Key Takeaways
- Your SIM card number is a 19 or 20-digit code printed on the card itself, usually on the back or front depending on your carrier.
- On most phones, you can find the SIM number in Settings under About Phone or Device Information without removing the card.
- Your carrier's website or customer service can look up your SIM number using your phone number or account details.
- If you have removed the SIM card, the number is printed on the card — check both sides and look for small text near the chip.
Check the Physical SIM Card Itself
The simplest way is to look directly at the card. Remove your SIM card from your phone — on most phones this requires a small ejector tool (often included in the box, or you can use a straightened paperclip). Once the card is out, look at both the front and back. The SIM number is a long string of digits, usually 19 or 20 numbers long, printed in small text.
On most cards, the number appears near the bottom or along the edge. Some carriers print it on the front near the chip; others put it on the back. If the text is hard to read, try looking under different lighting or use your phone's camera to zoom in on the photo. Write down the number exactly as it appears — every digit matters.
Find It in Your Phone's Settings on Android
On Android phones, the SIM number is stored in your device settings and you can view it without removing the card. Open Settings, then scroll down and tap About Phone (on some phones this is called Device Information). Look for an option labeled SIM Status, SIM Card Status, or ICCID. Tap it, and your SIM number will appear on the screen.
If you do not see a SIM Status option, try this path instead: Settings > Network & Internet > SIM Cards (or Mobile Networks) > SIM Information. The exact menu names vary by manufacturer — Samsung, Google Pixel, OnePlus, and others arrange these settings differently — but the information is always in the About or Network section. If you are stuck, search your phone's help for "view SIM number" and your phone model name.
Find It in Your Phone's Settings on iPhone
On iPhone, open Settings, then tap General. Scroll down and tap About. Look for the line labeled ICCID — this is your SIM card number. Write it down exactly as shown.
If you do not see ICCID listed, your phone may not be displaying it in that location. Try opening Settings > Cellular > Cellular Plans (on newer iPhones with dual SIM or eSIM). If you are using an eSIM instead of a physical card, the number will still appear here. On older iPhones, the ICCID sometimes appears under Settings > General > About > scroll to the very bottom.
Contact Your Carrier Directly
If you cannot find the number in your settings or on the card, your carrier can tell you over the phone or through their website. Call your carrier's customer service number (it is on your bill or on the back of your physical SIM card). Have your phone number and account information ready. Tell them you need your SIM card number, and they will read it to you.
Alternatively, log into your carrier's online account or mobile app. Most carriers display your SIM number in the account settings or device information section. Look for a page labeled "My Devices," "Device Details," or "SIM Information." The exact location varies — Verizon, AT&T, T-Mobile, and smaller carriers all organize this differently — but it is usually one or two clicks from the main account menu.
What to Do If Your SIM Card Is Damaged or Unreadable
If the number on your card is worn away, scratched, or faded, your phone's settings are your best option. Use the Android or iPhone steps above to pull the number from your device. This works even if the physical card is damaged, because the number is stored in your phone's memory as well.
If your phone also will not display the SIM number in settings, contact your carrier. They have your SIM number on file linked to your account and phone number. This is the most reliable backup when the card itself is unreadable and your phone is not showing the information.
Why You Might Need Your SIM Card Number
Your SIM card number is sometimes needed when you switch phones, report a lost or stolen SIM, replace a damaged card, or troubleshoot network issues with your carrier. It is also required if you are switching carriers and need to port your number to a new provider. Some carriers ask for it when you call to verify your identity or update your account.
Keep your SIM number written down or saved somewhere safe — not just in your phone — in case you lose the device or the card becomes unreadable. A photo of your SIM card (front and back) stored in your email or cloud storage is also a good backup.
Frequently Asked Questions
Is my SIM card number the same as my phone number?
No. Your phone number is what people call you; your SIM card number (ICCID) is a unique identifier for the card itself. They are completely different. If you move your SIM card to a new phone, the SIM number stays the same but your phone number does not change.
Can I find my SIM number if I have already removed the card and lost it?
Yes. Your phone's settings still contain the SIM number even after the card is removed, so use the Android or iPhone steps above. Your carrier also has the number on file. You cannot recover it from the physical card if it is lost, but you do not need to — the information is stored elsewhere.
What if my phone shows two SIM numbers because I have dual SIM?
Phones with dual SIM (two cards or one card plus an eSIM) will show both numbers in your settings. They are labeled as SIM 1 and SIM 2, or Physical SIM and eSIM. Write down both if you need them, or note which one you are looking for based on which carrier it belongs to.
Does my SIM card number change if I get a new SIM card from my carrier?
Yes. Each physical SIM card has its own unique number. If your carrier sends you a replacement card, the new card will have a different ICCID. Your phone number can stay the same, but the SIM card number will be new.
Where exactly is the SIM number printed on the card?
It is usually printed in small text along the bottom edge or side of the card, often below or near the chip. Some carriers print it on the back. Look for a long string of numbers (19 or 20 digits) separate from any other printed information. If you cannot find it, take a photo and zoom in, or hold the card up to a light.