Daily Life
Changing Your Mobile Number in China: An Account Migration Guide for Foreigners
A practical guide for foreign residents changing a Chinese mobile number, including banks, payments, government services, work accounts, deliveries, security, and a migration checklist.
Rules and procedures can change. Check the linked official sources before acting on time-sensitive information.
Quick answer
What you need to know
Keep the old SIM active while you inventory every account tied to it, update high-risk identity and payment services first, test recovery routes, and preserve evidence before closing the number.
- Do not cancel the old number until important accounts, recovery methods, and contacts have been migrated and tested.
- Prioritize banks, payment tools, mobile service, government portals, employer systems, email, and password recovery.
- A phone-number update does not automatically propagate between unrelated institutions or apps.
- Keep screenshots, service receipts, and case numbers for any account that cannot be changed immediately.
A Chinese mobile number often becomes a quiet identity key. Banks, payment tools, delivery apps, building access, government services, work accounts, schools, hospitals, and password recovery may all depend on it. Changing the number is therefore an account-migration project, not just a SIM swap.
Keep both numbers during a migration window
If possible, activate the new number before closing the old one. Confirm real-name registration, plan terms, roaming needs, cancellation procedure, and whether any prepaid balance or bundled broadband is affected. The SIM card guide explains the basic carrier setup.
Build an inventory by searching your email, password manager, text messages, and app list for the old number. Record the service, update status, recovery method, support channel, and date tested.
Update high-risk accounts first
Start with mobile carrier access, primary email, password manager, banks, payment platforms, cards, investment or insurance tools, and government or tax portals you actually use. Then update employer systems, residence services, healthcare, school, utilities, internet, deliveries, transport, subscriptions, property management, and trusted contacts.
Changing the number shown in an app profile may not change a bank’s registered contact or a card’s verification number. Check each layer separately. For bank-specific preparation, use the bank account guide and the mobile payments guide.
Test login and recovery, not only the profile
After each update, sign out only when you know the password and recovery route. Test a fresh login, security notice, payment confirmation where appropriate, and password-reset destination. Add a verified email, device passkey, or other provider-supported backup method when available.
Never read a verification code to an unsolicited caller. Use official app support, a carrier shop, bank branch, or published service number when identity checks fail.
Coordinate work and household records
Tell HR and IT about the change through an approved channel. Ask about payroll, benefits, attendance, enterprise messaging, multifactor authentication, emergency contacts, building access, travel booking, and work-permit administration records. Family members should also update school pickup lists, clinic files, landlord contacts, and property-management access.
If the number changes during a move, combine this task with the address update checklist. Keep the phone-number change distinct from any legally required address or immigration update.
Mobile-number migration checklist
- New SIM is real-name registered, active, funded, and tested for calls and messages.
- Old SIM remains accessible during the migration window.
- Email, password manager, banks, cards, and payment platforms are updated first.
- Government, employer, school, healthcare, insurance, utility, and property records are checked.
- Delivery, transport, shopping, subscription, and social accounts are updated.
- Fresh login and account-recovery routes are tested for critical services.
- Trusted contacts receive the new number through a known channel.
- Screenshots, receipts, and unresolved support case numbers are retained.
- Old service is cancelled only after dependencies and any bundled products are confirmed.
Official reference points
Carrier processes and account-verification rules vary. Confirm current requirements directly with the carrier, bank, employer, authority, or service provider responsible for each record.
Frequently asked questions
Common questions
Can I cancel my old Chinese mobile number immediately?
It is safer to keep it active during a controlled migration. Confirm cancellation terms with the carrier and test critical logins and recovery routes before closing it.
Will changing my bank phone number update payment apps automatically?
Do not assume so. Banks, card records, payment platforms, and individual services may hold separate phone fields and require separate verification.
What if I no longer receive codes on the old number?
Use the provider's official recovery or identity-verification route. Avoid unverified agents and ask the carrier whether the old number can still be restored or reissued.
Should I update my employer?
Yes. Ask HR and IT which payroll, benefits, attendance, security, emergency-contact, and work-account records use the old number.
