| CIDR | IP地址开始 | IP地址结束 | IP地址数量 | 分配时间 | 注册机构 |
|---|---|---|---|---|---|
| 172.0.0.0/12 | 172.0.0.0 | 172.15.255.255 | 1,048,576 | 2012-08-20 | arin |
| 172.32.0.0/11 | 172.32.0.0 | 172.63.255.255 | 2,097,152 | 2012-09-18 | arin |
| 172.64.0.0/13 | 172.64.0.0 | 172.71.255.255 | 524,288 | 2015-02-25 | arin |
| 172.72.0.0/14 | 172.72.0.0 | 172.75.255.255 | 262,144 | 2015-04-06 | arin |
| 172.76.0.0/14 | 172.76.0.0 | 172.79.255.255 | 262,144 | 2015-04-02 | arin |
| 172.80.0.0/17 | 172.80.0.0 | 172.80.127.255 | 32,768 | 2015-05-06 | arin |
| 172.81.4.0/22 | 172.81.4.0 | 172.81.7.255 | 1,024 | 2021-05-03 | arin |
| 172.81.8.0/24 | 172.81.8.0 | 172.81.8.255 | 256 | 2021-04-09 | arin |
| 172.81.9.0/24 | 172.81.9.0 | 172.81.9.255 | 256 | 2021-04-19 | arin |
| 172.81.10.0/23 | 172.81.10.0 | 172.81.11.255 | 512 | 2021-04-07 | arin |
| 172.81.12.0/22 | 172.81.12.0 | 172.81.15.255 | 1,024 | 2021-04-21 | arin |
| 172.81.16.0/22 | 172.81.16.0 | 172.81.19.255 | 1,024 | 2021-04-01 | arin |
| 172.81.20.0/22 | 172.81.20.0 | 172.81.23.255 | 1,024 | 2021-04-01 | arin |
| 172.81.24.0/22 | 172.81.24.0 | 172.81.27.255 | 1,024 | 2021-04-06 | arin |
| 172.81.32.0/22 | 172.81.32.0 | 172.81.35.255 | 1,024 | 2021-04-22 | arin |
| 172.81.37.0/24 | 172.81.37.0 | 172.81.37.255 | 256 | 2021-04-06 | arin |
| 172.81.38.0/23 | 172.81.38.0 | 172.81.39.255 | 512 | 2021-04-01 | arin |
| 172.81.40.0/22 | 172.81.40.0 | 172.81.43.255 | 1,024 | 2021-04-01 | arin |
| 172.81.44.0/22 | 172.81.44.0 | 172.81.47.255 | 1,024 | 2021-04-01 | arin |
| 172.81.48.0/22 | 172.81.48.0 | 172.81.51.255 | 1,024 | 2021-04-01 | arin |
| 172.81.52.0/22 | 172.81.52.0 | 172.81.55.255 | 1,024 | 2021-04-01 | arin |
| 172.81.56.0/22 | 172.81.56.0 | 172.81.59.255 | 1,024 | 2021-04-01 | arin |
| 172.81.60.0/22 | 172.81.60.0 | 172.81.63.255 | 1,024 | 2021-04-01 | arin |
| 172.81.64.0/20 | 172.81.64.0 | 172.81.79.255 | 4,096 | 2015-05-11 | arin |
| 172.81.80.0/21 | 172.81.80.0 | 172.81.87.255 | 2,048 | 2015-05-12 | arin |
| 172.81.88.0/22 | 172.81.88.0 | 172.81.91.255 | 1,024 | 2015-05-29 | arin |
| 172.81.92.0/22 | 172.81.92.0 | 172.81.95.255 | 1,024 | 2015-05-14 | arin |
| 172.81.96.0/20 | 172.81.96.0 | 172.81.111.255 | 4,096 | 2023-09-05 | arin |
| 172.81.112.0/22 | 172.81.112.0 | 172.81.115.255 | 1,024 | 2018-04-04 | arin |
| 172.81.116.0/22 | 172.81.116.0 | 172.81.119.255 | 1,024 | 2015-05-13 | arin |
| 172.81.120.0/21 | 172.81.120.0 | 172.81.127.255 | 2,048 | 2015-05-14 | arin |
| 172.81.128.0/21 | 172.81.128.0 | 172.81.135.255 | 2,048 | 2015-05-14 | arin |
| 172.81.136.0/22 | 172.81.136.0 | 172.81.139.255 | 1,024 | 2015-05-20 | arin |
| 172.81.140.0/22 | 172.81.140.0 | 172.81.143.255 | 1,024 | 2015-05-14 | arin |
