Use your Ultra Mobile phone while traveling around the globe with our International Roaming feature! UpRoam allows Ultra Mobile subscribers to add money to their International Roaming balance in amounts of $5, $10 or $20 at a time. Subscribers can UpRoam by logging into their account online, texting ‘UPROAM’ to 6700, paying in person at an Ultra Mobile retail location or calling customer care by dialing 611. Unused International Roaming balances carry over from month to month and never expire!