A dedicated address is rented per address, usually by the month. Nobody else's behaviour can spoil it, and it never changes, which suits a single long-lived account. It also means one address is all you have.
Rotating pools are shared by nature: the same home or mobile address serves different customers at different times. In exchange you get a very large number of addresses and pay only for traffic. PiratProxies sells pooled, rotating plans; a sticky session holds one address for a while when you need steadiness.
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