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SIM card: History, Standards & Art

A SIM card or SIM (subscriber identity module) is a type of integrated circuit, often in the form of a smart card. They are intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones, tablets, and…

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SIM card topic overview

The analysis highlights History, Standards and Art as prominent areas in the source structure around SIM card.

Related topics
114
Source areas
11
Connected nodes
125
Extracted relationships
248
Concept neighborhoods
42
Bridge connections
125

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 31 topics
History and procurement · 14 topics
Data · 13 topics
Formats · 10 topics
Security · 10 topics
SIM and carriers · 7 topics
Usage in mobile phone standards · 7 topics
Design · 6 topics
Developments · 6 topics
Multiple-SIM devices · 6 topics
Thin SIM · 4 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History and procurement

Design

Data

Formats

Security

Developments

Usage in mobile phone standards

SIM and carriers

Multiple-SIM devices

Thin SIM

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How SIM card connects Entity context

The extracted context around SIM card shows recurring relationship patterns in the source. For example, SIM card → Asia, Australia, By, Canada, Common, December, Denmark, Europe, Finland, GSM, Hong Kong, Many, Mexico, Mostly, MVNOs, On, Poland, SIM, SIM-only, The SIM Another extracted example is SIM card → All, GSM, ICCID, If, IMSI, KB, Ki, LAI, MCCs, MNCs, Mobile, Refer, SDN, Short Message, SIM, SMSC, SPN, The, The SIM, This. Use these groups to spot repeated connection types before inspecting the individual relationships.

SIM card

Top relations

related to SIM and carriers · 23
SIM card → Asia, Australia, By, Canada, Common, December, Denmark, Europe, Finland, GSM, Hong Kong, Many, Mexico, Mostly, MVNOs, On, Poland, SIM, SIM-only, The SIM
related to Data · 21
SIM card → All, GSM, ICCID, If, IMSI, KB, Ki, LAI, MCCs, MNCs, Mobile, Refer, SDN, Short Message, SIM, SMSC, SPN, The, The SIM, This
related to Security · 19
SIM card → BlackHat, DES, Further, GCHQ, Gemalto, Having, In, In February, In July, International Telecommunication Union, July, Karsten Nohl, Ki's, NSA, SIM, SRLabs, Thales DIS, The, The Intercept
related to Design · 18
SIM card → API, APIs, ETSI, ETSI TS, GlobalPlatform, ISO/IEC, Java Card, Modern, Modern SIM, RFID, SIM, SIM Application Toolkit, SIM-likes, The, There, These, To, TS
related to history · 16
SIM card → EEPROM, EPROM, ETSI, IC, MOS, SIM, Smart, The, The SIM, This, TS, UICC, UMTS, Universal Mobile Telecommunications System, USIM, With
related to International mobile subscriber identity (IMSI) · 15
SIM card → Canada, Digits, IMSI, IMSIs, MCC, MNC, MNCs, Mobile, MSIN, Normally, One MCC, SIM, The, Three-digit MNC, United States
related to Micro-SIM · 15
SIM card → ARIB, CDMA2000, ETSI, European Telecommunications Standards Institute, GlobalPlatform, GSM Association, GSMA SCaG, GSMNA, Liberty Alliance, OMA, Open Mobile Alliance, SCP, SIM, The, UTRAN/GERAN
see also · 15
SIM card → Apple SIMGSM, GSM, IMEI, IP Multimedia Services Identity, ISIM, MEID, Mobile, Mobile Equipment Identity, Module, SIM, SWP, TetheringTransponderGSM USSD, Unstructured Supplementary Service Data, Willcom-SIM, Wire Protocol
related to Multiple-SIM devices · 14
SIM card → Africa, BlackBerry KeyOne, Dual SIM, Dual-SIM, East Asia, Europe, Multiple SIM, SIM, SIMs, Some, South Asia, Southeast Asia, This, US
related to Authentication key (Ki) · 13
SIM card → AuC, Each SIM, GSM, In, Instead, Ki, Run GSM Algorithm, SIM, SIMs, The Ki, The SIM, This, USIM

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

sim card mobile cards network gsm number phone used use devices also operator identity networks subscriber code digits using phones

