Source: Commons divisions
UK Parliament · Commons Division 373 · 25 March 2019
329 Aye / 302 No · majority 27 · 4 tellers (not counted) · 1 both
Totals are Parliament’s official count, which does not include the tellers. Parliament’s published list names 328 of the 329 Aye voters and 301 of the 302 No voters; tellers are listed and marked but not counted.
Walking through both the Aye and No lobbies is a recorded form of deliberate abstention.