FUP in texting can stand for "Fair Usage Policy". It's a set of rules that internet service providers (ISPs) or mobile carriers use to manage network usage and prevent overuse or abuse.
- For internet service: FUP often limits the amount of data you can download or upload in a given billing cycle. Once you reach the limit, your speed might be reduced or you might have to pay extra.
- For mobile service: FUP applies to calls, texts, and data usage. You might be charged extra for using your phone beyond your allocated usage allowance.
