If you are on T-Mobile prepaid, there is no contract and no penalty. You leave whenever you want. If you are on postpaid, the penalty most people fear is the device payment. That is not a penalty: it is a financing installment that continues on its schedule whether you stay or go, and it does not reset or balloon. A true early termination fee only exists if you signed a device contract with an early termination date, which is rare on current plans.
First: are you prepaid or postpaid? Second: open the T-Mobile app and check your device payment balance, and note the schedule. It continues either way. Third: if you have a device contract with an early termination date, check the date and the fee before moving. Fourth: note the AutoPay discount you are giving up, about $5 a month. Factor it in and the switch is still net cheaper on a $50 to $100 bill.
One: get your T-Mobile account number and billing PIN from the top of your bill. Two: activate World Mobile first, using your existing number for the port. Your old line stays active until the port completes. Three: ports usually complete within the hour, and the eSIM arrives in about 30 minutes. Four: once your number works on the new plan, cancel T-Mobile. Prepaid: just stop refilling. Postpaid: cancel in the app or by phone, no exit interview required.
Canceling before the port completes, which can strand your number, is the big one. Always activate the new plan first. Forgetting the billing PIN, which is on the bill, not the app login, delays the port. Letting the old prepaid plan auto refill during the port wastes a cycle. And switching mid cycle on postpaid: you get a prorated refund for the unused days, so time the cancel right after your bill date.
World Mobile runs on the same T-Mobile towers as your current plan, using T-Mobile or AT&T whichever has the stronger signal in your area. Same signal, same coverage map, same 5G. The only things that change are the price, the app, and the fee stack that used to grow every year.
World Mobile: $15 for 2GB, $40 for unlimited 25GB fast, no contract, no credit check, T-Mobile or AT&T (whichever is stronger) plus in-house network where deployed, instant eSIM. 50% off your first month with a referral.
See World Mobile Plans →No contract. No credit check. Keep your number.Prepaid: nothing. Postpaid: nothing, unless you signed a device contract with an early termination fee. Device installments continue on their schedule either way.
Yes. You port it at activation, usually completed within the hour. Same number, same contacts, nothing to update.
Yes, they continue on the same installment schedule. They are tied to the financing, not the carrier.
About 30 minutes to activate the eSIM. Number ports usually complete within the hour.
No. Same T-Mobile towers, or AT&T where it is stronger in your area. The signal you have now is the signal you keep.
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