A free trial with a new number is the low-risk way to test a carrier: your current line keeps working, and the trial runs as a second line on your phone. But “new number” means different things at different carriers. At some it’s a throwaway that disappears on the last day. At others it can become your permanent number if you stay. And one popular carrier, US Mobile, won’t give you a new number on its free trial at all.
Trials that give you a new number
Every trial below runs alongside your current service, usually on an eSIM (Cricket also mails a SIM card for Android). You get a temporary number on the trial line, and your real number keeps working with your current carrier the whole time.
- Verizon: 30 days, no credit card. You get a temporary number with data, talk and text.
- T-Mobile: 30 days, no card. The temporary T-Mobile number works as a second voice line.
- AT&T: 30 days, 100GB, no card, on a compatible iPhone or Android phone. You get a trial phone number.
- Visible: 15 days on Verizon’s network, no card. You get a trial phone number.
- Cricket: 14 days, 3GB, no card, through the tryCricket app.
- Google Fi: 7 days, up to 10GB of high-speed data, credit card required.
- AirVoice: 30 days, 10GB, card required.
- Mint Mobile: 7 days with 250 minutes, 250 texts and 250MB, card required.
- Appalachian Wireless: 30 days, unlimited, no card. You must live in its home service area.
Which trial numbers you can keep
Settle this before you give a trial number to anyone. The answers split cleanly into three groups.
- Can’t keep it: Verizon says that if you sign up after the trial, you don’t keep the temporary number; you start a new line or bring your existing number. Cricket deactivates its temporary number at the end of the 14 days. Appalachian’s trial number can’t be kept or ported. T-Mobile’s temporary number also goes when the trial ends.
- Can keep it if you join: Visible lets you keep the trial number, or port in your existing one, when you become a customer (the trial number can’t be ported to another carrier). Google Fi moves the trial line onto Unlimited Standard at $50 a month automatically, so the number carries on unless you cancel. AirVoice lets you keep the trial number or port in your own. Mint keeps the number if you convert to a paid plan.
- Not stated: AT&T’s trial page says you get a temporary number and can delete the eSIM when the trial ends, but doesn’t say whether the number can be kept.
US Mobile: no new number on the trial
US Mobile’s 30-day free trial is for number transfers only: you port your existing number to its Warp or Dark Star network, and the line gets 30GB of premium data and 5GB of hotspot. Autopay must stay on for the full 30 days, and the line renews onto Unlimited Premium unless you change the plan at least two days before the trial ends.
If you want a new number instead, US Mobile’s alternative is a paid promo: $45 for 90 days of Unlimited Starter, about $15 a month, then $25 a month. It’s limited to one line per new customer and can’t be combined with other offers. Prices as listed on US Mobile’s get-started page on November 7, 2026.
Which one to pick
- To test and walk away cleanly: Verizon, T-Mobile or AT&T. Thirty days, no card, nothing to cancel.
- To keep the option of keeping the number: Visible (no card) or Google Fi (card; renews at $50 a month unless you cancel).
- To test a budget carrier’s network: Visible runs on Verizon, Cricket on AT&T, and Mint and Google Fi on T-Mobile.
Fourteen carriers sorted by length, with data, card rules and eligibility.
Every free cell phone trial, compared →Frequently asked questions
Can I get a free eSIM trial with a new number? +
Can I keep my trial number? +
Does US Mobile have a free trial without porting a number? +
Do I need a credit card for a new-number trial? +
Will my current number stop working during the trial? +
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Jean writes ShopCellPlans' reviews. He compares carrier plans using each carrier's own published prices, its FCC broadband labels and reporting from named outlets, and ranks them on the bill you actually get, taxes and fees included, not the price on the ad.



