Table 3 the Number of IPv6 Addresses in Different Regions of China Region Number of Addresses Mainland China 21,188 blocks/32 Taiwan 2,359 blocks/32 Hong Kong SAR 283 blocks/32 Macau SAR 5 blocks/32 Table 4 IPv6 Address Allocation in Mainland China Note 1 Organization name The Number of IPv6 Addresses (/32 ) Note 2 CNNIC IP Address Allocation Alliance 6,450 China Telecom 4,099 China United Network Communications Corporation 4,097 China Mobile Communications Corporation 4,097 Note 3 China Tietong Telecommunications Corporation. 2,049 China Education and Research Network 18 Note 4 China Science and Technology Network 17 Others 361 Data sources: APNIC and CNNIC Note 1: /32 as shown in the IPv6 address allocation table is a method to present IPv6 addresses, (128-32) 96 and the corresponding number of addresses is 2 =2 . Note 2: At present, the total IPv6 addresses held by the members of IP Address Assignment Alliance of CNNIC are 7,921/32. The IPv6 addresses held by the members of IP Address Assignment Alliance listed in the above table do not include those IPv6 addresses already assigned to China Tietong and CSTNET. Note 3: The IPv6 addresses of China Tietong Telecommunications Corporation are assigned by CNNIC; Note 4: The IPv6 addresses of CSTNET are assigned by CNNIC; Note 5: The deadline for the above statistical data is December 31, 2016. 120 The 39th Statistical Report on Internet Development in China