Citi’s main customer service number is 1-800-374-9700, available 24/7 for general banking, debit cards, and account questions. For credit cards, call 1-800-950-5114, also available 24/7. With about 650 branches concentrated in major metro areas, most Citi customers rely on phone and app support for day-to-day needs.
Citi Customer Service Numbers
| Service | Phone Number | Hours |
|---|---|---|
| General banking | 1-800-374-9700 | 24/7 |
| Credit cards | 1-800-950-5114 | 24/7 |
For specialized department numbers (mortgage, business banking, Citi Priority), see Citi’s contact page.
How to Reach a Live Person at Citi
Call 1-800-374-9700 and press 0 at each automated prompt, or say “representative.” For credit cards, call 1-800-950-5114 and follow the same steps. Have your account number and Social Security number ready for identity verification.
What to Have Ready Before You Call
- Account or card number
- Last four digits of your Social Security number
- Recent transaction details (if disputing a charge)
Use the App Instead of Calling
The Citi Mobile app handles many common requests without hold time:
- Lock or unlock a card instantly
- Dispute a charge (tap the transaction → “Dispute a Charge”)
- Make payments and check balances
- Send a secure message to support
For more on Citi accounts and fees, see the Citi guide, fees, and routing number.
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