The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard. Developed and maintained by the 3GPP, UMTS is a component of the International Telecommunication Union IMT-2000 standard set and compares with the CDMA2000 standard set for networks based on the competing cdmaOne technology. UMTS uses wideband code-division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators.
Cellular One is the trademarked brand name that licenses services used by several cellular service providers in the United States. The brand was sold to Trilogy Partners by AT&T in 2008 shortly after AT&T had completed its acquisition of Dobson Communications. Cellular One was originally the trade name of one of the first mobile telephone service providers.
TracFone Wireless, Inc. (TFWI) is an American prepaid, no-contract mobile phone provider. TFWI is a subsidiary of Verizon Communications, and offers products and services under several brands. It operates as a mobile virtual network operator (MVNO), holding agreements with the three largest United States wireless network operators to provide service: AT&T Mobility, T-Mobile US, and Verizon.
United States Cellular Corporation is an American mobile network operator. It is a subsidiary of Telephone and Data Systems Inc.. The company was formed in 1983 and is headquartered in Chicago, Illinois. UScellular is the fifth-largest wireless carrier in the United States, with 4,656,000 subscribers in 426 markets in 21 states as of the 2nd quarter of 2023. The organization was previously known as U.S. Cellular.
Sprint Corporation was an American telecommunications company. Before being acquired by T-Mobile US on April 1, 2020, it was the fourth-largest mobile network operator in the United States, serving 54.3 million customers as of June 30, 2019. The company also offered wireless voice, messaging, and broadband services through its various subsidiaries under the Boost Mobile and Open Mobile brands and wholesale access to its wireless networks to mobile virtual network operators.
Radio Móvil Dipsa S.A.U., doing business as Telcel, is a Mexican wireless telecommunications company, owned by América Móvil, founded in 1984 and based in Mexico City. Telcel holds concessions to operate a wireless network in all nine geographic regions in Mexico using both the 850 megahertz and 1900 megahertz radio spectrum.
Claro Company, known as Claro Mexico or simply Claro, is a Mexican company part of América Móvil, a Mexican telecom group. Claro serves clients in Argentina, Brazil, Chile, Colombia, Costa Rica, the Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Nicaragua, Panama, Paraguay, Peru, Puerto Rico and Uruguay. The company's name means "bright," "clear," and also "of course," in both Portuguese and Spanish.
América Móvil, S.A.B. de C.V. is a Mexican telecommunications corporation headquartered in Mexico City, Mexico. It is the 7th largest mobile network operator in the world in terms of equity subscribers, as well as 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.
Centennial Communications and its subsidiaries provided wireless and broadband telecommunications services to wireless telephone subscribers in the United States, Puerto Rico, and the U.S. Virgin Islands. On March 13, 2007, Centennial Communications completed the sale of Centennial Dominicana to Trilogy International Partners for approximately $80 million in cash.
Claro is the largest telecommunications company in the Dominican Republic and provides local, long-distance, and wireless voice services, as well as Internet and IPTV services, to approximately four million customers.
Advanced Wireless Services (AWS) is a wireless telecommunications spectrum band used for mobile voice and data services, video, and messaging. AWS is used in the United States, Argentina, Canada, Colombia, Mexico, Chile, Paraguay, Peru, Ecuador, Trinidad and Tobago, Uruguay and Venezuela. It replaces some of the spectrum formerly allocated to Multipoint Multichannel Distribution Service (MMDS), sometimes referred to as Wireless Cable, that existed from 2150 to 2162 MHz.
Hutchison 3G Enterprises S.A.R.L., trading as 3 (Three) and Hutchison 3G, is the owner of several originally UMTS-based mobile phone networks and broadband Internet providers, which operate in Hong Kong, Macau, Austria, Denmark, Indonesia, Ireland, Italy, Sweden, and the United Kingdom.
MagtiCom, Ltd. is a Georgian telecoms company founded on February 12, 1996 by Dr. George (Gia) Jokhtaberidze. On September 22, 1997, the Company made the first commercial call from its mobile network. The services offered by MagtiCom involve as follows: mobile telephony; mobile internet ; Cable fixed telephony (VoIP); internet television (IPTV) and fiber-optic internet. Since 2016 MagtiCom started to provide IPTV, VoIP and fiber-optic internet.
Open Mobile was a mobile network operator that offers mobile phone services exclusively in Puerto Rico. The company was established on June 12, 2007, as a relaunch of NewComm Wireless Services. Its new owners, M/C Partners and Columbia Capital, acquired Movistar's assets for $160 million USD after Movistar filed for Chapter 11 bankruptcy protection in December 2006.
Huawei SingleRAN is a radio access network (RAN) technology offered by Huawei that allows mobile telecommunications operators to support multiple mobile communications standards and wireless telephone services on a single network. The technology incorporates a software-defined radio device, and is designed with a consolidated set of hardware components, allowing operators to purchase, operate and maintain a single telecommunications network and set of equipment, while supporting multiple mobile communications standards.
3G mobile telephony was relatively slow to be adopted globally. In some instances, 3G networks do not use the same radio frequencies as 2G so mobile operators must build entirely new networks and license entirely new frequencies, especially so to achieve high data transmission rates. Other delays were due to the expenses of upgrading transmission hardware, especially for UMTS, whose deployment required the replacement of most broadcast towers. Due to these issues and difficulties with deployment, many carriers delayed acquisition of these updated capabilities.
Voice over LTE (VoLTE) is an LTE high-speed wireless communication standard for voice calls using mobile phones and data terminals. VoLTE has up to three times more voice and data capacity than older 3G UMTS and up to six times more than 2G GSM. It uses less bandwidth because VoLTE's packet headers are smaller than those of unoptimized VoIP/LTE. VoLTE calls are usually charged at the same rate as other calls.
This list contains the mobile country codes and mobile network codes for networks with country codes between 300 and 399, inclusively – a region that covers North America and the Caribbean. Guam and the Northern Mariana Islands are included in this region as parts of the United States.
