There is a number to call taxi?

[Luann P]

Can I call the taxi to take me?

[Hopper✘]

No i think, just Hold E or F when you see a Taxi

[開陽丸 KaiyouMaru]

Roman can get his taxis for you if you hang out with him enough

[Teamsnack]

Just call for Roman for a cab. His employee will do exactly the same as the yellow cabs as soon as he reached you. (no worries, you don't have to wait untill he drove all the way from the depot) But, in order to do this, your friendship with Roman shouldn't be bad.


========================
! ! ! ! SPOILER AHEAD ! ! ! !
SEEKING ABOUT WHAT HAPPENS TO ROMAN'S COMPANY
========================
When you've already had the part where roman's company got burned down, you will have to pull over a cab, just by holding E when you see one. Or just steal a car, like everyone does.