Understanding and Managing Your ICCID: A Comprehensive Guide

Your ICCID is the serial number of a SIM card or, on an eSIM, of the plan profile you installed. Most travelers never look at it. It comes up when a provider needs to know which line you mean, or when two lines on one phone have to be told apart.

This guide explains what the number is, how it differs from the EID, IMEI, IMSI and your phone number, where to find it on an iPhone and a Samsung phone, and what you can and cannot do with it.

What is an ICCID? #

ICCID stands for Integrated Circuit Card Identifier. The GSMA's EID specification notes that the ITU-T defines the ICCID, in its E.118 recommendation, as a Primary Account Number. In practice it is usually 19 or 20 digits long. It starts with 89, the code for telecommunications, followed by a country code, an issuer identifier, an account number and a final check digit calculated with the Luhn algorithm (the structure is explained here).

On an eSIM there is no card to print the number on. The ICCID identifies the installed profile, the digital plan, so a phone with two lines has two ICCIDs.

ICCID, EID, IMEI, IMSI and your phone number: which is which? #

These numbers are easy to mix up. This table keeps them apart.

For the IMEI in detail, see our IMEI guide. If your settings show an EID, your phone has the eSIM chip.

Where to find your ICCID #

On an iPhone #

1. Open Settings, then tap General, then About.
2. Scroll down to the EID, IMEI/MEID and ICCID entries (Apple notes you might need to scroll).
3. If you have more than one line, check which line each entry belongs to before you copy a number.

On a Samsung Galaxy #

Go to Settings, tap About phone, tap Status information, then tap SIM card status. Samsung lists the ICCID there with the other SIM details.

On other Android phones #

Menu names vary by phone maker and software version. Look under Settings > About phone for a status or SIM status screen, or search Settings for SIM status. If your phone does not show the number, it is usually printed on a physical SIM card.

What you can and cannot do with an ICCID #

• You cannot change it. The ICCID is assigned to the SIM or profile when it is created, and your phone settings only display it.
• What you manage is the profile. You can turn a line on or off or give it a label. Deleting an eSIM is different: Roamify's help center warns that once an eSIM is deleted it becomes invalid and cannot be reinstalled, so never delete one to fix a connection problem.
• Share it like an account number. Give it to your provider's support when they ask, not in public posts or reviews.
• Do not confuse it with your install details. The QR code, or the SM-DP+ address and activation code for a manual install, tell your phone where to download the profile. They are not your ICCID.

Your ICCID and a travel eSIM #

With a travel eSIM you will mostly meet three things: your order number, the details you use to install, and the ICCID your phone shows afterwards. If you contact Roamify support, have your order number and device model ready, as the help center asks. The ICCID is a useful extra when a home line and a travel eSIM share one phone and you need to say which is which.

Two timing points from the help center: you can install the eSIM before you travel, and the plan starts when you activate it, not when you install it. A dual SIM phone can keep your home line for calls while the travel eSIM carries data. See how dual SIM works.

Frequently asked questions #

Is the ICCID the same as my phone number? #

No. The phone number is what other people dial. The ICCID identifies the SIM or eSIM profile, and a data-only travel eSIM has an ICCID even when it has no phone number.

Is the ICCID the same as the EID? #

No. The EID identifies the eSIM chip in your phone and is 32 digits long. The ICCID identifies the profile installed on that chip, so it can differ from one eSIM profile to the next while the EID stays the same.

Does an eSIM have an ICCID? #

Yes. For an eSIM it identifies the installed profile, so each eSIM line on your phone has its own.

Is it safe to share my ICCID? #

Share it only with your provider's support when they ask, the way you would share an account number. There is no reason to post it publicly.

Why can't I find it in my settings? #

Menus differ by maker and software version. On iPhone, scroll down in General > About. On a Samsung Galaxy, open SIM card status. On other Android phones, search Settings for SIM status. A physical SIM card usually has the number printed on it.

Before you travel #

If you are setting up a travel eSIM, check that your phone supports eSIM and follow Roamify's setup guide. The eUICC explainer covers the chip side in more detail, and you can pick a plan by destination and size in the Roamify app.

How we put this together: Apple and Samsung menu paths come from the support pages linked above, and the definitions of the EID and the ICCID come from the GSMA specification, all checked on October 6, 2026. Roamify details come from the Roamify help center.