| 172.81.144.0/22 | 172.81.144.0 | 172.81.147.255 | 1,024 | 2023-12-20 | arin |
| 172.81.148.0/22 | 172.81.148.0 | 172.81.151.255 | 1,024 | 2023-12-20 | arin |
| 172.81.152.0/22 | 172.81.152.0 | 172.81.155.255 | 1,024 | 2015-05-15 | arin |
| 172.81.156.0/22 | 172.81.156.0 | 172.81.159.255 | 1,024 | 2015-05-14 | arin |
| 172.81.160.0/20 | 172.81.160.0 | 172.81.175.255 | 4,096 | 2015-05-14 | arin |
| 172.81.184.0/22 | 172.81.184.0 | 172.81.187.255 | 1,024 | 2015-05-19 | arin |
| 172.81.188.0/22 | 172.81.188.0 | 172.81.191.255 | 1,024 | 2015-05-18 | arin |
| 172.82.0.0/22 | 172.82.0.0 | 172.82.3.255 | 1,024 | 2021-04-06 | arin |
| 172.82.4.0/22 | 172.82.4.0 | 172.82.7.255 | 1,024 | 2021-04-15 | arin |
| 172.82.8.0/22 | 172.82.8.0 | 172.82.11.255 | 1,024 | 2021-04-06 | arin |
| 172.82.12.0/22 | 172.82.12.0 | 172.82.15.255 | 1,024 | 2021-04-06 | arin |
| 172.82.16.0/22 | 172.82.16.0 | 172.82.19.255 | 1,024 | 2021-04-07 | arin |
| 172.82.20.0/24 | 172.82.20.0 | 172.82.20.255 | 256 | 2021-04-06 | arin |
| 172.82.21.0/24 | 172.82.21.0 | 172.82.21.255 | 256 | 2021-04-08 | arin |
| 172.82.22.0/23 | 172.82.22.0 | 172.82.23.255 | 512 | 2021-04-06 | arin |
| 172.82.24.0/22 | 172.82.24.0 | 172.82.27.255 | 1,024 | 2021-04-06 | arin |
| 172.82.28.0/22 | 172.82.28.0 | 172.82.31.255 | 1,024 | 2021-04-21 | arin |
| 172.82.32.0/24 | 172.82.32.0 | 172.82.32.255 | 256 | 2021-04-06 | arin |
| 172.82.33.0/24 | 172.82.33.0 | 172.82.33.255 | 256 | 2021-04-15 | arin |
| 172.82.34.0/24 | 172.82.34.0 | 172.82.34.255 | 256 | 2021-04-06 | arin |
| 172.82.36.0/22 | 172.82.36.0 | 172.82.39.255 | 1,024 | 2021-04-06 | arin |
| 172.82.52.0/22 | 172.82.52.0 | 172.82.55.255 | 1,024 | 2021-04-06 | arin |
| 172.82.56.0/22 | 172.82.56.0 | 172.82.59.255 | 1,024 | 2021-04-06 | arin |
| 172.82.60.0/22 | 172.82.60.0 | 172.82.63.255 | 1,024 | 2021-04-06 | arin |
| 172.82.64.0/22 | 172.82.64.0 | 172.82.67.255 | 1,024 | 2021-04-09 | arin |
| 172.82.68.0/24 | 172.82.68.0 | 172.82.68.255 | 256 | 2021-04-06 | arin |
| 172.82.69.0/24 | 172.82.69.0 | 172.82.69.255 | 256 | 2021-06-02 | arin |
| 172.82.72.0/22 | 172.82.72.0 | 172.82.75.255 | 1,024 | 2021-04-06 | arin |
| 172.82.80.0/22 | 172.82.80.0 | 172.82.83.255 | 1,024 | 2021-04-06 | arin |
| 172.82.84.0/22 | 172.82.84.0 | 172.82.87.255 | 1,024 | 2021-04-08 | arin |
| 172.82.88.0/22 | 172.82.88.0 | 172.82.91.255 | 1,024 | 2021-04-08 | arin |
| 172.82.92.0/22 | 172.82.92.0 | 172.82.95.255 | 1,024 | 2021-04-08 | arin |
| 172.82.96.0/22 | 172.82.96.0 | 172.82.99.255 | 1,024 | 2021-04-12 | arin |
| 172.82.100.0/22 | 172.82.100.0 | 172.82.103.255 | 1,024 | 2021-04-06 | arin |
| 172.82.104.0/24 | 172.82.104.0 | 172.82.104.255 | 256 | 2021-04-08 | arin |
| 172.82.105.0/24 | 172.82.105.0 | 172.82.105.255 | 256 | 2021-04-08 | arin |
