International Mobile Subscriber Identity
The International Mobile Subscriber Identity ( IMSI , German International Mobile Subscriber Identity ) is used in GSM - UMTS - and LTE - mobile networks to uniquely identify the network subscriber (internal subscriber identity). In addition to other data, the IMSI is stored on a special chip card , the SIM (Subscriber Identity Module). The IMSI number is assigned once per SIM worldwide by the mobile network operators. The IMSI has nothing to do with the telephone number assigned to the SIM card.
construction
The IMSI consists of a maximum of 15 digits and is composed as follows:
- Mobile Country Code (MCC), 3 digits
- Mobile Network Code (MNC), 2 or 3 digits
- Mobile Subscriber Identification Number (MSIN), 1-10 digits
Examples of an IMSI:
- 262 01 9876543210
- MCC 262 for Germany, MNC 01 for T-Mobile, MSIN 9876543210 for the subscriber.
- 262 02 9745642210
- MCC 262 for Germany, MNC 02 for Vodafone D2, MSIN 9745642210 for the subscriber.
- 310 240 974564247
- MCC 310 for USA, MNC 240 for Voicestream, MSIN 974564247 for the subscriber.
- 262 07 9745642247
- MCC 262 for Germany, MNC 07 for O 2 , MSIN 9745642247 for the participant.
Situation in Germany
In Germany , IMSIs are allocated in blocks by the Federal Network Agency , with an IMSI block being formed by a unique combination of MCC and MNC. So far, the following IMSI blocks have been allocated:
| IMSI block | Users |
|---|---|
| 262 01 | Telekom Germany GmbH |
| 262 02 | Vodafone GmbH |
| 262 03 | E-Plus Mobilfunk GmbH & Co. KG |
| 262 04 | Vodafone GmbH |
| 262 05 | E-Plus Mobilfunk GmbH & Co. KG |
| 262 06 | Telekom Germany GmbH |
| 262 07 | Telefónica Germany GmbH & Co. oHG |
| 262 08 | Telefónica Germany GmbH & Co. oHG |
| 262 09 | Vodafone GmbH |
| 262 10 | DB Netz AG |
| 262 11 | Telefónica Germany GmbH & Co. oHG |
| 262 12 | E-Plus Mobilfunk GmbH & Co. KG |
| 262 15 | Airdata AG |
| 262 16 | E-Plus Mobilfunk GmbH & Co. KG |
| 262 17 | E-Plus Mobilfunk GmbH & Co. KG |
| 262 18 | NetCologne Ges. F. Telekommunikation mbH |
| 262 19 | inquam Germany GmbH |
| 262 20 | E-Plus Mobilfunk GmbH & Co. KG |
| 262 21 | Multiconnect GmbH |
| 262 22 | sipgate Wireless GmbH |
| 262 23 | Drillisch Netz AG |
| 262 24 | TelcoVillage GmbH |
| 262 42 | Vodafone GmbH |
| 262 43 | Vodafone GmbH |
| 262 71 | GSMK , Society for Secure Mobile Communication Ltd. |
| 262 72 | Ericsson GmbH |
| 262 73 | Nokia Solutions and Networks GmbH & Co. KG |
| 262 75 | Core Network Dynamics GmbH |
| 262 77 | E-Plus Mobilfunk GmbH & Co. KG |
| 262 78 | Telekom Germany GmbH |
IMSI in Austria
In Austria , the Rundfunk- und Telekom Regulierungs-GmbH is responsible for the award.
| IMSI block | Users |
|---|---|
| 232 01 | A1 Telekom Austria AG |
| 232 02 | A1 Telekom Austria AG |
| 232 03 | T-Mobile Austria GmbH |
| 232 05 | Hutchison Drei Austria GmbH |
| 232 07 | T-Mobile Austria GmbH |
| 232 08 | Lycamobile Austria Ltd |
| 232 09 | A1 Telekom Austria AG |
| 232 10 | Hutchison Drei Austria GmbH |
| 232 11 | A1 Telekom Austria AG |
| 232 12 | A1 Telekom Austria AG |
| 232 13 | UPC Austria Services GmbH |
| 232 14 | Hutchison Drei Austria GmbH |
| 232 15 | Mundio mobile (Austria) Limited |
| 232 16 | Hutchison Drei Austria GmbH |
| 232 17 | MASS Response Service GmbH |
| 232 91 | ÖBB-Infrastruktur AG |
IMSI in Switzerland
In Switzerland , the Federal Office of Communications ( OFCOM) is responsible for the award.
See cellular code .
See also
- IMSI catcher for eavesdropping on cell phone customers
- IMEI to identify the end device
- TMSI (Temporary Mobile Subscriber Identity)
- MSISDN
- Stealth Ping - also Silent SMS or Silent SMS to locate cell phones or to create movement profiles
Individual evidence
- ↑ 3GPP TS 23.003: Numbering, addressing and identification; Cape. 2: Identification of mobile subscribers ( English , ZIP / DOC; 283 KB) on September 29, 2009. Retrieved on December 3 in 2009.
- ↑ International IDs for Mobile Subscribers (IMSI), allocated blocks, as of February 1, 2019 ( German , PDF) February 1, 2019. Accessed October 8, 2019.
-
↑ List of assigned special communication parameters ( German ,
- 22 KB) Archived from the original on March 2, 2014. Retrieved on March 23, 2014.