Crewe are High of Sky Bet League Two Following a 4-2 win in Carlisle.
Alexandra took an early lead thanks to goals from Daniel Powell and Nicky Hunt at the first half, but were pegged back by attacks against Hallam Hope along with Christie Elliot.
Crewe then struck and ensured the triumph thanks to a Gethin Jones very own aim and Chris Porter.
They direct Exeter on goals taken after the Grecians conquer leaders Forest Green 1-0 in St James Park. As Rovers fell to fourth ryan Bowman has got the only goal.
Bradford moved up to third after a 2-1 win in Morecambe – who fell to the bottom of the table after Stevenage earned their first win of this year.
Swindon, meanwhile, remain seventh following a 1-1 draw. Eoin Doyle place the Robins in front but a point was got by Joel Grant for Argyle.
Nicky Maynard scored a hat-trick at the One Call Stadium as Mansfield conquer nine-man Oldham 6-1. Oldham had two players sent off as Tomas Egert over a minute from the first half and Felipe Morais were dismissed.
Scunthorpe got a second triumph of the season since they thumped Northampton 3-0, while Leyton Orient came from behind to win 3-1.
Elsewhere, Macclesfield beat Port Vale 2-1, Crawley overcome at Colchester by exactly the same scoreline and Cambridge 1-0 was seen off by Salford.