Did you get the number from GV, or port into GV from a standard carrier? If the former, then you're the first one I've come across who's able to do so. Faceboo

Did you get the number from GV, or port into GV from a standard carrier? If the former, then you're the first one I've come across who's able to do so. Facebook/Google/Twitter/Microsoft etc. all block VOIP numbers. The providers you use probably aren't hit with enough malicious activity for them to care about it.