Activating your card is easy. Fill in the information below to get started. Enter your card number without any dashes or spaces. Already registered for online access? Sign on to activate your …

Please activate your new cards at citi.com/activate and safely destroy old cards. Everyone who received a new card should update their account information with any online retailers or …

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Activate your Citibank card online quickly and securely with a simple verification process.

Citi Mobile Snapshot: Instant access to your bank and credit card account summary without signing on every time. Push notifications: Be notified about bank transactions and credit card …

May 30, 2025 · There may be several ways to activate it, such as by phone, online or via the bank’s mobile app. Activating a credit card is usually a quick and simple process. Here, we’ll …

Activate and register your card with Citi Mobile® App 1 Launch the Citi Mobile® App • From the home screen, select Register, then choose Credit Card Note: If you are a Primary card holder …

Activate your Citibank card online securely and access a range of banking services conveniently.

Activate your Citibank card online quickly and securely.

In this video, we’ll guide you through the simple steps to activate your Citibank credit card using the Citi Mobile App, safely and in just a few minutes — no phone call or branch visit...