Claro Brasil

Claro Brazil Logo


Company Name

Claro SA

Ownership Type


Ownership/Controlling Entity



3G UMTS Frequency Bands

Company Overview

Claro SA, trading as Claro, was launched in 2003 following a merger between América Móvil-owned operators ATL, BCP, Americel, Tess Celular, and Claro Digital who previously served mutually exclusive regions, to form a single nationwide mobile carrier. The company is a fully owned subsidiary of Claro Telecom Participações SA, a group holding company designed to oversee operations of its Brazilian cellular, fixed, and ISP service companies. Claro Telecom itself is a subsidiary of América Móvil S.A.B. de C.V, an international telecommunications group with operations in a range of countries throughout South America.

Claro operates standard 2G GSM services over 900 and 1800 MHz, and 3G UMTS over B1 (2100 MHz) and B5 (850 MHz) since November 2007. The company initially launched 4G LTE services over B7 (2600 MHz) in April 2013, following with B3 (1800 MHz) in 2015. After government regulator Anatel auctioned 700 MHz spectrum in August 2014, the company began testing of 3C LTE-A combining new B28 (700 MHz) LTE with its existing B3 and B7 services. LTE-A was launched in June 2016, with further upgrades over 2017 to provide 4X4 MIMO and 256QAM operation in "4.5G" areas. The company also operates a B31 (450 MHz) network to provide LTE coverage in rural areas.

Claro IoT

Claro has expressed intentions to deploy eMTC and NB-IoT as its preferred IoT technology types, and began live trials in October 2017. In February 2019 the company announced it will launch both NB-IoT and LTE-M networks commercially in April. Claro is aiming for complete nationwide LTE-M/NB-IoT coverage by the end of the year.

3G UMTS Network Information

Details on UMTS network deployments are shown below. Data are often incomplete due to commercial nature. Consult dossier text for further details.

Launch Date 2007-11 Status Active
UMTS BandPacket DataStatus
4G LTE Network Information

Details on LTE network deployments are shown below. Data are often incomplete due to commercial nature. Consult dossier text for further details.

Evolution Status Active [Launched 2012-12]
Max. MIMO Max. Modulation
Carrier Aggregation Features
LTE BandChannel WidthStatus
No Data Active
20 MHz Active
10 MHz Active
5 MHz Active
IoT Network - eMTC (LTE Cat-M1)
Technology Status Trialling
Band - Launch Date -
IoT Network - NB-IoT (LTE Cat-NB1)
Technology Status Trialling
Band Launch Date -

Services Available

As specialists in 3G, 4G, and 5G cellular technologies, our R-Spectrum team provides in-country technical services to most regions around the world. Operating on a contract basis we are often sent to remote and isolated regions to assist companies in establishing voice and data communications.

Through our R-Spectrum team, we help our clients visualise and understand mobile signal issues by offering a range of radio frequency modelling services for 2G GSM, 3G UMTS, 4G LTE, and 5G NR cellular technologies. The first step to solving any problem is to understand the problem.