Most AT&T PREPAID monthly plans provide 30 days of service, but that is only one of several expiration clocks. Refill funds can expire after 30, 90, or 365 days depending on the amount deposited, and a phone account may be canceled 60 days after it expires if you do not restore it.
The key is to distinguish your plan’s service period from the expiration date of money in your account and the later deadline for keeping the account and number.
AT&T PREPAID expiration at a glance
| What expires | AT&T rule |
|---|---|
| Most monthly phone plans | 30 days; expires at 11:59 p.m. Central Time on day 30. The activation date counts as day one. AT&T consumer service agreement |
| Some multi-month plans | A specific AT&T offer describes 90 days as three 30-day periods. Availability and terms depend on the plan. AT&T three-month plan details |
| Account payment of $10–$24 | Expires after 30 days. AT&T consumer service agreement |
| Account payment of $25–$99 | Expires after 90 days. AT&T consumer service agreement |
| Account payment of $100 or more | Expires after 365 days. AT&T consumer service agreement |
| Phone account after expiration | AT&T states that a phone-plan account is canceled 60 days after expiration if it is not restored. This is not 60 extra days of included service. AT&T consumer service agreement |
| Data-plan account after expiration | The consumer agreement states that data-plan accounts are canceled 365 days after expiration. Confirm the rule for your specific product. AT&T consumer service agreement |
These are separate clocks. A monthly plan can renew every 30 days using account funds that have a longer expiration period. But if the available balance cannot cover the renewal charge, service can stop even while some funds remain.
How long does a monthly AT&T PREPAID plan last?
AT&T describes its monthly PREPAID service period as 30 days, not a calendar month. The agreement says the plan expires at 11:59 p.m. Central Time on the 30th day, counting the activation date as the first day. If you activate late in the day, that day still counts, so your first period may be less than 30 full 24-hour intervals. Read AT&T’s consumer service agreement.
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The plan renews only if the payment succeeds or the account has enough money to cover the applicable charge. AT&T says the plan charge is deducted at the end of the day on the payment due date. When there is not enough money, plan services, data services, and pay-per-use services may become unavailable until payment is made or the plan renews. A remaining balance does not by itself guarantee continued service.
Example: plan term versus account balance
Suppose a customer has a monthly plan and deposits $50. The plan may still be due for renewal after 30 days, even though the $50 payment falls in the agreement’s 90-day account-balance expiration tier. The balance’s expiration deadline does not turn the monthly plan into 90 days of service.
How long does refill money last?
Under AT&T’s consumer service agreement, the expiration period for an account payment depends on the amount deposited: $10–$24 expires after 30 days, $25–$99 after 90 days, and $100 or more after 365 days. Unused account balance is forfeited when it expires. See the agreement’s payment terms.
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Those periods apply to deposited account funds, not automatically to the plan or service you selected. Plan charges can use the money before its nominal expiration date, and taxes or fees may affect how much is needed for a renewal. Check the expiration date shown for your own line rather than estimating from the date of a refill.
What happens when a plan or balance expires?
If a plan cannot renew, the included plan services may stop. AT&T’s support guidance says a phone account must be restored within 60 days of its balance-expiration date; otherwise, the account is canceled and the number may be lost or reassigned. Treat those 60 days as a restoration window, not as active paid service or a guarantee that a number will remain recoverable until the last moment. AT&T’s re-establish-service instructions.
If the account has already been canceled, AT&T says you need a new SIM card and plan to re-establish PREPAID service. Its guidance warns that you may need a new number or may lose the original one. If keeping your number matters for banking, two-factor authentication, work, or account recovery, contact AT&T promptly instead of waiting until the end of the window.
AT&T’s agreement gives data-plan accounts a different cancellation period: 365 days after expiration. Do not apply the phone-line timeline to a tablet, hotspot, or other data-only product without checking that product’s terms.
How to check your exact renewal or expiration date
Use the date shown for your own account when planning a payment. AT&T’s screens and phone menus can change, but these are the published ways to check:
- Online: Sign in to your AT&T account, select Manage Prepaid account, and review the account summary, balance, plan, and renewal information. To review transactions, open Account History. AT&T’s account tools also support payments, AutoPay, usage, plan changes, and add-ons. Manage an AT&T PREPAID account.
- From your AT&T PREPAID phone: Dial
*777#. AT&T says the response provides account and data-balance information, including package details. Check usage with AT&T PREPAID. - By phone: Call
611from an AT&T wireless phone or800-901-9878. In the automated system, use the Balance and payments prompts to hear the balance and expiration date. Verify an AT&T PREPAID payment.
What AutoPay changes—and what it does not
AutoPay is a way to make the renewal payment; it does not lengthen the plan term. AT&T says AutoPay payments are processed one day before the due date for monthly plans and one day before the balance expires for non-monthly plans. Without AutoPay, a missed renewal payment can turn service off, and AT&T warns that a phone number may be reassigned after 60 days. AT&T AutoPay information.
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AutoPay reduces the chance of forgetting a payment, but a payment can still fail. Check that AutoPay is enabled and the payment method is current, and make sure the available funds cover the charge. An expired or replaced card, insufficient funds, a verification problem, or an unexpected change in the amount due can interrupt a renewal.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Three-month plans, data-only service, and add-ons
Multi-month plans are specific offers
AT&T’s support page describes a specific $99 three-month plan as 90 days of service made up of three 30-day periods, with renewal at 11:59 p.m. Central Time on day 90 if the next $99 payment is made. The offer’s price, availability, eligibility, and features are plan-specific and may change; it is not evidence that every AT&T PREPAID plan lasts 90 days. The page also says the advance payment is nonrefundable and unused services may be unavailable if you change plans before the period ends. See the terms of that three-month offer.
Data allowances and add-ons follow their own terms
Data allowances, speeds after an allowance is used, hotspot access, add-ons, and rollover rules depend on the plan. For example, the cited three-month offer describes 8GB of high-speed data per 30-day month and speeds up to 128 Kbps after that period’s allowance is used. That detail should not be assumed to apply to other plans. Plan-specific three-month offer details.
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AT&T’s materials for certain add-ons say they are valid for 30 days while the account balance has not expired and the underlying plan remains active; that condition is product-specific. AT&T Wireless Home Phone quick-start guide. Older plan materials describe rollover data expiring after a renewal period or when the plan changes, but that is not a universal current rollover rule. Check the terms for your active plan before counting on unused data. AT&T plan document.
Changing a plan mid-period
Changing plans can affect remaining services or data, and Multi-Line accounts have additional controls and proration rules. AT&T’s guidance says the account owner may control plan changes for member lines and that changing a member’s plan can prorate high-speed data for the remaining term. Review the rules for your line before making a change. AT&T Multi-Line and plan-change guidance.
Quick Recap
How to avoid losing service or a number
- Check the next renewal or expiration date in your account instead of assuming it falls on the same calendar date each month.
- Keep enough available balance to cover the full renewal charge, including any applicable taxes or fees.
- If using AutoPay, verify that it is on and the payment method remains valid.
- Pay before the service period ends if uninterrupted access matters; do not treat the post-expiration restoration window as extra service time.
- If your line has expired and the number is important, contact AT&T promptly to confirm whether the account can still be restored.
- For a tablet, hotspot, or other data-only product, confirm its specific expiration and cancellation terms rather than relying on smartphone-plan rules.
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