If you're looking to change your phone number for free, there are a few different ways you can go about it. First, if you have a landline phone, you can simply contact your service provider and request a new number. This may involve a small fee, but it's generally quite affordable. Alternatively, if you have a cellphone, you can port your old number to a new carrier - this is usually free of charge. Finally, if you're looking for a completely new phone number, there are various online services that will give you a free temporary number that you can use for whatever purposes you see fit.