Whether you're an existing Frost customer or interested in becoming one, we'd be happy to be of assistance. And during business hours, you'll always get an actual person on the phone.

Find a Frost financial center near you
Request a call or email

Customer Service Specialists

(800) 513-7678
We are available to assist you 24 hours a day, seven days a week.

Internet Banking Specialists

(877) 714-4932
We are available to assist you 24 hours a day, seven days a week.

Spanish-Speaking Bankers

Call (210) 220-4511 to speak with a Spanish-speaking Frost Representative or to find one at a location near you.

For our International phone number call, 001-800-204-4401.

Mailing Address

P.O. Box 1600
San Antonio, Texas 78296


If you ever forget your PIN, or to report lost or stolen cards call (800) 513-7678.

Gift Cards
Track your balance online at or call (866) 244-5360

Business Credit Cards
Check activity or replace lost or stolen cards by calling Commerce Bank's Client Care Team at (800) 892-7104.

Billing Inquiries (Loan Information Request and Loan Billing Error Resolution Request)

P.O. Box 34746
San Antonio, TX 78265

Human Resources

Frost Human Resources Offices:
Austin: (512) 473-4486
Corpus Christi: (361) 844-1071
Dallas: (214) 515-4991
Fort Worth: (817) 420-5166
Houston: (713) 388-7710
San Antonio: (210) 220-4811
Rio Grande Valley: (956) 702-6617

Report Fraud

If you suspect fraudulent activity on your Frost account, call a Frost Customer Service Specialist immediately at (800) 513-7678 or email