SIM card relationships Subject–Predicate–Object triples

TTTA extracted 248 structured relationships around SIM card. Examples in this analysis include SIM card → is a → type of smart card and SIM card → is a → R-UIM and the equivalent of the SIM application is the CSIM.A virtual SIM is a mobile phone number provided by a mobile network operator that does not require a SIM card to conn…. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
SIM cardis atype of smart card0.90text
SIM cardis aR-UIM and the equivalent of the SIM application is the CSIM.A virtual SIM is a mobile phone number provided by a mobile network operator that does not require a SIM card to conn…0.90text
flash memoryinstance ofalong with MOS memory technologies0.80text
EEPROMinstance ofalong with MOS memory technologies0.80text
the SMSCinstance ofThe SIM also stores other carrier-specific data0.80text
SMSinstance ofthe specifications were further developed and enhanced with functionality0.80text
GPRSinstance ofthe specifications were further developed and enhanced with functionality0.80text
in Africainstance ofMultiple SIM devices are commonplace in developing markets0.80text
East Asiainstance ofMultiple SIM devices are commonplace in developing markets0.80text
South Asiainstance ofMultiple SIM devices are commonplace in developing markets0.80text
Southeast Asiainstance ofMultiple SIM devices are commonplace in developing markets0.80text
where variable billing ratesinstance ofMultiple SIM devices are commonplace in developing markets0.80text

Related concept clusters Concept neighborhoods

The concept neighborhoods around SIM card bring nearby vocabulary together. In this analysis, examples include Sim, Cards and Network. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • SIM card
    • Sim
    • Cards
    • Network
    • Phone
    • Mobile
    • Networks
    • Gsm
    • Uicc
    • Also
    • Operator
    • Used
    • Use
  • sim card
    • Sim
    • Cards
    • Network
    • Mobile
    • Phone
    • International
    • Ki
    • Networks
    • Circuit
    • Integrated
    • Gsm
    • Equipment
  • integrated circuit
    • Circuit
    • Integrated
    • Smart
    • Uicc
    • Iccid
    • Subscriber
    • Identity
    • Contacts
    • Imsi
    • International
    • Security
    • Used
  • smart card
    • Sim
    • Subscriber
    • Mobile
    • Uicc
    • Network
    • Contacts
    • Phone
    • Etsi
    • International
    • Ki
    • Circuit
    • Integrated
  • international mobile subscriber identity
    • Subscriber
    • International
    • Imsi
    • Network
    • Equipment
    • Smart
    • Circuit
    • Iccid
    • Integrated
    • Security
    • Sim
    • Sim-only
  • mobile telephone
    • Network
    • Equipment
    • Sim
    • Sim-only
    • Phone
    • Operator
    • Subscriber
    • Number
    • Used
    • Code
    • Gsm
    • Digits
  • mobile phones
    • Network
    • Equipment
    • Sim
    • Used
    • Sim-only
    • Phone
    • Operator
    • Subscriber
    • Also
    • Number
    • Gsm
    • Code
  • personal identification number
    • Contacts
    • Iccid
    • Phone
    • Also
    • Ki
    • Subscriber
    • Sim
    • Operator
    • Network
    • Data
    • Phones
    • Digits

Connections between topic areas Semantic bridges

For SIM card, one of the stronger structural bridges in this analysis connects SIM card with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
SIM card — Overview · splits 94 ⟂ 32
SIM card — History and procurement · splits 111 ⟂ 15
SIM card — Data · splits 112 ⟂ 14
SIM card — Formats · splits 115 ⟂ 11
SIM card — Security · splits 115 ⟂ 11
SIM card — Usage in mobile phone standards · splits 118 ⟂ 8
SIM card — SIM and carriers · splits 118 ⟂ 8
SIM card — Design · splits 119 ⟂ 7
SIM card — Developments · splits 119 ⟂ 7
SIM card — Multiple-SIM devices · splits 119 ⟂ 7
SIM card — Thin SIM · splits 121 ⟂ 5

Map overview Semantic statistics

SIM card

Nodes126
Edges125
Triples248
Avg. degree1.98
Density0.015873
Components1

Source & methodology

TTTA analyzes the structure around SIM card to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Standards & Art, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — SIM card · EN edition · Analysis: TopicsToTalkAbout

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