SUNAB, Svenska UMTS-nät AB, is a company jointly owned by Tele2 Sverige AB
Tele2 AB is a major European telecommunications operator, with about 34 million customers in 11 countries. It serves as a fixed-line telephone operator, cable television provider, mobile phone operator and Internet service provider.- Overview :...

 and TeliaSonera AB
TeliaSonera AB is the dominant telephone company and mobile network operator in Sweden and Finland. The company has operations in other countries in Northern, Eastern Europe, Central Asia and Spain, with a total of 150 million mobile customers...

for the purpose of building, owning and operating a 3G network for the parent companies. SUNAB was formed in 2002.

The joint network operated by SUNAB is the largest 3G network in Sweden, both by coverage and customer base.
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