Crewe are High of Sky Bet League Two after a 4-2 win on Saturday in Carlisle.
Alexandra took an early lead thanks to goals by Daniel Powell and Nicky Hunt in the first half, but were pegged back by attacks against Hallam Hope along with Christie Elliot.
Crewe then struck back, though, and secured the win thanks to Chris Porter along with a Gethin Jones aim.
They lead following the Grecians conquer beyond leaders Forest Green 1-0 in St James Park, Exeter on goals performed. Since Rovers dropped to fourth, ryan Bowman got the only goal.
Bradford went up to third after a 2-1 win in Morecambe – after Stevenage made their first win of the season, beating Grimsby 2-1 to maneuver out of the relegation zone.
Swindon, meanwhile, stay seventh following a 1-1 draw. Joel Grant earned a point for Argyle although eoin Doyle place the Robins facing.
Nicky Maynard scored a hat-trick as Mansfield beat nine-man Oldham 6-1 at the 1 Call Stadium. Oldham had two players sent off as Tomas Egert within a moment at the first half and then Felipe Morais were dismissed.
While Leyton Orient came from behind to win 3-1, as they thumped Northampton 3-0 scunthorpe got a triumph of the year.
Elsewhere, Macclesfield and Crawley beat Port Vale 2-1 and Colchester, respectively and Cambridge 1-0 was seen off by Salford.