USIM
E593242
USIM (Universal Subscriber Identity Module) is a smart card application used in 3G and later mobile networks to securely store subscriber credentials and enable authentication and access to network services.
All labels observed (6)
| Label | Occurrences |
|---|---|
| USIM canonical | 15 |
| Universal Subscriber Identity Module | 3 |
| USIM application on UICC | 2 |
| USIM Application Toolkit | 1 |
| USIM cards | 1 |
| Universal Subscriber Identity Module (USIM) Application Toolkit (USAT) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6418174 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: USIM Context triple: [3GPP TS 31-series, focusesOn, USIM]
-
A.
iSIM
iSIM is an integrated SIM technology that embeds subscriber identity functionality directly into a device’s main chipset, offering a more compact and power-efficient alternative to traditional SIM and eSIM solutions.
-
B.
eSIM
eSIM is an embedded, programmable SIM technology built into devices that lets users activate and switch mobile carriers digitally without needing a physical SIM card.
-
C.
SIM31
SIM31 is an express bus route in New York City that provides commuter service between Staten Island and Manhattan.
-
D.
SIM4C
SIM4C is an express bus route in New York City that provides commuter service between Staten Island and Manhattan.
-
E.
UMTS
UMTS is a third-generation (3G) mobile telecommunications system that provides higher-speed voice and data services over cellular networks.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: USIM Target entity description: USIM (Universal Subscriber Identity Module) is a smart card application used in 3G and later mobile networks to securely store subscriber credentials and enable authentication and access to network services.
-
A.
iSIM
iSIM is an integrated SIM technology that embeds subscriber identity functionality directly into a device’s main chipset, offering a more compact and power-efficient alternative to traditional SIM and eSIM solutions.
-
B.
eSIM
eSIM is an embedded, programmable SIM technology built into devices that lets users activate and switch mobile carriers digitally without needing a physical SIM card.
-
C.
SIM31
SIM31 is an express bus route in New York City that provides commuter service between Staten Island and Manhattan.
-
D.
SIM4C
SIM4C is an express bus route in New York City that provides commuter service between Staten Island and Manhattan.
-
E.
UMTS
UMTS is a third-generation (3G) mobile telecommunications system that provides higher-speed voice and data services over cellular networks.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
smart card application
ⓘ
subscriber identity module application ⓘ |
| associatedWith | 3GPP AKA protocol ⓘ |
| backwardCompatibleWith | GSM networks when combined with SIM application ⓘ |
| category |
mobile telecommunications security
ⓘ
subscriber identity modules ⓘ |
| compatibleWith | UICC multi-application environment ⓘ |
| contains |
elementary files for subscriber data
ⓘ
file structure defined by 3GPP ⓘ |
| definedBy | 3GPP specifications ⓘ |
| enables |
access to network services
ⓘ
roaming authentication ⓘ secure access to value-added services ⓘ subscriber authentication ⓘ |
| fullName |
Universal Subscriber Identity Module
ⓘ
linked to:
USIM
|
| interactsVia |
ISO/IEC 7816 interface
ⓘ
linked to:
ISO/IEC 7816
|
| interactsWith | mobile equipment ⓘ |
| managedBy | mobile network operator ⓘ |
| provides | enhanced security compared to GSM SIM ⓘ |
| relatedTo |
ISIM
ⓘ
SIM ⓘ UICC ⓘ |
| replaces | GSM SIM in 3G networks ⓘ |
| runsOn | UICC ⓘ |
| securityProperty |
resists cloning better than classic SIM
ⓘ
supports stronger authentication algorithms ⓘ |
| standardizedIn | 3GPP TS 31.102 ⓘ |
| stores |
IMSI
ⓘ
authentication keys ⓘ subscriber credentials ⓘ subscriber identity ⓘ |
| supports |
AKA authentication and key agreement
ⓘ
USIM application toolkit ⓘ longer authentication keys than GSM SIM ⓘ multiple subscriber profiles ⓘ mutual authentication ⓘ service parameters for circuit-switched services ⓘ service parameters for packet-switched data ⓘ |
| usedFor |
cipher key derivation
ⓘ
generation of authentication responses ⓘ integrity key derivation ⓘ secure storage of subscriber data ⓘ |
| usedIn |
3G mobile networks
ⓘ
4G mobile networks ⓘ 5G mobile networks ⓘ LTE networks ⓘ NR networks ⓘ UMTS networks ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: USIM Description of subject: USIM (Universal Subscriber Identity Module) is a smart card application used in 3G and later mobile networks to securely store subscriber credentials and enable authentication and access to network services.
Referenced by (23)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: USIM
linked to: USIM
linked to: USIM
linked to: USIM
linked to: USIM
linked to: USIM
linked to: USIM