To change your phone number in Alipay, open the official app on a device that is already signed in, go to the account-security settings, and replace the bound number with a new one you control. Alipay verifies the change through the old number or, if that number no longer works, through another verification option offered to the account, and the new binding replaces the old one.［1］ Moving Alipay to a new handset is a separate task: sign in to the same account on the new phone, and if the number is changing too, finish that on the old device first.

Key Takeaways

The Alipay account number and the phone number held by your card issuer are separate records.

Keep the old SIM and signed-in device active until the change and verification are complete whenever possible.

A number already attached to another account may require account-specific resolution; it does not automatically merge the accounts.

If a code does not arrive, check format, roaming, SMS filtering, and resend timing before escalating.

Use only in-app recovery and official support. Never rent a number, borrow an account, or give anyone a one-time code.

Which phone number are you trying to change?

Write down the system that owns each number before editing anything. The number used to sign in to or secure Alipay is not necessarily the number your issuing bank uses for card alerts and authorization. A merchant contact number, delivery number, or profile contact can also be separate.

Record	What it is used for	Does an Alipay change update it?
Alipay login or security phone	Sign-in, account notices, and some verification routes	This is the target of this guide
Card issuer's registered phone	Bank alerts and issuer authentication	No; contact the issuer separately
Identity record	Name and document attached to the account	No automatic change; do not alter it to match a phone
Merchant or delivery contact	A particular order or service	Usually no; update that order or service separately
WeChat phone number	A different account system	No; use the separate WeChat procedure

Check which account is currently open by reviewing your own profile identifiers, recent legitimate transactions, and linked-card suffixes. Do not rely on the visible phone number alone, especially if you have used Alipay with more than one number in the past.

What should you preserve before changing the number?

Keep the app signed in on a trusted device. Do not log out, clear app data, erase the phone, cancel the old SIM, or replace the device until the migration is confirmed. If you can still receive messages on the old number, maintain that access through the change window.

Prepare the new number in international format and verify that it receives ordinary SMS or calls while roaming if applicable. Use a long-term number registered to you or otherwise legitimately controlled by you. Temporary SMS websites, rented numbers, hotel desk numbers, and a friend's number create recovery and privacy risks.

Record only the minimum recovery context: masked old and new numbers, the Alipay account identifier, masked card suffixes, current device, and any official case number. Do not keep a plaintext password, CVV, full identity-document image, or one-time code in the note.

Official visitor guidance explains that overseas phone numbers can be used for Alipay registration and that eligible cards and issuer verification remain separate parts of mobile payment.［2］［3］ The fact that a new number can receive SMS does not establish ownership of the existing account.

How do you change your phone number in Alipay when the old number works?

Alipay's help material says the available method depends on the account's state and distinguishes cases where the original number can still receive verification.［1］ The historic page contains old interface labels, so treat it as proof of the branching logic, not a guaranteed current click path.

Open the official Alipay app on the trusted, already signed-in device.
Confirm the account identity, recent activity, and linked-card suffixes before editing security information.
Enter the current profile, account, or security area and locate the phone-number change action shown in your installed version.
Read which number will receive a code and which additional account or identity checks are required.
Enter the new number with the correct country or region code.
Complete old-number, new-number, device, identity, or payment-password verification only inside the official flow.
Wait for the app to confirm the new bound number; do not interpret the arrival of one SMS as final confirmation.
Close and reopen the account area, verify the masked new number, and check that the same account and linked instruments remain present.

Do not test the result by logging out immediately. First confirm that account notices reach the new number and that another recovery method, if offered, is current. Keep the old number available for a reasonable transition period determined by your carrier and account needs.

What if the old number is unavailable?

Stay signed in. Use the alternative verification or account-recovery option that Alipay presents for the existing account. The exact evidence can vary with device history, identity status, linked cards, region, and risk review. Follow the prompt instead of copying a stranger's document list.

If no usable branch appears, open official Alipay support from the app or a verified Alipay help domain. Explain that you control the existing account but no longer control the old phone number. Provide only the information requested in the official case and redact unrelated details.

Do not create a new account solely to “pull” the number or cards from the old one. Do not ask another person to receive the recovery code. A code proves control of a message route at that moment; it does not by itself prove ownership of the account, identity, cards, or funds.

If the old phone was lost or stolen, also ask the carrier about suspending or replacing the SIM and secure the device account. Treat unexpected Alipay prompts as a possible compromise and use the official security route rather than racing an attacker with repeated codes.

What if the new number is already used or the code does not arrive?

Problem	Safe diagnosis	Avoid
New number is already registered	Identify whether it belongs to another account you control; follow Alipay's account-specific prompt or support route	Assuming the accounts will merge
Country code or format rejected	Re-enter the number in the format shown and check current region support	Inventing a mainland number
SMS code never arrives	Check signal, roaming, SMS blocking, device filtering, and the displayed destination	Rapid resend loops
Code arrives late	Use only the newest still-valid code according to the screen	Trying a stack of old codes
Verification says details mismatch	Compare lawful account and identity records, then use official correction or support	Changing facts randomly
Review is required	Preserve the case and follow the stated official route	Paying a third party to “unlock” it

For a rejected international number, use the foreign-number troubleshooting guide. Check whether your carrier permits service SMS while abroad and whether the phone blocks unknown or short-code senders. Never disable account security broadly just to receive one message.

