What is ICCID?

ICCID – SIM serial number – is printed on the SIM card with carrier logo. Each SIM card contains its unique ICCID. It is used to identify with the network operator when the device registers for use. A full ICCID number is 19 to 22 characters.

How ICCID checker work

ICCID can be divided into 3 parts: IIN (Issuer Identifier Number), AIN (Account Identification Number) and Checksum.

IIN (Issuer Identifier Number) – The IIN part can be further divided into 3 sub-parts: MII (Major Industry Identifier), International Calling Code, and Issuer Identifier.

The MII is a fixed value of 89 controlled by the ISO 7812 standard for “Telecommunications administrations and private operating agencies”).

The International Calling Code is 1- to 3-digit long controlled by the ITU-T E.118 standard. For example, 1 = North America, 01 = United states, 61 = Australia, 86 = China, 354 = Iceland, etc.

Issuer Identifier is 1- to 4-digit long controlled by the ITU-T E.118 standard. For example, AAPT = 14, EZI-PhoneCard = 88, Hutchison = 06, Optus = 02/12/21/23, Telstra = 01, Telstra Business = 00/61/62, Vodafone = 03, etc.

AIN (Account Identification Number) – The AIN part can also be further divided into several sub-parts decided by the issuer. For example, Airtel from India may divide the AIN into 3 sub-parts:

4 digits to represent Month and Year (in MMYY format) when the SIM card (which carries the ICCID) was manufactured.
2 digits to represent the switch configuration code.
6 digits to represent the account number of the service subscriber.
Checksum – The Checksum is a 1-digit long calculated from all other digits in the ICCID using the Luhn algorithm.

For example, this ICCID = 8991101200003204514 provides the following details:

The first two digits 89 refers to “Telecommunications” as the MII
The next two digits 91 refers to the country code of India.
The next two digits 10 refers to the issuer of Airtel.
The next four digits 1200 refers to December of 2000, when the carrying SIM was manufactured.
The next two digits 00 refers to the switch configuration code.
The next six digits 320451 refers to the account number of the subscriber.
The next one digit 4 refers to the checksum.
On a iPhone, you can find the ICCID by going to the “Settings > General > About” screen.

How do I get the ICCID code for iPhone Lock?

To get the latest ICCID code : https://beta.unlockcode.mobi

Source: fyicenter.com