| 172.82.106.0/24 | 172.82.106.0 | 172.82.106.255 | 256 | 2021-04-08 | arin |
| 172.82.107.0/24 | 172.82.107.0 | 172.82.107.255 | 256 | 2021-04-08 | arin |
| 172.82.112.0/22 | 172.82.112.0 | 172.82.115.255 | 1,024 | 2021-04-06 | arin |
| 172.82.116.0/22 | 172.82.116.0 | 172.82.119.255 | 1,024 | 2021-04-06 | arin |
| 172.82.120.0/23 | 172.82.120.0 | 172.82.121.255 | 512 | 2021-04-08 | arin |
| 172.82.122.0/23 | 172.82.122.0 | 172.82.123.255 | 512 | 2021-04-06 | arin |
| 172.82.124.0/22 | 172.82.124.0 | 172.82.127.255 | 1,024 | 2021-04-06 | arin |
| 172.82.128.0/18 | 172.82.128.0 | 172.82.191.255 | 16,384 | 2015-05-14 | arin |
| 172.82.192.0/18 | 172.82.192.0 | 172.82.255.255 | 16,384 | 2016-07-05 | arin |
| 172.83.1.0/24 | 172.83.1.0 | 172.83.1.255 | 256 | 2018-01-13 | arin |
| 172.83.2.0/24 | 172.83.2.0 | 172.83.2.255 | 256 | 2018-02-06 | arin |
| 172.83.3.0/24 | 172.83.3.0 | 172.83.3.255 | 256 | 2018-01-13 | arin |
| 172.83.4.0/22 | 172.83.4.0 | 172.83.7.255 | 1,024 | 2018-01-18 | arin |
| 172.83.8.0/21 | 172.83.8.0 | 172.83.15.255 | 2,048 | 2018-01-17 | arin |
| 172.83.16.0/20 | 172.83.16.0 | 172.83.31.255 | 4,096 | 2018-01-13 | arin |
| 172.83.32.0/21 | 172.83.32.0 | 172.83.39.255 | 2,048 | 2018-01-13 | arin |
| 172.83.40.0/21 | 172.83.40.0 | 172.83.47.255 | 2,048 | 2018-01-13 | arin |
| 172.83.48.0/24 | 172.83.48.0 | 172.83.48.255 | 256 | 2018-01-30 | arin |
| 172.83.49.0/24 | 172.83.49.0 | 172.83.49.255 | 256 | 2018-02-28 | arin |
| 172.83.50.0/24 | 172.83.50.0 | 172.83.50.255 | 256 | 2018-01-22 | arin |
| 172.83.51.0/24 | 172.83.51.0 | 172.83.51.255 | 256 | 2018-01-17 | arin |
| 172.83.60.0/22 | 172.83.60.0 | 172.83.63.255 | 1,024 | 2018-01-13 | arin |
| 172.83.64.0/22 | 172.83.64.0 | 172.83.67.255 | 1,024 | 2018-01-19 | arin |
| 172.83.72.0/21 | 172.83.72.0 | 172.83.79.255 | 2,048 | 2022-03-30 | arin |
| 172.83.80.0/24 | 172.83.80.0 | 172.83.80.255 | 256 | 2018-05-11 | arin |
| 172.83.82.0/24 | 172.83.82.0 | 172.83.82.255 | 256 | 2018-05-11 | arin |
| 172.83.86.0/23 | 172.83.86.0 | 172.83.87.255 | 512 | 2018-01-17 | arin |
| 172.83.88.0/22 | 172.83.88.0 | 172.83.91.255 | 1,024 | 2018-01-14 | arin |
| 172.83.92.0/24 | 172.83.92.0 | 172.83.92.255 | 256 | 2018-01-19 | arin |
| 172.83.93.0/24 | 172.83.93.0 | 172.83.93.255 | 256 | 2020-07-01 | arin |
| 172.83.94.0/24 | 172.83.94.0 | 172.83.94.255 | 256 | 2018-03-19 | arin |
| 172.83.95.0/24 | 172.83.95.0 | 172.83.95.255 | 256 | 2018-03-15 | arin |
| 172.83.96.0/21 | 172.83.96.0 | 172.83.103.255 | 2,048 | 2018-01-17 | arin |
| 172.83.108.0/22 | 172.83.108.0 | 172.83.111.255 | 1,024 | 2018-01-19 | arin |
| 172.83.112.0/21 | 172.83.112.0 | 172.83.119.255 | 2,048 | 2018-01-19 | arin |
