Raja Bell scored 27 points and nailed a huge 3-pointer down the stretch to hold off a fourth-quarter rally as Phoenix set a franchise record with their 16th consecutive victory, a 98-90 win over Milwaukee.
Surpassing their 15-game streak from November 20-December 19, the Suns have cemented themselves as one of the best teams in the NBA.
Their franchise-best string gives them 32 wins in their last 34 contests.
Up by 10 points with 4:43 left in Friday's game, Phoenix let Milwaukee back into the game.
The Bucks went on a 9-3 run to pull within 93-90 with 1:34 remaining and had the ball with a chance to tie.
But rookie Ersan Ilyasova's shot was blocked by Suns forward Shawn Marion as time expired on the 24-second clock.
Bell was 10-of-18 from the field, including 7-of-11 from long range, for the Suns, who shot just 43 percent (37-of-87) from the floor but were 11-of-28 from the arc.
Canada's Steve Nash collected 18 points and 16 assists and Marion added 11 and a season-high 23 rebounds.