> ## Documentation Index
> Fetch the complete documentation index at: https://capitalone-com-activate-helphub.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.
# What You Need Before Activating Your Capital One Card
> Everything you need before activating your Capital One card at capitalone.com/activate.
Activate Your Card → See Online Guide →
Activate Now →
Before you visit **capitalone.com/activate**, make sure you have everything ready. This checklist helps activation go smoothly on the first try.
Gathering these details in advance can save you from re-entering information or being locked out of the process.
## What You Need
1. Your new Capital One card in hand.
2. The 16-digit card number and expiration date.
3. The 3-digit CVV on the back of your card.
4. The last 4 digits of your Social Security Number.
5. Your date of birth and ZIP code on file.
6. A phone or computer with an up-to-date browser.
7. A private, secure internet connection.
## Helpful Tips
* Update your browser (Chrome, Safari, Edge, or Firefox) before you start.
* Turn off VPNs that may block the activation page.
* Have your phone nearby in case a verification code is sent.
* Keep your account username and password ready if you already have online access.
Never share your card number, CVV, or SSN with anyone by phone, email, or text.
## FAQs
Capital One may accept your date of birth and ZIP code for identity verification. Try again with those details.
Yes. The activation page works on mobile browsers, or you can use the Capital One Mobile app.
## Related Articles
* [Online Activation](/activation/online)
* [Register Account](/account/create-account)