If Alipay imposes a resend interval or review, wait for the displayed period. Published guides do not establish one universal processing time, attempt limit, or supported-number list for every account, so this article does not invent one.

What must you verify after the number changes?

Confirm that the app shows the new masked number on the same account. Review your identity name, transaction history, linked-card suffixes, account balance if applicable, and security notifications. You are checking continuity, not making a purchase.

Send no money merely to prove the change. If you later need to test a merchant payment, use a legitimate low-risk purchase and verify its status separately. A phone migration does not guarantee that issuer authentication will reach the new number because the bank may still hold the old contact.

Contact each card issuer through its official channel to update the issuer's registered phone if necessary. For a card issued by a mainland Chinese bank, this is the card's reserved phone number, and only the bank can change it. Ask which authorization and fraud-alert channels it uses. Changing the issuer's number does not change Alipay either; the two records must be maintained independently.

Also review recovery email, device access, trusted contacts, or other options only if the current app offers them. Remove an old device only after the new number and primary device have been verified. Preserve the official completion message and support reference without storing secret codes.

How do you transfer Alipay to a new phone?

Moving Alipay to a new handset does not copy the account from one device to another. You sign in to the same account on the new phone and let Alipay verify that login. If you are replacing both the phone and the number, change the number on the old, trusted device first, so the new handset only has to pass one unfamiliar check.

Install Alipay on the new phone only from the official app store for that device, sign in with the account's current bound number, and complete whichever SMS, payment-password, or identity check the app requests. Keep the old phone signed in and charged until the new one shows the same masked number, transaction history, and linked-card suffixes.

Do not erase, sell, or trade in the old handset until the new login survives a restart and account notices reach the current number. If the new phone cannot pass verification and the old one is already gone, you are in the recovery branch described above, so use official recovery rather than registering a fresh account.

How do you handle a failed or suspicious change?

Stop if the app unexpectedly shows another account, missing transaction history, unfamiliar cards, a changed identity, or a request to move the conversation outside official support. Do not continue because a caller says the change is urgent.

Capture the time, current masked number, affected device, exact in-app message, and case number. If you suspect unauthorized access, secure the phone, email, carrier account, and card-issuer channels as appropriate. Ask the issuer about cards only through its official number.

Alipay can decide whether its evidence proves account ownership. A mobile carrier can establish control of a SIM service, and a bank can update its customer contact record. None of those parties automatically controls the others' records. A VPN cannot prove phone ownership, migrate an Alipay account, or recover access. Network access while traveling is a separate layer, covered in the China connectivity planning guide.

For initial setup rather than migration, return to the Alipay visitor setup guide. For WeChat, use the separate WeChat number-change guide.

Summary

Identify the Alipay security number and keep it separate from issuer and order contacts.
Preserve the signed-in device and old SIM until the new number is confirmed.
Follow the current in-app account-security branch instead of an old fixed menu path.
Use official recovery when the old number is unavailable.
Resolve an occupied number or missing code without temporary numbers or resend loops.
Confirm the same account and update each issuer's phone separately if required.
Switch handsets by signing in to the same account after any number change, not by opening a new one.

FAQ

Can I change the Alipay number after losing the old SIM?

Possibly, through the alternative verification or recovery branch offered to the account. Stay signed in and follow the official case; the required evidence varies.

Does changing the Alipay number update my bank?

No. The issuing bank maintains its own customer phone record. Contact it separately through an official channel.

Will changing the number create a new Alipay account?

A proper change should preserve the existing account, but verify the profile, history, and linked-card suffixes afterward. Do not create a second account as a shortcut.

What if the new number belongs to another Alipay account?

Follow the exact account-specific prompt or contact official support. Do not assume the two accounts, identities, cards, or balances can be merged.

Why is the Alipay verification code not arriving?

The number format, roaming, carrier service SMS, filtering, signal, resend interval, or account review may be involved. Check them systematically and avoid rapid requests.

Can a friend receive the code for me?

Do not bind a friend's number to your account. It gives that person a future recovery route and does not prove your ownership.

Should I cancel the old SIM immediately after the change?

Keep it until Alipay confirms the new number and your other services have been migrated, subject to your carrier and security needs.

Do I need to relink every card?

Do not unlink cards pre-emptively. First verify the same account and card suffixes. Follow an official prompt only if a particular card requires action.

Can support ask for my one-time code?

No legitimate troubleshooting requires you to read an authentication code to a caller or chat agent. Enter it only in the official app flow it belongs to.

Disclaimer: This guide provides general account-security information. Available verification, recovery, supported numbers, identity checks, processing, and final outcomes depend on Alipay's current app, the account, the carrier, and lawful evidence.

Sources

Alipay Help Center, How to modify a mobile phone number — https://help.alipay.com/enterprise/knowledgeDetail.htm?knowledgeId=201602062481
International Services Shanghai, How to use Alipay — https://english.shanghai.gov.cn/en-UsefulApps/20240312/f2968c5dcb2d41c895643afa9219ce89.html
State Council, A Guide to Working and Living in China as Business Expatriates (2025 Edition) — https://english.www.gov.cn/2025special/bizexpatsinchina2025

Sources checked 4 October 2026.

How to Change Your Phone Number in Alipay and Switch Phones