Top 10 SIM card Telecom companies in the world that are in charge of creating sim cards.
SIM Cards Review ?
A SIM Card, also known as subscriber identity module or subscriber identification module (SIM), is an integrated circuit running a card operating system (COS) that is intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices (such as mobile phones and computers).
It is also possible to store contact information on many SIM cards. SIM cards are always used on GSM phones; for CDMA phones, they are needed only for LTE-capable handsets. SIM cards can also be used in satellite phones, smart watches, computers, or cameras.
A SIM card contains a unique serial number (ICCID), international mobile subscriber identity (IMSI) number, security authentication and ciphering information, temporary information related to the local network, a list of the services the user has access to, and two passwords: a personal identification number (PIN) for ordinary use, and a personal unblocking key (PUK) for PIN unlocking. In Europe, the serial SIM number (SSN) is also sometimes accompanied by an international article number (IAN) or a European article number (EAN) required when registering online for the subscription of a prepaid card.
Top 10 SIM Cards Telecom Companies
• Bharti Airtel Limited
Bharti Airtel Limited, also known as Airtel, is an Indian multinational telecommunications services company based in New Delhi, India.
It operates in 18 countries across South Asia and Africa, as well as the Channel Islands. Airtel provides 2G, 4G LTE, 4G+ mobile services, fixed line broadband and voice services depending upon the country of operation.
Airtel had also rolled out its VoLTE technology across all Indian telecom circles. It is the second largest mobile network operator in India and the third largest mobile network operator in the world.
Airtel was named India’s 2nd most valuable brand in the first ever Brandz ranking by Millward Brown and WPP plc.
• Vodafone
Vodafone Group Plc (/ˈvoʊdəfoʊn/) is a British multinational telecommunications company. Its registered office and global headquarters are in Newbury, Berkshire, England. It predominantly operates services in Asia, Africa, Europe, and Oceania.
As of November 2020, Vodafone owns and operates networks in 22 countries, with partner networks in 48 further countries.
Its Vodafone Global Enterprise division provides telecommunications and IT services to corporate clients in 150 countries.
Vodafone has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. The company has a secondary listing on Nasdaq.
• T – Mobile Telecom
T-Mobile is the brand name used by the mobile communications subsidiaries of the German telecommunications company Deutsche Telekom AG.
The brand is also active in the Czech Republic (T-Mobile Czech Republic), the Netherlands (T-Mobile Netherlands), Poland (T-Mobile Polska), and the United States (T-Mobile US).
• BSNL Telecom
Bharat Sanchar Nigam Limited (d/b/a BSNL) is a government owned telecommunications service provider headquartered in New Delhi, India.
It is under the ownership of Department of Telecommunications, Ministry of Communications, Government of India. It was incorporated on 01 October 2000 by the Government of India. Its top official is designated as Chairman and Managing Director who is a central government civil servant of the Indian Communication Finance Service cadre or a central government engineer of the Indian Telecommunications Service cadre.
It provides total telecom services such as mobile voice and internet services through its nationwide telecommunications network across India. It is the largest government-owned-wireless telecommunications service provider in India.
• Consumer Cellular
Consumer Cellular is an American postpaid mobile virtual network operator founded by John Marick and Greg Pryor in October 1995.
The company offers cellphones, no-contract cellphone plans, and accessories with a focus on users age 50-plus. Including its corporate headquarters in Portland, Oregon, Consumer Cellular is completely U.S. based, employing more than 2,400 people at three additional locations in Phoenix, Arizona, and a support center in Redmond, Oregon.
• Tata Docomo
Tata Docomo was an Indian mobile network operator, a wholly owned subsidiary of Tata Teleservices.
In October, 2017 Bharti Airtel announced merger deal with Tata Teleservices and acquisition of Tata Docomo.
As of 21 July 2019, all Tata Docomo users are merged with Airtel network and provided with all the Airtel services.
The consumer mobile businesses of Tata Docomo, Tata Teleservices (TTSL) and Tata Teleservices Maharashtra Limited (TTML) have been merged into Bharti Airtel from 1 July 2019.
• Aircel Limited
Aircel Ltd. was an Indian mobile network operator headquartered in Mumbai that offered voice and 2G and 3G data services. Maxis Communications held a 74% stake and Sindya Securities and Investments held the remaining 26%.
Aircel was founded by Chinnakannan Sivasankaran and commenced operations in Tamil Nadu in 1999.
OIt was once a market leader in Tamil Nadu and had considerable presence in Odisha, Assam and North-East telecom circles. 2G and 3G Services including voice were shut down in all circles due to failure in merge with Reliance Communications.
• Jio Infocomm Limited
Reliance Jio Infocomm Limited, doing business as Jio, is an Indian telecommunications company and a subsidiary of Jio Platforms, headquartered in Mumbai, Maharashtra, India.
It operates a national LTE network with coverage across all 22 telecom circles. It does not offer 2G or 3G service, and instead uses only voice over LTE to provide voice service on its 4G network.
• Etisalat Telecom
Etisalat communications”), is a Emirati-based multinational telecommunications services provider, currently operating in 16 countries across Asia, the Middle East and Africa.
It is the 18th largest mobile network operator in the world by number of subscribers. It is the only net provider in UAE.
Etisalat was named the most powerful company in the United Arab Emirates by Forbes Middle East in 2012. In December 2020, Etisalat claimed the world’s fastest 5G download speed at 9.1 Gigabits per second, a network which it has started rolling out in Dubai since 2017.
Etisalat is one of the Internet hubs in the Middle East (AS8966), providing connectivity to other telecommunications operators in the region.
It is also the largest carrier of international voice traffic in the Middle East and Africa and the 12th largest voice carrier in the world.
