Source: Commons divisions
UK Parliament · Commons Division 366 · 19 March 2019
199 Aye / 134 No · majority 65 · 4 tellers (not counted) · 2 both
Totals are Parliament’s official count, which does not include the tellers. Parliament’s published list names 197 of the 199 Aye voters and 132 of the 134 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.