AT&T top-ups for United States start at $18.34, with 5 plans up to $89.44 on this page. It gives the most credit per dollar of the 9 main United States operators today. Prices checked 7 November 2026.
| Plan | On the phone | You pay | |
|---|---|---|---|
| Airtime top-up | ≈ $14.12 | $18.34 | |
| Airtime top-up | ≈ $21.18 | $27.23 | |
| Airtime top-up | ≈ $28.24 | $36.11 | |
| Airtime top-up | ≈ $42.36 | $53.89 | |
| Airtime top-up | ≈ $70.60 | $89.44 |
Live from AT&T. Prices are in US dollars and include our service fee; nothing is added at checkout.
You can refill an AT&T prepaid line from abroad by entering the 10 digit number and paying by card, Apple Pay or Google Pay, with the top-up delivered in minutes. Airtime refills land as credit from $18.34, and the amount shown is what reaches the line after any operator tax.
Last checked: September 2026
An AT&T prepaid refill from abroad works the same way as one made at home: you enter the 10 digit US number, choose an airtime amount and pay by card, Apple Pay or Google Pay. The operator is detected from the number, the refill is delivered in minutes, and the credit lands on the existing prepaid line. Nothing needs to be installed on the phone.
AT&T prepaid lines are topped up with airtime, which is credit held on the account. From outside the United States you do not need a US card or a US address. The number itself is the only identifier required, and the dial code for the country is 1.
A common case is a line kept alive while the owner is travelling, or a line used by family back home. As long as the line is prepaid and active, a refill adds credit to it. If the line has already been suspended for non payment, the refill is what restores it, provided the operator still holds the number.
The airtime refills available for AT&T prepaid lines land as credit of 12.5 USD, 18.75 USD, 25 USD, 37.49 USD or 62.49 USD. The amount shown is what lands on the line after the operator's tax, so no further deduction is applied to the credit you receive.
These are airtime amounts rather than bundles with a fixed validity period. The credit sits on the prepaid account and is drawn down by the line's own plan or usage, so what it buys depends on the plan the line is on rather than on the refill itself.
Because the amounts are fixed, the choice is simply how much credit to add. A smaller amount suits a line that only needs to stay active, while a larger amount covers a longer stretch of usage. There is no partial credit and no change given.
Enter the AT&T number as 10 digits, for example (201) 555-0123, or in international form as +1 201 555 0123. The country code is 1 and there is no trunk zero to drop, so the national number and the international number carry the same 10 digits.
Mistyping a digit is the most common reason a refill lands on the wrong line or fails. Check the number against the account before paying, and avoid copying a number with spaces or brackets into a field that expects digits only.
If the number belongs to a different operator, the refill will not apply. The operator is detected from the number itself, so an AT&T refill cannot be sent to a T-Mobile, Verizon, Metro, Cricket, Boost, Straight Talk, TracFone, Lycamobile or Total Wireless line.
A refill that does not go through is usually caused by a mistyped number, a line that is not prepaid, or a line that the operator has already reclaimed. Refills apply to existing prepaid lines only and never to postpaid or contract accounts.
If the number is correct and the line is prepaid, the next thing to check is whether the line is still active with the operator. A number that has been inactive long enough to be reassigned cannot be refilled, because the credit would land on whoever holds it now.
Where a payment is declined, the card or wallet is the place to look rather than the number. Once a payment is authorised, delivery is normally a matter of minutes, and the credit appears on the prepaid balance.
Payment is by card, Apple Pay or Google Pay, and the refill is delivered directly to the number in minutes. No account credentials, passwords or one time codes are ever needed to complete an AT&T prepaid refill.
Keep the payment inside the checkout and treat any request for a password, a PIN or a code sent to the phone as a red flag. A legitimate refill needs the number and the payment method, nothing more.
After paying, keep the confirmation until the credit shows on the line. If the balance has not moved after a short wait, the confirmation is what allows the transaction to be traced against the number that was entered.
Enter the 10 digit AT&T number, choose an airtime amount and pay by card, Apple Pay or Google Pay. The operator is detected from the number, the refill is delivered in minutes, and the credit lands on the existing prepaid line. No US card or address is needed.
Airtime refills land as credit of 12.5 USD, 18.75 USD, 25 USD, 37.49 USD or 62.49 USD. The amount shown is what lands on the line after the operator's tax, so no further deduction is taken from the credit you receive.
No. A refill adds credit or a plan to an existing prepaid line only. Postpaid and contract accounts are billed by the operator directly and cannot be topped up this way. If the line is not prepaid, the refill will not apply.
Use the 10 digit number, for example (201) 555-0123, or the international form +1 201 555 0123. The country code is 1 and there is no trunk zero to drop, so both forms carry the same 10 digits.
Delivery normally takes minutes once the payment is authorised. The credit then appears on the prepaid balance of the line. Keep the confirmation until the balance updates, as it allows the transaction to be traced against the number entered.
Enter it with the country code +1. A number written locally as (201) 555-0123 becomes +1 201 555 0123. US mobile numbers have 10 digits after the country code. The example is a format guide, not a real number.
Enter the number with the country code, pick a plan and pay by card. The operator is detected automatically and the credit goes straight to the phone. You do not need an account or a bank account in United States.
Plans currently start from $18.34 and go up to $89.44, including our service fee. The exact price is shown before you pay, with no extra charges at checkout.
Yes. Slashtel tops up any prepaid AT&T number in United States, your own or a family member's. You only need the number; the person does not need an account.
Recharges are delivered instantly and cannot be reversed once they reach a valid number, so check the number before you pay. If the operator rejects the number, Slashtel resends or refunds you in full.
Prices on this page are in US dollars and include the Slashtel service fee. At checkout your card may be shown and charged in your local currency, and the exact amount is confirmed before you pay.
Yes. Payments are processed by Stripe with 3D Secure where your bank supports it, and Slashtel never sees or stores your full card details.
Most recharges arrive within a few minutes. If the phone is switched off, the credit lands when it next connects. You get a confirmation email with your order reference.
If the operator rejects the recharge, we resend it. If it still can't be delivered, write to esim@slashtel.com or message us on WhatsApp with your order reference and we'll sort it out.