| 172.83.120.0/22 | 172.83.120.0 | 172.83.123.255 | 1,024 | 2018-03-09 | arin |
| 172.83.124.0/24 | 172.83.124.0 | 172.83.124.255 | 256 | 2018-02-12 | arin |
| 172.83.125.0/24 | 172.83.125.0 | 172.83.125.255 | 256 | 2018-01-29 | arin |
| 172.83.126.0/24 | 172.83.126.0 | 172.83.126.255 | 256 | 2018-02-12 | arin |
| 172.83.128.0/21 | 172.83.128.0 | 172.83.135.255 | 2,048 | 2020-09-28 | arin |
| 172.83.136.0/21 | 172.83.136.0 | 172.83.143.255 | 2,048 | 2018-01-14 | arin |
| 172.83.144.0/24 | 172.83.144.0 | 172.83.144.255 | 256 | 2018-01-15 | arin |
| 172.83.145.0/24 | 172.83.145.0 | 172.83.145.255 | 256 | 2018-02-06 | arin |
| 172.83.146.0/24 | 172.83.146.0 | 172.83.146.255 | 256 | 2018-01-19 | arin |
| 172.83.147.0/24 | 172.83.147.0 | 172.83.147.255 | 256 | 2018-06-01 | arin |
| 172.83.148.0/24 | 172.83.148.0 | 172.83.148.255 | 256 | 2018-01-17 | arin |
| 172.83.149.0/24 | 172.83.149.0 | 172.83.149.255 | 256 | 2018-01-19 | arin |
| 172.83.150.0/24 | 172.83.150.0 | 172.83.150.255 | 256 | 2018-02-13 | arin |
| 172.83.151.0/24 | 172.83.151.0 | 172.83.151.255 | 256 | 2018-01-17 | arin |
| 172.83.152.0/21 | 172.83.152.0 | 172.83.159.255 | 2,048 | 2018-01-24 | arin |
| 172.83.176.0/20 | 172.83.176.0 | 172.83.191.255 | 4,096 | 2018-01-15 | arin |
| 172.83.192.0/21 | 172.83.192.0 | 172.83.199.255 | 2,048 | 2018-01-18 | arin |
| 172.83.200.0/24 | 172.83.200.0 | 172.83.200.255 | 256 | 2018-01-18 | arin |
| 172.83.201.0/24 | 172.83.201.0 | 172.83.201.255 | 256 | 2018-01-19 | arin |
| 172.83.202.0/24 | 172.83.202.0 | 172.83.202.255 | 256 | 2018-01-17 | arin |
| 172.83.203.0/24 | 172.83.203.0 | 172.83.203.255 | 256 | 2018-02-05 | arin |
| 172.83.204.0/24 | 172.83.204.0 | 172.83.204.255 | 256 | 2018-01-29 | arin |
| 172.83.205.0/24 | 172.83.205.0 | 172.83.205.255 | 256 | 2021-05-07 | arin |
| 172.83.206.0/24 | 172.83.206.0 | 172.83.206.255 | 256 | 2018-01-29 | arin |
| 172.83.207.0/24 | 172.83.207.0 | 172.83.207.255 | 256 | 2020-04-07 | arin |
| 172.83.224.0/20 | 172.83.224.0 | 172.83.239.255 | 4,096 | 2018-01-15 | arin |
| 172.83.240.0/21 | 172.83.240.0 | 172.83.247.255 | 2,048 | 2018-01-15 | arin |
| 172.83.248.0/24 | 172.83.248.0 | 172.83.248.255 | 256 | 2018-01-18 | arin |
| 172.83.249.0/24 | 172.83.249.0 | 172.83.249.255 | 256 | 2019-01-09 | arin |
| 172.83.251.0/24 | 172.83.251.0 | 172.83.251.255 | 256 | 2018-01-18 | arin |
| 172.84.64.0/18 | 172.84.64.0 | 172.84.127.255 | 16,384 | 2018-01-16 | arin |
| 172.84.128.0/24 | 172.84.128.0 | 172.84.128.255 | 256 | 2018-02-12 | arin |
| 172.84.129.0/24 | 172.84.129.0 | 172.84.129.255 | 256 | 2018-03-06 | arin |
| 172.84.130.0/24 | 172.84.130.0 | 172.84.130.255 | 256 | 2018-01-17 | arin |
| 172.84.131.0/24 | 172.84.131.0 | 172.84.131.255 | 256 | 2018-01-13 | arin |
