
H2O Wireless Prepaid Refill
Pay your H2O Wireless prepaid phone bill online.
Enter your phone number to choose the right refill amount and complete secure checkout.

H2O Wireless
The same reliable nationwide 5G network as the big carriers, at a fraction of the price.
Why choose H2O Wireless Prepaid Refill on Refill My?
Use Refill My when you need a fast, secure h2o wireless prepaid refill without downloading an app or creating a carrier account.
H2O Wireless prepaid benefits
- No contracts, no overage fees
- The most dependable 5G Network
- International roaming credit
- International calling options
Instant Refill Process
Enter Details
Phone number and amount
Secure Payment
Encrypted checkout
Instant Refill
Balance updated immediately
About h2o wireless prepaid refill
H2O Wireless is an MVNO running on the AT&T network, with international calling and roaming credit on most plans. Most plans are month-to-month with no contracts and no overage fees.
Network and coverage
H2O Wireless service runs on AT&T's nationwide 5G and LTE network. Coverage and 5G availability are tied to the underlying carrier network rather than to Refill My. Your existing balance, plan, and signal experience are unchanged after a refill.
Available refill amounts
H2O Wireless refill amounts on Refill My start at $20 and go up to $150. Popular amounts include $20, $30, $40, $50, $60. We show all available amounts when you select your phone number, so you can match your existing plan tier.
Activation time
Most H2O Wireless refills apply within seconds of payment. In rare cases, typically when the carrier is queueing transactions, it can take up to 10 minutes for the new balance to appear on your line. You'll receive a confirmation email with the transaction reference as soon as the carrier returns a success response.
Common refill issues
Most failed H2O Wireless refills come down to one of three causes: the phone number is on a different carrier than selected (port-out, BYOD swap), the account is past due or suspended, or the billing ZIP doesn't match the card on file. If a refill fails, your card is not charged and the authorization is voided automatically.
Auto-refill and recurring top-ups
Auto-refill is supported for H2O Wireless accounts directly through H2O Wireless. Refill My processes one-time refills; once your account is active, you can enable auto-pay in your carrier's app or web dashboard.
H2O Wireless Prepaid Refill FAQs
Common questions about topping up your H2O Wireless prepaid balance.