What travel agency has IATA number 31551870?
Hospitality Too LLC. The company is based in the USA.
IATA 10623900 belongs to Global Travel Int. which is a phanton agency that sells the use of it's #'s to people that pay them a membership fee. They are NOT a true agency which basically means that this is for the most part a scam. Part of their marketing is that the use of the #s can earn the users discounts on their own travel.