| 172.84.132.0/22 | 172.84.132.0 | 172.84.135.255 | 1,024 | 2018-01-13 | arin |
| 172.84.136.0/21 | 172.84.136.0 | 172.84.143.255 | 2,048 | 2018-01-23 | arin |
| 172.84.144.0/24 | 172.84.144.0 | 172.84.144.255 | 256 | 2018-01-17 | arin |
| 172.84.146.0/23 | 172.84.146.0 | 172.84.147.255 | 512 | 2018-02-13 | arin |
| 172.84.148.0/22 | 172.84.148.0 | 172.84.151.255 | 1,024 | 2018-01-17 | arin |
| 172.84.152.0/24 | 172.84.152.0 | 172.84.152.255 | 256 | 2018-02-20 | arin |
| 172.84.153.0/24 | 172.84.153.0 | 172.84.153.255 | 256 | 2018-02-06 | arin |
| 172.84.154.0/24 | 172.84.154.0 | 172.84.154.255 | 256 | 2018-03-14 | arin |
| 172.84.155.0/24 | 172.84.155.0 | 172.84.155.255 | 256 | 2018-01-13 | arin |
| 172.84.156.0/24 | 172.84.156.0 | 172.84.156.255 | 256 | 2018-02-22 | arin |
| 172.84.157.0/24 | 172.84.157.0 | 172.84.157.255 | 256 | 2018-01-23 | arin |
| 172.84.158.0/24 | 172.84.158.0 | 172.84.158.255 | 256 | 2018-02-23 | arin |
| 172.84.159.0/24 | 172.84.159.0 | 172.84.159.255 | 256 | 2018-01-17 | arin |
| 172.84.176.0/20 | 172.84.176.0 | 172.84.191.255 | 4,096 | 2019-04-19 | arin |
| 172.85.0.0/19 | 172.85.0.0 | 172.85.31.255 | 8,192 | 2015-05-15 | arin |
| 172.85.32.0/19 | 172.85.32.0 | 172.85.63.255 | 8,192 | 2015-05-18 | arin |
| 172.85.64.0/21 | 172.85.64.0 | 172.85.71.255 | 2,048 | 2015-05-20 | arin |
| 172.85.72.0/22 | 172.85.72.0 | 172.85.75.255 | 1,024 | 2015-05-21 | arin |
| 172.85.76.0/22 | 172.85.76.0 | 172.85.79.255 | 1,024 | 2015-05-28 | arin |
| 172.85.88.0/21 | 172.85.88.0 | 172.85.95.255 | 2,048 | 2015-05-21 | arin |
| 172.85.96.0/20 | 172.85.96.0 | 172.85.111.255 | 4,096 | 2015-05-21 | arin |
| 172.85.112.0/21 | 172.85.112.0 | 172.85.119.255 | 2,048 | 2015-05-18 | arin |
| 172.85.120.0/22 | 172.85.120.0 | 172.85.123.255 | 1,024 | 2015-05-19 | arin |
| 172.85.128.0/17 | 172.85.128.0 | 172.85.255.255 | 32,768 | 2015-05-19 | arin |
| 172.86.0.0/18 | 172.86.0.0 | 172.86.63.255 | 16,384 | 2015-05-22 | arin |
| 172.86.64.0/18 | 172.86.64.0 | 172.86.127.255 | 16,384 | 2015-05-26 | arin |
| 172.86.128.0/20 | 172.86.128.0 | 172.86.143.255 | 4,096 | 2015-05-28 | arin |
| 172.86.144.0/21 | 172.86.144.0 | 172.86.151.255 | 2,048 | 2022-09-12 | arin |
| 172.86.152.0/22 | 172.86.152.0 | 172.86.155.255 | 1,024 | 2022-05-13 | arin |
| 172.86.156.0/23 | 172.86.156.0 | 172.86.157.255 | 512 | 2022-09-15 | arin |
| 172.86.158.0/24 | 172.86.158.0 | 172.86.158.255 | 256 | 2022-11-17 | arin |
| 172.86.160.0/20 | 172.86.160.0 | 172.86.175.255 | 4,096 | 2015-06-01 | arin |
| 172.86.176.0/21 | 172.86.176.0 | 172.86.183.255 | 2,048 | 2015-05-29 | arin |
| 172.86.224.0/21 | 172.86.224.0 | 172.86.231.255 | 2,048 | 2018-06-01 | arin |
| 172.86.232.0/22 | 172.86.232.0 | 172.86.235.255 | 1,024 | 2018-06-19 | arin |
