Card activation.citi.com Login and Activate Citi Card

Here’s how you can securely activate your Citi card through the official site cardactivation.citi.com (or citi.com/activate): Go to citi.com/activate in your web browser.

✅ Activation Methods

1. Activate Using Citibank Online (Website)

1. Go to citi.com/activate in your web browser.

2. Log in using your Citibank User ID and Password / IPIN.

3. Navigate to Services → My Profile → Card Activation.

4. Choose the card you want to activate.

5. Enter:

   • 16‑digit card number (without spaces),

   • Expiry date,

   • CVV (if required),

   • ATM PIN (if prompted),

   • OTP received on your registered mobile.

6. Submit to complete activation. You should receive a confirmation SMS/email immediately.

Note: In some regions (e.g. U.S.), you may be asked for SSN or DOB instead of ATM PIN.

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2. Activate via Citi Mobile App

1. Open the Citi Mobile App (iOS/Android) and log in.

2. Select “Activate your card” or “Register or Activate a card” in the Credit Cards section.

3. Follow in-app steps:

   • Scan or manually enter your card details.

   • Enter CVV, DOB (if requested).

   • Enter OTP or Mobile Token PIN.

   • Generate a new 4‑digit ATM PIN if required.

4. Activation is usually immediate, and confirmation is sent via SMS/email.

3. Activate via SMS (India-specific option)

If Citi supports this in your region (e.g. in India):

• Send the following SMS from your registered mobile number:

  ACT <last 4 digits of card>


• Send to the designated number (e.g. 6058).

• You should get an SMS confirmation once activated.

4. Activation via Phone Banking (Customer Care)

If the online or app process fails:

1. Call the customer care number on the back of your card or regional number (e.g. 1860‑210‑2484 in India).

2. Follow IVR options for “Card Activation” or speak to a representative.

3. Provide requested verification – card number, DOB, etc.

4. OTP may be sent for confirmation.

5. Representative will activate your card; you’ll receive SMS/email confirmation.

⚠️ Troubleshooting Tips

🔁 Activation Loop Issue

Many users report being stuck in an endless activation-login loop when trying online.
If you’re facing this:

• Log out completely

• Use the “Register” or “Activate” link again (sometimes re‑registration helps)

• If unresolved, call Citi support to reset your online profile, or request deregistration and re-registration of the card.

📵 Not Receiving OTP or SMS

If OTPs are missing or SMS are delayed:

• Confirm your registered mobile number is correct.

• Contact Citi via call or chat to verify your contact info and resend the OTP.

🛂 Account Lock

Repeated verification failures (like via phone wallet setup) can trigger temporary account lock, requiring manual resolution or waiting period.