Generally "no contract" means no fixed-term (eg: multi-year) contract. There is always a contract of some sort covering acceptable use, SLA, payment terms, ter

Generally "no contract" means no fixed-term (eg: multi-year) contract. There is always a contract of some sort covering acceptable use, SLA, payment terms, termination rights, and so on. Otherwise you could use as much as you want for any purpose and not pay them a cent and they'd have no recourse. You can even have a contract locking in your price for five years but that you only pay month to month and can leave at any time without penalty.