| 172.86.236.0/24 | 172.86.236.0 | 172.86.236.255 | 256 | 2018-07-30 | arin |
| 172.86.237.0/24 | 172.86.237.0 | 172.86.237.255 | 256 | 2018-06-06 | arin |
| 172.86.238.0/24 | 172.86.238.0 | 172.86.238.255 | 256 | 2018-06-26 | arin |
| 172.86.239.0/24 | 172.86.239.0 | 172.86.239.255 | 256 | 2018-06-04 | arin |
| 172.86.248.0/21 | 172.86.248.0 | 172.86.255.255 | 2,048 | 2015-06-05 | arin |
| 172.87.0.0/20 | 172.87.0.0 | 172.87.15.255 | 4,096 | 2015-05-21 | arin |
| 172.87.16.0/21 | 172.87.16.0 | 172.87.23.255 | 2,048 | 2015-05-22 | arin |
| 172.87.24.0/21 | 172.87.24.0 | 172.87.31.255 | 2,048 | 2015-05-28 | arin |
| 172.87.32.0/22 | 172.87.32.0 | 172.87.35.255 | 1,024 | 2015-05-26 | arin |
| 172.87.36.0/22 | 172.87.36.0 | 172.87.39.255 | 1,024 | 2015-05-27 | arin |
| 172.87.40.0/21 | 172.87.40.0 | 172.87.47.255 | 2,048 | 2015-05-26 | arin |
| 172.87.48.0/20 | 172.87.48.0 | 172.87.63.255 | 4,096 | 2015-05-22 | arin |
| 172.87.64.0/21 | 172.87.64.0 | 172.87.71.255 | 2,048 | 2015-05-26 | arin |
| 172.87.72.0/22 | 172.87.72.0 | 172.87.75.255 | 1,024 | 2015-05-26 | arin |
| 172.87.76.0/22 | 172.87.76.0 | 172.87.79.255 | 1,024 | 2015-05-29 | arin |
| 172.87.96.0/19 | 172.87.96.0 | 172.87.127.255 | 8,192 | 2015-06-22 | arin |
| 172.87.128.0/18 | 172.87.128.0 | 172.87.191.255 | 16,384 | 2015-05-19 | arin |
| 172.87.192.0/19 | 172.87.192.0 | 172.87.223.255 | 8,192 | 2015-05-19 | arin |
| 172.87.224.0/22 | 172.87.224.0 | 172.87.227.255 | 1,024 | 2018-06-01 | arin |
| 172.87.228.0/23 | 172.87.228.0 | 172.87.229.255 | 512 | 2018-06-25 | arin |
| 172.87.230.0/24 | 172.87.230.0 | 172.87.230.255 | 256 | 2018-06-18 | arin |
| 172.87.231.0/24 | 172.87.231.0 | 172.87.231.255 | 256 | 2018-06-04 | arin |
| 172.87.232.0/21 | 172.87.232.0 | 172.87.239.255 | 2,048 | 2018-06-01 | arin |
| 172.87.240.0/20 | 172.87.240.0 | 172.87.255.255 | 4,096 | 2017-11-29 | arin |
| 172.88.0.0/14 | 172.88.0.0 | 172.91.255.255 | 262,144 | 2015-05-15 | arin |
| 172.92.0.0/16 | 172.92.0.0 | 172.92.255.255 | 65,536 | 2015-05-26 | arin |
| 172.93.0.0/23 | 172.93.0.0 | 172.93.1.255 | 512 | 2015-06-01 | arin |
| 172.93.8.0/21 | 172.93.8.0 | 172.93.15.255 | 2,048 | 2017-10-19 | arin |
| 172.93.48.0/21 | 172.93.48.0 | 172.93.55.255 | 2,048 | 2017-01-03 | arin |
| 172.93.60.0/22 | 172.93.60.0 | 172.93.63.255 | 1,024 | 2017-02-03 | arin |
| 172.93.64.0/20 | 172.93.64.0 | 172.93.79.255 | 4,096 | 2015-06-04 | arin |
| 172.93.96.0/20 | 172.93.96.0 | 172.93.111.255 | 4,096 | 2015-06-03 | arin |
| 172.93.112.0/21 | 172.93.112.0 | 172.93.119.255 | 2,048 | 2015-06-04 | arin |
| 172.93.120.0/22 | 172.93.120.0 | 172.93.123.255 | 1,024 | 2015-06-04 | arin |
| 172.93.128.0/17 | 172.93.128.0 | 172.93.255.255 | 32,768 | 2015-06-01 | arin |
