To add airtime to a Net10 cell phone, a user can go to the Net10 website, choose the option to add airtime, then follow the directions. The user has to enter a 10-digit phone number, then choose from several options to add airtime to the account.
Net10 offers a number of plans to customers including pre-paid plans from 200 to 1,500 minutes. Depending on the plan, a user gets 30 to 180 days to use the phone or the pre-paid minutes, and he can add more via the website or by buying a refill card at a retail store. The price of the pre-paid plans range from $20 to $100, as of 2015.
If a person with a pre-paid plan often runs out of minutes during the duration of the plan, another Net10 option may be a better choice. The basic unlimited phone and text plan from Net10 is $35 a month, and if a person wants to add 500 megabytes of data to a plan, the price rises to $40. A user can also choose plans from Net10 that allow earned upgrades to take place over six, 12 or 18 months. Plans range from $60 to $80 a month, but at the end of the plan period, the user has earned an upgraded phone.