AnonymSMS is a totally free online service whereby you can receive SMS messages online, without the need of inputting your own mobile/cell number. Better yet, these temporary numbers are all based on real SIM numbers, and means you will be able to view any and all information received by this number online.
Burner is a mobile application for iOS and Android made by Ad Hoc Labs, Inc. that allows users to create temporary disposable phone numbers in the U.S. and Canada.