Comerica Bank, a subsidiary of Comerica Incorporated, is a leading financial services company headquartered in Dallas, Texas. With a history spanning over 175 years, Comerica has established itself as a premier business-focused bank, strategically aligned into three major business segments: The Business Bank, The Retail Bank, and Wealth Management. While it maintains a strong presence in its primary markets of Texas, Michigan, California, Florida, and Arizona, Comerica serves clients globally through specialized commercial and investment units. Known for its relationship-based approach, the bank is frequently recognized for excellence in small business banking and advisory capabilities.
Comerica Bank Customer Support Number Directory
Below are the verified contact numbers for Comerica Bank services as of 2026. Please ensure you use the number associated with your specific region or account type for the fastest service.
| Department / Service | Phone Number |
|---|---|
| Main Customer Service (Eastern/Central) | 1-800-266-3742 |
| Customer Service (Mountain/Pacific) | 1-800-522-2265 |
| Web & Mobile Banking Support | 1-888-444-9876 |
| Treasury Management Relationship Center | 1-800-852-3649 |
| Personal & Business Credit Cards | 1-866-486-1015 |
| Report Lost or Stolen Cards (24/7) | 1-800-572-6620 |
| International Support (Outside US/Canada) | +1-734-632-5181 |
Comerica Bank Support Hours (Eastern Time)
Comerica provides live assistance during the following windows, while automated voice systems remain available 24/7 for balance inquiries and transfers.
- Customer Contact Center: Mon–Fri 8:00 AM – 9:00 PM ET; Sat 8:00 AM – 5:00 PM ET.
- Web & Mobile Banking Support: Mon–Fri 8:00 AM – 9:00 PM ET.
- Treasury Management Support: Mon–Fri 8:00 AM – 8:00 PM ET.
How to Talk to a Live Person at Comerica Bank
Comerica’s phone system is designed to provide quick self-service, but you can reach a human agent by following these steps:
- Dial 1-800-266-3742 (or your regional number listed above).
- When the automated greeting begins, you may be prompted to enter your account or card number. If you do not have it, simply wait for the next prompt.
- Say "Representative" or "Agent," or press 0.
- Pro Tip: Enroll in Comerica VoiceSafe. This biometric tool recognizes your voice, allowing you to bypass multiple security questions and get to a live person faster.
You may also find helpful support pages for other banking and financial services.
Explore additional customer support guides for related services.
Frequently Asked Questions (FAQ)
What is the Comerica Bank routing number?
Comerica routing numbers vary by the state where your account was opened:
- Michigan: 072000096
- Texas: 111000753
- California/Arizona: 121137522
- Florida: 067012099
How do I report a fraudulent transaction?
If you suspect unauthorized activity on your account or have responded to a suspicious email, call 1-888-444-9876 immediately. For lost or stolen debit cards, use the 24/7 line at 1-800-572-6620.
Can I open a Comerica account online?
Yes, you can open many personal checking, savings, and CD accounts via the Comerica website. You will need a valid U.S. government-issued ID, your Social Security number, and a U.S. residential address.
Does Comerica Bank offer Zelle?
Yes, Zelle is integrated into the Comerica Mobile Banking® app, allowing you to send and receive money directly from your checking account.
How can I find my full account number?
You can find your account number at the bottom of your physical checks (following the 9-digit routing number), on your paper or electronic statements, or by logging into Comerica Web Banking and clicking on your account details.