As of October 2008, Etisalat has 510 roaming agreements covering 186 countries and enabling BlackBerry, 3G, GPRS and voice roaming.
• MTN Group Telecom
MTN Group Limited, formerly M-Cell, is a South African multinational mobile telecommunications company, operating in many African and Asian countries. Its head office is in Johannesburg.
As of December 2020, MTN recorded 280 million subscribers, making it the 8th largest mobile network operator in the world, and the largest in Africa.
Active in over 20 countries, one-third of the company’s revenue comes from Nigeria, where it holds about 35% market share.
• Singtel
Singapore Telecommunications Limited, commonly known as Singtel and stylised as SingTel, is a Singaporean telecommunications conglomerate and one of the four major telcos operating in the country.
The company is the largest mobile network operator in Singapore with 4.1 million subscribers and through subsidiaries, has a combined mobile subscriber base of 640 million customers at the end of financial year 2017.
The company was known as Telecommunications Equipment until 1995. Singtel provides ISP, IPTV (Singtel TV) and mobile phone networks and fixed line telephony services.
• Globacom
Globacom Limited, commonly known as Glo, is a Nigerian multinational telecommunications company founded on 29 August 2003 by Mike Adenuga. As of June 2018, the company employs more than 3,500 people worldwide.
• Orange S.A
Orange S.A. (French pronunciation: [ɔʁɑ̃ʒ ɛs ɑ]), rebranded as Orange, formerly France Télécom S.A., stylized as france telecom, is a French multinational telecommunications corporation.
It has 266 million customers worldwide and employs 89,000 people in France, and 59,000 elsewhere.
It is the 11th largest mobile network operator in the world and the 4th largest in Europe after Vodafone,Telefónica, Deutsche Telekom. In 2015, the group had revenue of €40 billion. The company’s head office is located in the 15th arrondissement of Paris.
• Telia Company
Telia Company AB is a Swedish multinational telecommunications company and mobile network operator present in Sweden, Finland, Norway, Denmark, Lithuania, Latvia and Estonia.
Telia also owns TV4 Media which includes TV4 in Sweden and MTV in Finland and C More Entertainment after acquiring them in 2019.
The company is headquartered in Stockholm and its stock is traded on the Stockholm Stock Exchange and on the Helsinki Stock Exchange.
• AT&T
AT&T Inc. (originally the American Telephone and Telegraph Company) is an American multinational conglomerate holding company that is Delaware-registered but headquartered at Whitacre Tower in Downtown Dallas, Texas.
It is the world’s largest telecommunications company and the largest provider of mobile telephone services in the U.S. As of 2020,
AT&T was ranked 9th on the Fortune 500 rankings of the largest United States corporations, with revenues of $181 billion.
• Verizon
Verizon Communications Inc., commonly known as Verizon, is an American multinational telecommunications conglomerate and a corporate component of the Dow Jones Industrial Average.
The company is headquartered at 1095 Avenue of the Americas in Midtown Manhattan, New York City, but is incorporated in Delaware.
• Telenor
It is one of the world’s largest mobile telecommunications companies with operations worldwide, but focused in Scandinavia and Asia.
It has extensive broadband and TV distribution operations in four Nordic countries, and a 10-year-old research and business line for Machine-to-Machine technology. Telenor owns networks in 8 countries.
• Charter Communication
Charter Communications, Inc., is an American telecommunications and mass media company with services branded as Spectrum.
With over 26 million customers in 41 states, it is the second-largest cable operator in the United States by subscribers, just behind Comcast, and third-largest pay TV operator behind Comcast and AT&T.
Charter is the fifth-largest telephone provider based on number of residential lines.
• American Movil
América Móvil is a Mexican telecommunications corporation headquartered in Mexico City, Mexico.
It is the 7th largest mobile network operator in terms of equity subscribers and one of the largest corporations in the world.
América Móvil is a Forbes Global 2000 company. As of Q1, 2019, América Móvil had 277.4 million wireless subscribers, and 84.3 million fixed revenue generating units (“RGUs”, consisting of fixed voice, fixed data and Pay TV units).
• BT Group
BT Group plc (trading as BT and formerly British Telecom) is a British multinational telecommunications holding company headquartered in London, England.
It has operations in around 180 countries and is the largest provider of fixed-line, broadband and mobile services in the UK, and also provides subscription television and IT services.
• Telkcom Indonesia
PT Telkom Indonesia (Persero) Tbk, also simply known as Telkom, is an Indonesian multinational telecommunications conglomerate.[3] Telkom is listed on the Indonesia Stock Exchange and has a secondary listing on the New York Stock Exchange. The government of Indonesia owns over half of Telkom’s shares outstanding.
• Telus Communication
Telus Communications Inc. (TCI) is the wholly owned principal subsidiary of Telus Corporation, a Canadian national telecommunications company that provides a wide range of telecommunications products and services including internet access, voice, entertainment, healthcare, video, and IPTV television.
The company is based in the Vancouver, British Columbia, area; it was originally based in Edmonton, Alberta, before its merger with BC Tel in 1999. Telus’ wireless division, Telus Mobility, offers HSPA+, and LTE-based mobile phone networks.
• Telia Jorge
Telia Norge AS, formerly NetCom AS, is a Norwegian mobile phone operator. Founded in 1993, it is the second largest mobile phone operator in Norway. The company has about 1.641 million subscribers (April 2013), and the company headquarters are located in Nydalen in Oslo.
It is owned by the Swedish company Telia Company. The Telia office in Trondheim consists mainly of sales, customer service and technical departments.
Telia was for a while the exclusive carrier for iPhone (iPhone 3G) in Norway, until Telenor signed an agreement with Apple Inc to also distribute the device in Scandinavia.
