I don't know the answer to this question, but I'm just curious why were you asking?

 

I have no firsthand experience on this one, but with my knowledge of IP networking, I can almost guarantee that it will be dynamic. The nature of IP routing would make it exceedingly difficult to give you a static IP when your geographic location changes constantly.

 

Correct it is dynamic.

 

you could have a static but that would be expensive because the entire system would have to keep an ipv4 ip address ready at every system and it would only work with 1 tower then unlike wimax that can use multiple towers at once

 

The IP's are Dynamic.. But you can get Static Ip addresses..

Not sure for Consumer accounts but the individual static Ip's cost us 3 bucks a month..

 

its done by tower more than likley or by area.
look at it this way
area a has range 354.598.033.0-255
then you go to area b there ip range is 354.598.034
thats how a wireless system for wimax would work. you would have different reservations based on what grouping of antennas you would be using.
thats what prl dictate when on another companys towers

 

likely the only time you will see it change is if you go on vaca to another city
that or the server lease refresh time. i dont know what the cycles are for that though