It can be really frustrating when you can’t find your SIM card details. This is especially true when you need them for a new phone or to fix connection problems. In this Blog we know Find Your SIM Card Number by Dialing: Quick Guide. In the last Blog we learnt about the process of inserting the SIM Card into the mobile and about its activation period. Luckily, there’s a simple way to get your SIM card number – just dial a certain code.

This quick guide will show you how to find your SIM card number by dialing. It’s a straightforward process that makes it easy to get the info you need.
Key Takeaways
- Dial a specific code to retrieve your SIM card number
- Quick and easy process to access SIM card details
- Useful for setting up a new phone or resolving connectivity issues
- SIM card number is essential for mobile network operations
- Retrieve your SIM card number in just a few steps
What Is a SIM Card Number and Why You Need It
The SIM card number is more than just a series of digits. It’s a key to your mobile identity. It distinguishes your SIM card from others, playing a crucial role in mobile telecommunications.

Understanding ICCID, IMSI, and Phone Numbers
Your SIM card has unique identifiers like the ICCID and IMSI. While your phone number is for calling and texting, these are for network identification. Knowing these can help you manage your mobile services better, especially when checking your SIM card number.
Common Situations When You Need Your SIM Number
You might need your SIM card number in various situations. This includes activating a new phone, resolving network issues, or contacting your carrier for support. Knowing how to check your SIM card number using a dial code can make these processes easier.
How Do I Check My SIM Card Number by Dialing
You can easily find your SIM card number by dialing a special USSD code. This method is simple and works on most phones. But, you need to know the right code for your carrier.
Universal USSD Codes for Major US Carriers
Some USSD codes work for many carriers. For example, *#06# shows your phone’s IMEI number, which is linked to your SIM card. But, to get the SIM card number (ICCID), you might need a code specific to your carrier.
| Carrier | USSD Code |
|---|---|
| AT&T | *#123# |
| Verizon | *228 |
| T-Mobile | *#123# |
Carrier-Specific Dialing Codes
Each major US carrier has its own code to check the SIM card number. Here are some common ones:
AT&T Dialing Codes
AT&T users can dial *#123# to get SIM card info.
Verizon Dialing Codes
Verizon users can dial *228 to check their SIM card details.
T-Mobile Dialing Codes
T-Mobile customers can use *#123# to get their SIM card info.
Sprint/Other Carriers Dialing Codes
For Sprint and other carriers, the USSD code might be different. It’s best to check your carrier’s website or contact their customer support for the correct code.

Alternative Methods to Find Your SIM Card Number
There are ways to find your SIM card number besides dialing. You might find it easier to use other methods. These can be just as effective.
Checking in Phone Settings
Looking in your phone’s settings is a simple way to find your SIM card number. Go to “Settings” or “About Phone.” Then, search for “SIM Status” or something similar. Your ICCID or SIM card number should be there.
Using Carrier Apps and Websites
Many carriers have apps or websites where you can see your SIM card details. Just log into your account. Look for “SIM” or “Account” to find your number. This is handy if other methods don’t work.
| Carrier | App/Website | SIM Card Info Location |
|---|---|---|
| Verizon | My Verizon App | Account > SIM Card |
| AT&T | AT&T App | Account > SIM Card Details |
| T-Mobile | T-Mobile App | Account > SIM Card Info |
Physical SIM Card Inspection
If you can get to your SIM card, the number is on it. Look for “ICCID” or “SIM Card Number.” Be careful not to damage it.
Finding eSIM Information
eSIMs work differently. Check your phone’s settings under “eSIM” or “Embedded SIM.” Some carriers give eSIM activation codes or QR codes. These codes have your SIM card number.
Conclusion
Knowing your SIM card number is key for managing your mobile services. We’ve shown you how to find it, like dialing USSD codes, checking your phone’s settings, or using carrier apps.
Dialing specific USSD codes can quickly give you your SIM card number. Each major US carrier has its own code. You can also check your phone’s settings or use carrier apps for the same info.
Having your SIM card number handy makes things easier. It helps with tasks like activating your SIM, solving problems, or moving your number to a new device. By following this guide, you can easily find your SIM card number and manage your mobile services better.
FAQ
How do I check my SIM card number by dialing a code?
Dialing specific USSD codes can show your SIM card number. These codes differ by carrier. For instance, *#06# shows your ICCID. Use *611# for AT&T or #NW# for T-Mobile.
What is the difference between ICCID and IMSI?
ICCID is a unique SIM card number. IMSI is a unique identifier for your SIM card and mobile subscription. ICCID is on the SIM card. IMSI is for authentication and billing.
Can I find my SIM card number in my phone settings?
Yes, your SIM card number is in your phone’s settings. Look under “About phone” or “SIM card status.” Steps vary by device and OS.
How do I retrieve my SIM card number using my carrier’s app or website?
Log into your carrier’s app or website to see your SIM card details. This includes your SIM card number. Check your carrier’s app or website for more info.
Is it possible to find my eSIM information?
Yes, you can find your eSIM information in your device’s settings or through your carrier’s app or website. The steps depend on your device and carrier.
What should I do if I’m unable to find my SIM card number?
If you still can’t find your SIM card number, contact your carrier’s customer support. They can help or guide you through the process.
