How To Activate an Airtel SIM in 2025 – Complete Guide

Are you thinking of switching to Airtel or getting a new SIM? Here’s how it works: quick, simple, and smooth!

• Let’s say Vineet is a college student in Hisar, Haryana. He ordered a new Airtel SIM online on May 1st, chose a ₹299 plan, and booked his KYC for May 2nd, 10 AM.
  
  
• Airtel's executive came right on time, verified his Aadhaar, and the SIM was active by 2 PM, right?
  
  
• His friend Simran ported her number from Jio. She texted PORT 9876543210 to 1900, got her UPC, and in just 3 days, her new Airtel SIM was live after a quick *123# activation.
  
  
• Oh, and Aman? He has an iPhone 14. He just sent an SMS saying eSIM aman123@email.com to 121, got a confirmation call, and then scanned a QR code. That’s it—his Airtel eSIM was active in just a few minutes!

Isn’t it great how easy Airtel makes everything, whether you like doing things online or going to the store? Let’s get started!

How To Purchase Your Airtel SIM Card Online?

1. Visit Airtel Online: Go to the Airtel website or download the Airtel Thanks app on your smartphone.
   
   
2. Select ‘New Prepaid SIM’: Navigate to the Prepaid section and choose a new prepaid SIM option.
   
   
3. Fill in Your Details: Complete the online form with your personal information, such as name, mobile number, and delivery address.
   
   
4. Choose Your Plan: Browse and select a prepaid plan that fits your data and calling needs.
   
   
5. Schedule Doorstep KYC: Pick a convenient date and time for an Airtel representative to visit your address for KYC (Know Your Customer) verification.
   
   
6. Get Your Documents Ready: Prepare valid identity and address proof documents (like Aadhaar, PAN, or passport) for verification.
   
   
7. KYC Verification at Home: An Airtel executive will arrive at your location to verify your documents and complete the KYC process.
   
   
8. SIM Activation: After successful verification, your SIM card will be activated, and you can start using Airtel services.
   
   Read More – How To Block an Airtel SIM Card?
   
   

How To Purchase Your Airtel SIM Card Offline?

1. Collect Your Documents
   Prepare valid identity and address proof. Common documents include an Aadhaar Card, Voter ID, Passport, Driving License, and recent utility bills (e.g., electricity and water).
   
   
   
2. Find a Nearby Airtel Store
   Visit the nearest authorised Airtel store in Kheri. You can find one near you using the Airtel Store Locator on their website.
   
   
   
3. Visit the Store and Complete KYC
   Go to the store with your documents. An Airtel representative will assist you with the KYC (Know Your Customer) process, including photo verification and document submission.
   
   
   
4. Get Your SIM and Activate
   After KYC is done, you'll receive your new SIM card. Activation usually happens within a few hours.
   
   
   
5. Track Activation (Optional)
   
   Download the Airtel Thanks app to check the activation status and explore your plan details.

How To Activate Your New Airtel Prepaid SIM?

Let’s say, Raj got a new Airtel SIM with the number 12345678901234567890. Using his old Airtel phone, he texted SIM 12345678901234567890 to 121. Airtel replied—he sent back 1. Soon, he got an automated call, pressed 1 to confirm, and waited. Within minutes, Raj’s new SIM was active. He popped it into his phone and started calling and browsing instantly.

Here’s the step-by-step process on how to activate your new Airtel prepaid SIM

Get Ready

• Have your new Airtel SIM card and its 20-digit SIM number handy.
• Keep your existing Airtel number active, as you'll send the activation request from it.
  
  

Send the Activation SMS

• Open your phone’s messaging app.
• Type: SIM <20-digit SIM number> (example: SIM 12345678901234567890)
• Send the message to 121 from your existing Airtel number.
  
  

Confirm the Request

• You'll receive a confirmation SMS from Airtel.
• Reply with 1 to confirm the activation request.
   

Verify via Automated Call

• Airtel will place an automated call to your number.
• Follow the voice prompts and confirm your consent by pressing 1 during the call.
  
