Buttler struck the last ball of the innings for four to take Eoin Morgan's men past Sri Lanka's 443 for nine against Netherlands in July 2006. It is also the third highest total in List A Cricket after 496 by Surrey against Gloucestershire at the Oval in 2007and 445 recently by Nottinghamshire against Northamptonshire at the same venue in 2016.
Alex Hales treated his home crowd to a masterclass at Trent Bridge, but his Test place is under threat after a poor series against Pakistan. He bettered Paul Collingwood's effort of 24 balls, against New Zealand in Napier in 2007-08.
Former players are upset after England posted the highest ever One-day worldwide total of 444 for three and romped home to a big win to seal the series.
Earlier, English batsmen Alex Hales and Jos Butler ran riot at a sun-kissed Trent Bridge on Tuesday taking England to 444 for three. Buttler also holds record for the top three fastest ODI hundreds from England.
Pakistan began brightly during its massive chase as Sharjeel Khan teed off from the get-go. Their batsmen have put up competitive totals and scored more than 250 in all three games, with nearly all of them among the runs.
Amir broke yet another record with an entertaining knock, hitting four sixes to make England wait for an inevitable series triumph before Woakes had him caught and bowled.
Jos Buttler hit England's fastest half-century.
Chris Woakes is bracing himself for the day when 500 could be scored in a 50-over match - and praying he is on the right side if it ever happens. He now has second worst bowling figures in ODIs.
All-rounder Ben Stokes is set to play his first worldwide T20 match since his traumatic experience in the World Cup final earlier this year after being named in the squad for next Wednesday's match against Pakistan.
"We're still learning with the bat and ball and still improving in the field so hopefully there's a lot more to come in the next two years", Hales said.
Hales' innings is the second highest by any batsman against Pakistan.
5 Number of consecutive 50s for Root in ODIs. Geoff Boycott, Graham Gooch, Alec Stewart, Jonathan Trott and Hales are the other five England players to do so.
On England's world record 444 total, Hales hopes there is more to come in the near future from England as they continue to push the boundaries. Their previous highest was 129, also against Pakistan at Dubai (DSC) in 2015. However, realising the need for change, the England selectors went with a limited-overs specialist team and with Eoin Morgan coming into his own as captain, the results picked up.
England lead the five-match campaign 3-0 with two matches to play.
They smashed 76 for the last wicket.