Putting a phone number "on ice"
Let's say I'm leaving the country for a while, perhaps 2 years. During this time I want to preserve my number indefintiely in case I would like to use it on my return. Is there a cheap way to do this? E.g., porting my number to a very long expiry pre-paid plan? If it worked out to say $10 a that would be too much, but something like $1 might work.