Was oder wer ist die icc nummer

An ICCID (Integrated Circuit Card Identification) number is a unique identifier for circuit cards, such as SIM cards, credit cards, and national identification cards.

In this article, we’re interested in telecommunications. More precisely, SIM cards for IoT connectivity.

If you’re looking for where to find the ICCID number, you can find it stored within the SIM card’s memory, and you can typically find the ICCID printed on the card itself.

ICCID numbers are helpful for IoT solutions as they help devices identify themselves when connecting to networks and are used when retrieving or updating information on SIMs over the air.

In this article, we’ll look at:

• The structure of an ICCID number
• How to find a SIM’s ICCID
• ICCID, IMSI, and IMEI

The structure of an ICCID number

The International Telecommunication Union (ITU) made the graphic below that shows the structure of the ICCID:

The structure of an ICCID number according to ITU.

Here’s an example ICCID number for an Onomondo SIM:

ICCID = 89 + 45 + 73 + 0000271204 + 3

The number above is made up of from a combination of the following identifiers:

ICCID = MII + CC + IIN + IAIN + C

MII (Major Industry Identifier) + CC + IIN + IAIN + C

The first two digits identify the industry application of the circuit card. So you’ll always see 89 as the first SIM card ICCID number, which signifies telecommunication purposes.

MII + CC (Country Code) + IIN + IAIN + C

We operate out of Denmark, so the country code is 45. For US-based MNOs and MVNOs, their country code is 1, so the ICCID becomes 19 digits (including the checksum). If we were based in Iceland, our 354 country code would make the ICCID 21 digits.

MII + CC + IIN (Issuer Identifier Number) + IAIN + C

Onomondo’s operator code is 73, which is used as our Issuer Identifier.The Issuer Identifier can be more than two digits. Sometimes it is referred to as the same as the Mobile Network Code (MNC), but the operator code and the MNC are not necessarily the same value.

MII + CC + IIN + IAIN (Individual Account Identification Number) + C

The other numbers in the ICCID, not counting the checksum, are the unique identifier for the SIM. The IAIN differentiates individual IoT SIM cards from the rest, meaning you can activate and remotely find your SIM globally.

MII + CC + IIN + IAIN + C (Checksum)

The checksum is used to validate the integrity of the ICCID number after transmission. It’s calculated from the other digits in the ICCID using the Luhn algorithm.

How to find a SIM’s ICCID

You’ll need to use the ICCID to manage specific SIM cards. You’ll find it printed on the card or packaging, but that will not be helpful when operating devices remotely.

Here’s how to find an ICCID using a range of methods.

Via AT commands

You can access information on devices using AT Commands (ATtention commands) which are instructions used to control a modem. AT is the abbreviation of ATtention.

If you’d like to read about testing connectivity and establishing a data connection using AT Commands, you can pop over to this help article to learn more: How do I test connectivity with AT commands?

There are some universal commands which should work across all modem types. They are covered in the ETSI Technical Specification: AT command set for User Equipment (UE).

Unfortunately, there’s no universal AT command for ICCID, it is a proprietary implementation, meaning it will vary from manufacturer to manufacturer.

Here are some specific AT Command examples for fetching ICCID from manufacturers:

U-blox = AT+CCID

Source: U-blox AT Command manual.

SIMCom = AT+CCID

Source: SIM800 Series_AT Command Manual_V1.09.

Nordic Semiconductor = AT%XICCID

Source: nRF91 AT Commands.

Telit = AT#CCID

Source: Telit AT Commands Reference Guide.

Quectel = AT+QCCID

Source: Quectel EC25 Command Manual.

Cinterion = AT+CCID

Source: Cinterion ELS61-E2 AT Command Set.

Beware that these AT Commands may also differ from series to series, so always check the manual.

Via the Onomondo Platform and API

When using the Onomondo platform, you’ll see the ICCID on the SIM view in the SIM information panel.

You can quickly get all SIM IDs connected to your account via the Onomondo API as well. The response will include the ICCIDs.

When you know the ICCID of a SIM you’d like information on, you can use the ICCID to make SIM calls over the API.

ICCID, IMSI, and IMEI

It’s pretty easy to confuse ICCID with the IMSI or IMEI numbers.

In short, ICCID is the SIM card identifier, IMEI is the device identifier, and IMSI identifies identifies the SIM card user.

We recommend using ICCID to identify SIMs, as it’s more static.

IMSI

IMSI (Multiple International Mobile Subscriber Identity) is a unique code used by MNOs and MVNOs to identify and authenticate subscribers when they attempt to connect to the network.

It has the following format:

• MCC = Mobile Country Code
• MNC = Mobile Network Code
• MSIN = The unique number that identifies the subscriber

In Onomondo, you can see which networks your devices attach to using MCC and MNC. You can see this information using one of our insights tool called Network Logs.

Network Logs show you which networks your devices attach to.

IMEI

Every mobile phone and modem has a unique 15-digit IMEI (International Mobile Equipment Identity). This number is a unique identifier for your phone or modem that you can use to check information about the device.

More terms in our glossary

Telecommunications and IoT are industries jam packed with acronyms and hard to remember terminology. But don't worry, we've got you covered. You can learn about more relevant terms for IoT in our glossary: The Definitive IoT Glossary.

Wo finde ich meine Iccid Nummer?

Wie kann ich meine SIM

Ist die Rufnummer auf der SIM