What's the difference between prepaid and postpaid?
Prepaid means you pay before you use service — no credit check, no contract, no surprise bill. Postpaid bills you at the end of the month and typically requires a credit check. Prepaid plans have gotten so good that most people switching from postpaid are surprised there's any tradeoff at all.
Can I keep my phone number if I switch to prepaid?
Yes. Porting your number is a federal right. Contact your new carrier before canceling the old one, give them your account number and transfer PIN, and the port usually completes in under two hours. Don't cancel the old account first — that makes porting much harder.
Do prepaid plans work with my current phone?
Most do, as long as your phone is unlocked. Phones bought directly from a carrier may be locked to that carrier's network for a period after purchase. Check in Settings > General > About (iPhone) or Settings > Connections > Mobile Networks (Android). If it's locked, contact your current carrier — they're required to unlock it after your contract or device payments are complete.
Is autopay required on prepaid plans?
Not always, but carriers often charge $5–$10/mo more without it. Mint Mobile's annual plan doesn't need autopay since you pay 12 months upfront. Visible rewards autopay with no price penalty. If autopay is required for the advertised price, we flag it in our rankings.
What happens if I run out of data on a prepaid plan?
With most prepaid plans, you won't get cut off — your connection just slows to 128–600 Kbps until the billing cycle resets. You can buy a data add-on to restore full speed mid-cycle. A few bare-bones plans do hard-cap data; we note those where relevant.