T-Mobile customer service number & support

Wireless carrier. Billing, plans and device support. We are independent and not affiliated with T-Mobile.

Official phone number: +1-800-937-8997

Official chat / help: T-Mobile help centre

Support hours: Phone 24/7 · dial 611 from a T-Mobile phone.

Average wait: 5–12 min.

Best time to contact: Weekday mornings.

How to contact T-Mobile customer service

You can reach T-Mobile by phone or through its official chat / help centre. Have your account email or phone, any order or reference number, and a short description of the problem ready so support can help you faster.

Common T-Mobile problems and how to fix them

Account or billing question

View and pay bills in the T-Mobile app; call 1-800-937-8997 or dial 611 for disputes and plan changes.

Plan change or upgrade

Compare and switch plans in the app; upgrades and trade-ins are tracked under your account.

Device setup or troubleshooting

Restart the phone and toggle airplane mode; for no service, check for a carrier settings update.

SIM or eSIM activation

Activate a new SIM/eSIM in the app or a store; you'll need account verification and your PIN.

Fraud, spam or scam reporting

Use Scam Shield in the app to block spam; never give your account PIN or a code to an inbound caller.

Verified: these details were sourced from T-Mobile's official website and last verified on 2026-06-05 (official source). Never share your password, full card number or a one-time code — genuine T-Mobile support will never ask for them.

It's Genie Assist is an independent customer service directory and is not affiliated with, endorsed by, or connected to any brand listed. Phone numbers and links are sourced from each brand's official website and shown with the date we last verified them.