| 172.94.0.0/17 | 172.94.0.0 | 172.94.127.255 | 32,768 | 2015-06-02 | arin |
| 172.95.0.0/16 | 172.95.0.0 | 172.95.255.255 | 65,536 | 2015-06-29 | arin |
| 172.96.0.0/21 | 172.96.0.0 | 172.96.7.255 | 2,048 | 2015-06-05 | arin |
| 172.96.24.0/21 | 172.96.24.0 | 172.96.31.255 | 2,048 | 2015-06-08 | arin |
| 172.96.32.0/22 | 172.96.32.0 | 172.96.35.255 | 1,024 | 2015-06-05 | arin |
| 172.96.36.0/22 | 172.96.36.0 | 172.96.39.255 | 1,024 | 2015-06-12 | arin |
| 172.96.48.0/21 | 172.96.48.0 | 172.96.55.255 | 2,048 | 2015-06-09 | arin |
| 172.96.56.0/21 | 172.96.56.0 | 172.96.63.255 | 2,048 | 2019-03-07 | arin |
| 172.96.64.0/20 | 172.96.64.0 | 172.96.79.255 | 4,096 | 2018-12-06 | arin |
| 172.96.80.0/20 | 172.96.80.0 | 172.96.95.255 | 4,096 | 2019-01-25 | arin |
| 172.96.96.0/20 | 172.96.96.0 | 172.96.111.255 | 4,096 | 2015-06-16 | arin |
| 172.96.112.0/20 | 172.96.112.0 | 172.96.127.255 | 4,096 | 2015-06-09 | arin |
| 172.96.128.0/24 | 172.96.128.0 | 172.96.128.255 | 256 | 2019-03-18 | arin |
| 172.96.129.0/24 | 172.96.129.0 | 172.96.129.255 | 256 | 2018-10-11 | arin |
| 172.96.130.0/23 | 172.96.130.0 | 172.96.131.255 | 512 | 2018-05-01 | arin |
| 172.96.132.0/22 | 172.96.132.0 | 172.96.135.255 | 1,024 | 2022-08-31 | arin |
| 172.96.136.0/22 | 172.96.136.0 | 172.96.139.255 | 1,024 | 2017-10-17 | arin |
| 172.96.140.0/22 | 172.96.140.0 | 172.96.143.255 | 1,024 | 2017-07-28 | arin |
| 172.96.144.0/21 | 172.96.144.0 | 172.96.151.255 | 2,048 | 2017-02-24 | arin |
| 172.96.152.0/21 | 172.96.152.0 | 172.96.159.255 | 2,048 | 2017-03-15 | arin |
| 172.96.160.0/23 | 172.96.160.0 | 172.96.161.255 | 512 | 2017-02-24 | arin |
| 172.96.162.0/23 | 172.96.162.0 | 172.96.163.255 | 512 | 2017-02-17 | arin |
| 172.96.164.0/22 | 172.96.164.0 | 172.96.167.255 | 1,024 | 2017-04-12 | arin |
| 172.96.172.0/23 | 172.96.172.0 | 172.96.173.255 | 512 | 2017-02-24 | arin |
| 172.96.174.0/23 | 172.96.174.0 | 172.96.175.255 | 512 | 2017-03-08 | arin |
| 172.97.0.0/21 | 172.97.0.0 | 172.97.7.255 | 2,048 | 2015-06-19 | arin |
| 172.97.16.0/20 | 172.97.16.0 | 172.97.31.255 | 4,096 | 2015-06-10 | arin |
| 172.97.32.0/20 | 172.97.32.0 | 172.97.47.255 | 4,096 | 2015-06-11 | arin |
| 172.97.56.0/22 | 172.97.56.0 | 172.97.59.255 | 1,024 | 2015-06-12 | arin |
| 172.97.64.0/21 | 172.97.64.0 | 172.97.71.255 | 2,048 | 2015-06-11 | arin |
| 172.97.72.0/21 | 172.97.72.0 | 172.97.79.255 | 2,048 | 2015-06-30 | arin |
| 172.97.96.0/22 | 172.97.96.0 | 172.97.99.255 | 1,024 | 2015-06-15 | arin |
| 172.97.100.0/22 | 172.97.100.0 | 172.97.103.255 | 1,024 | 2015-06-15 | arin |
| 172.97.104.0/21 | 172.97.104.0 | 172.97.111.255 | 2,048 | 2016-10-17 | arin |
| 172.97.112.0/22 | 172.97.112.0 | 172.97.115.255 | 1,024 | 2015-07-15 | arin |
