Capital One Customer Service Phone Number & Contact Information
Looking for the best way to contact Capital One and reach a live agent? Find the official primary customer service phone number and direct contact details. Get fast help with account inquiries, billing, technical support, and general assistance from a live representative.
Editorial note: DialIndex curates publicly listed customer service contact details and links back to official company websites when available. Always verify time-sensitive details on the official source before calling.
Last verified: 28 Mar 2026
How to Contact Capital One
Capital One Financial Corporation is a bank holding company specializing in credit cards, auto loans, banking, and savings accounts.
The main listed Capital One customer service number on this page is +1 877 383 4802. DialIndex also organizes additional support contact details by department so users can choose the most relevant phone line before they call.
This page currently lists 1 support phone number across 1 department and links back to capitalone.com when an official website is available. Always verify urgent or time-sensitive contact details on the official source.
Capital One Customer Service Phone Numbers
Capital One has 1 customer service phone number across 1 department for billing, technical support, account help, and general assistance.
| Phone Line | Phone |
|---|---|
| General Banking | |
Customer Service | 8am-11pm ET |
Call nowCapital One Customer Service FAQ
You can activate your new Capital One credit card online or through the mobile app.