1. Specifications
2. Information regarding the barcodes printed on the emnify IoT eSIM cards
3. Storage guidelines
4. What is eID
5. Why do all the ICCID start with 8988303?

emnify IoT eSIM card comes with different standard sizes or forms: 

• For removable SIM, Form Factor are from 2FF (Mini-SIM) to 4FF (nano-SIM) depending on the size of the eSIM
• For embedded SIM, Form Factor is MFF2

Below are the dimensions of each form factor:

• 2FF: 25mm x 15mm x 0.76mm – Mini
• 3FF: 15mm x 12mm x 0.76mm – Micro
• 4FF: 12.3mm × 8.8mm × 0.67mm – Nano
• MFF2 (eSIM): 5 x 6 x 0.75 mm, 8 pin

Please find below a visual description of the removable eSIM: 

EMnify emnify IoT eSIM Use-cases:

Use Case	DIM Commercial	DIM Industrial	Industrial MFF2
Illustration
Commercial	✓	✓
Industrial		✓	✓

It is possible to select industrial-grade eSIM. These are more robust to safeguard your device from corrosion, vibrations and other environmental factors, such as extreme temperature conditions.

Typically, industrial grade eUICC cards can withstand temperatures between -40°C and +105°C.

emnify IoT eSIM Specification

Information regarding the barcodes printed on the emnify IoT eSIM cards:

all emnify IoT cards (SIM/eSIM) come in the smaller frame format, cutting plastic production by 50 percent, born out of a conscious effort to reduce plastic production.

• BIC1 -  Batch Identification Code as text (e.g., #3OC-5ZMV-5QPY-2732)
• EID always is laser-engraved in full length of 32 digits, including the last two check digits, on the eSIM. This is valid for both:
  • Barcodes EIDs (Barcode-128)
  • Text value EIDs
• ICCID is always laser-engraved in full length of 20 digits, including the check digit, on the eSIM. This is valid for both:
  • Barcodes ICCID (Barcode-128)
  • Text value ICCID
• The ICCID is always laser-engraved in full length of 20 digits, including the check digit, on the eSIM plug in text value.
• PIN is laser-engraved on the eSIM body in text format only.
• MSISDN as text - 15-digit

Storage guidelines

As long as the eSIMs (any form factor) are stored in their original packaging, you can store the SIM cards for long periods of time (up to 1 year) under these conditions:

• Temperature: 25°C +/- 5°C
• Humidity: 40% - 60%

What is eID?

The eID is the eUICC identifier used in the context of Remote Provisioning and Management
of the eUICC. The central purpose of the eID is to uniquely identify an individual eUICC
(this is independent of the eUICC form factor).

The length of the EID shall be 32 digits. It is composed of the following parts (see Figure 1):

Why do all the ICCID start with 8988303?

Each eSIM profile is internationally identified by its integrated circuit card identifier (ICCID). ICCIDs are stored in the SIM cards and are also engraved or printed on the SIM card body during a process called personalisation. The number is up to 19 or 20 digits long, including a single check digit. Each ICCID is starting with and Issuer Identification Number (IIN).

If you are working with several vendors, the easiest method to identify eSIM cards belonging to EMnify is by using the first 7 digits of the ICCID: 8988303.