NTT DoCoMo

NTT DoCoMo is Japan's largest wireless network carrier. They offer 2G PDC service and were the first in the world to offer 3G service with their WCDMA based FOMA network. The company is the developer and licensor of the i-mode internet browsing system for mobile phones.

Nokia

Based in Espoo, Finland, Nokia is the world's largest manufacturer of mobile phones. Nokia focuses on UMTS and GSM handsets and produces relatively few CDMA handsets. At one time the company had agreed to spin off its CDMA business into a joint venture with Japan's Sanyo, a major manufacturer of CDMA handsets, in order to strengthen its position in the North American market. That deal eventually fell through. Currently Nokia rebadges some phone models produced by Korea's Pantech as Nokia devices for Verizon Wireless in the United States.