Oi S.A.

Oi S.A. is a prominent Brazilian telecommunications provider, holding a concession for switched fixed-line telephony services across the nation. The company delivers a comprehensive suite of communication solutions, encompassing traditional landline voice calls, data services, and pay-TV. Its extensive portfolio includes local, intraregional, domestic, and international long-distance carrier services, alongside mobile telecommunications and bespoke corporate offerings. Additionally, Oi S.A. provides crucial support like maintenance and repair, and operates call center and telemarketing operations. Further diversifying its offerings, it supplies internet access, network infrastructure, Wi-Fi services, and even financial, payment, and credit system solutions. Beyond its core telecom activities, the company also manages investments and procures capital from global markets. It caters to a broad customer base, serving residential users, subscription and prepaid mobile clients, mobile broadband subscribers, and enterprises ranging from small businesses to large corporations. Established in 1998 and headquartered in Rio de Janeiro, Brazil, the company adopted the name Oi S.A. in February 2012, having previously operated as Brasil Telecom S.A. On June 20, 2016, Oi S.A., along with its subsidiaries, initiated bankruptcy proceedings.