called them all \"cowards\" yesterday as she gave evidence for the last time.
5,000 calories per day and no nature documentaries
Rev Richard Coles on lax pre-jungle routine
A criminal abuse of 'Stasi' police powers Pictures: GETTY
THE SINGLE most appalling aspect of the Allison Pearson story is that she was not told of what exactly she was accused.
