The number of internet users in China increased to an estimated 420 million at the end of June 2010, according to industry association China Internet Network Information Center (CNNIC). The number of users was up by 9.4% compared to the start of the year. Of the total, 363.81 million (or 86.6%) used broadband fixed line access modes, while 276.78 million (65.9%) used mobile handsets. The average time spend surfing the world wide web was 19.8 hours per week. CNNIC said that there were 250.452 million IP addresses, 11.206 million domain names and 2.787 million websites in China at the end of June. At the same date China had a total bandwidth of 998.217Gbps for international internet connections, with China Telecom responsible for 616.703Gbps, China Unicom 330.599Gbps, China Mobile 30.559Gbps, CSTNet 10.422Gbps and CERNET 9.932Gbps.