  

Activation Complete

• Your new SIM will be activated within a few minutes.
• Insert it into your phone, and you're ready to use calls, SMS, and mobile data.

How To Activate an Airtel SIM via Mobile Number Portability (MNP)?

If you're switching from another network to Airtel and wish to retain your existing number, follow these steps:

1. Start the Porting Process

• Send SMS to 1900: From your current SIM, text PORT <your 10-digit mobile number> to 1900.
   Example: PORT 9876543210
  
  
• Receive UPC: You'll get a Unique Porting Code (UPC) and its expiry date via SMS.
  
  
• Choose a Plan & Complete KYC: Visit the Airtel Thanks app or website, choose “Port to Airtel,” pick a plan, and complete KYC (Know Your Customer) digitally or in person.
  
  

2. Get Your New Airtel SIM

• Visit an Airtel Store (Optional): If you prefer, you can go to an Airtel store to get your SIM and assistance.
  
  
• Bring Documents: Carry your UPC, ID proof, and a passport-sized photo.
  
  
• Complete KYC at Store: Submit documents and finish the KYC verification with an Airtel executive.
  
  

3. Activate Your Airtel SIM

• Insert the New SIM: Once porting is approved (usually takes 2–5 days), insert your new Airtel SIM into your phone.
  
  
• Dial *123#: This initiates activation.
  
  
• Enter PIN if Prompted: Use the default PIN 1234 or your custom PIN.
  
  
• Check for Network: Your phone should now display the Airtel network.
  
  
• Recharge if Needed: Ensure your account has a balance or recharge via the Airtel Thanks app.

Also Read - How to Close Airtel Payment Bank Account

How to Activate Airtel eSIM?

Let’s say Aman bought a new iPhone 14 and wanted an Airtel eSIM. He texted eSIM aman123@email.com to 121 from his Airtel number. Airtel emailed him a confirmation, which he verified. After saying “yes” on a 121 call, he got a QR code. Aman scanned it under Settings > Mobile Network, followed the prompts, and within minutes, his Airtel eSIM was active.

Check Device Compatibility
Ensure your smartphone supports eSIM and is compatible with Airtel. You can verify this on the Airtel website or platforms like Bajaj Finserv.

Start the eSIM Request

• From your Airtel number, send an SMS in the format:

eSIM <your registered email>
And send it to 121.

Verify Your Email
Airtel will send a confirmation email to your registered email address.
Open the email and follow the instructions to verify your request.

Provide Consent via Call
You'll receive a verification call from 121. Confirm your consent to proceed with the eSIM activation.

Receive the QR Code
Once verified, Airtel will send you a QR code via email. This QR code is required to set up your eSIM.

Scan the QR Code on Your Device

• Go to your phone’s settings (usually under Mobile Network or Cellular settings).
• Select Add Mobile Plan or Add eSIM.
• Scan the QR code you received.
  
  

Activate the eSIM
Follow the on-screen instructions to complete the eSIM profile download and enable it.
Your phone should now connect to the Airtel network using the eSIM.

Conclusion

Getting an Airtel SIM is simple. You can order it online or buy it from a nearby store. If you’re switching from another company, just send a message and follow a few easy steps. You can even use an eSIM if you have a smartphone like an iPhone. Whether it’s for new users or people changing networks, Airtel makes everything quick and smooth. Fast steps, easy setup, and a strong network, Airtel keeps it simple!

FAQs

How can I buy a new Airtel SIM online?
Visit the Airtel website or app, choose a plan, fill in your details, and schedule KYC at home.

How do I activate my new Airtel prepaid SIM?
Send an SMS in the format SIM <20-digit SIM number> to 121 from your old Airtel number.

How do I port my number to Airtel from another network?
Send PORT <your number> to 1900, get the UPC, and complete KYC to receive your Airtel SIM.

How long does it take to activate an MNP Airtel SIM?
It usually takes 2–5 working days after submitting your UPC and documents.

How can I activate Airtel eSIM on my phone?
Send eSIM <your email> to 121, confirm via call, and scan the QR code sent to your email.