Youll always get what you pay for.
If you sign up for the open public service with multiple location you can be sure those are all blacklisted IP addresses. if you get a Dedicated IP address its better. The best though would be a Dedicated IP address with a guarantee that it is also fresh (non recycyled).
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AGED SUPER HIGH LIMIT ACCOUNTS: 10,000/$1,000,000 and 25,000/$500,000