Working online phone verification services in 2017?

Hi! Don't wanna be one of those guys who ask "XXX still working in 2017" but heck, there's no better way to put it. So are there any reliable (paid or free) phone verification services that work for major social networks (FB, IG, etc) and can be purchased and used online?
I've searched the forums a bit without any luck for "phone verification" keyword – no online websites posted, just members offering their private services.

And before you say textplus – it's not working anymore on FB or…

Working online phone verification services in 2017?