| 172.97.116.0/22 | 172.97.116.0 | 172.97.119.255 | 1,024 | 2015-06-16 | arin |
| 172.97.124.0/22 | 172.97.124.0 | 172.97.127.255 | 1,024 | 2015-06-18 | arin |
| 172.98.0.0/22 | 172.98.0.0 | 172.98.3.255 | 1,024 | 2021-07-07 | arin |
| 172.98.4.0/24 | 172.98.4.0 | 172.98.4.255 | 256 | 2021-07-07 | arin |
| 172.98.5.0/24 | 172.98.5.0 | 172.98.5.255 | 256 | 2021-07-22 | arin |
| 172.98.6.0/24 | 172.98.6.0 | 172.98.6.255 | 256 | 2021-07-07 | arin |
| 172.98.7.0/24 | 172.98.7.0 | 172.98.7.255 | 256 | 2021-07-12 | arin |
| 172.98.8.0/22 | 172.98.8.0 | 172.98.11.255 | 1,024 | 2021-07-07 | arin |
| 172.98.12.0/22 | 172.98.12.0 | 172.98.15.255 | 1,024 | 2021-07-08 | arin |
| 172.98.16.0/22 | 172.98.16.0 | 172.98.19.255 | 1,024 | 2021-07-08 | arin |
| 172.98.20.0/22 | 172.98.20.0 | 172.98.23.255 | 1,024 | 2021-07-12 | arin |
| 172.98.24.0/24 | 172.98.24.0 | 172.98.24.255 | 256 | 2021-07-08 | arin |
| 172.98.25.0/24 | 172.98.25.0 | 172.98.25.255 | 256 | 2021-07-15 | arin |
| 172.98.26.0/23 | 172.98.26.0 | 172.98.27.255 | 512 | 2021-07-08 | arin |
| 172.98.28.0/24 | 172.98.28.0 | 172.98.28.255 | 256 | 2023-10-11 | arin |
| 172.98.30.0/23 | 172.98.30.0 | 172.98.31.255 | 512 | 2021-07-07 | arin |
| 172.98.32.0/22 | 172.98.32.0 | 172.98.35.255 | 1,024 | 2021-07-08 | arin |
| 172.98.36.0/22 | 172.98.36.0 | 172.98.39.255 | 1,024 | 2021-07-07 | arin |
| 172.98.40.0/22 | 172.98.40.0 | 172.98.43.255 | 1,024 | 2021-07-07 | arin |
| 172.98.44.0/22 | 172.98.44.0 | 172.98.47.255 | 1,024 | 2021-07-07 | arin |
| 172.98.48.0/22 | 172.98.48.0 | 172.98.51.255 | 1,024 | 2021-07-08 | arin |
| 172.98.60.0/22 | 172.98.60.0 | 172.98.63.255 | 1,024 | 2021-07-12 | arin |
| 172.98.64.0/19 | 172.98.64.0 | 172.98.95.255 | 8,192 | 2015-06-15 | arin |
| 172.98.96.0/19 | 172.98.96.0 | 172.98.127.255 | 8,192 | 2015-06-15 | arin |
| 172.98.128.0/20 | 172.98.128.0 | 172.98.143.255 | 4,096 | 2015-06-16 | arin |
| 172.98.160.0/19 | 172.98.160.0 | 172.98.191.255 | 8,192 | 2015-06-16 | arin |
| 172.98.192.0/20 | 172.98.192.0 | 172.98.207.255 | 4,096 | 2015-06-17 | arin |
| 172.98.208.0/21 | 172.98.208.0 | 172.98.215.255 | 2,048 | 2015-06-17 | arin |
| 172.98.216.0/22 | 172.98.216.0 | 172.98.219.255 | 1,024 | 2019-11-15 | arin |
| 172.98.220.0/22 | 172.98.220.0 | 172.98.223.255 | 1,024 | 2015-06-18 | arin |
| 172.98.224.0/20 | 172.98.224.0 | 172.98.239.255 | 4,096 | 2015-06-26 | arin |
| 172.98.240.0/20 | 172.98.240.0 | 172.98.255.255 | 4,096 | 2015-06-23 | arin |
| 172.99.0.0/22 | 172.99.0.0 | 172.99.3.255 | 1,024 | 2015-06-23 | arin |
| 172.99.4.0/22 | 172.99.4.0 | 172.99.7.255 | 1,024 | 2021-11-29 | arin |
| 172.99.12.0/22 | 172.99.12.0 | 172.99.15.255 | 1,024 | 2015-06-19 | arin |
| 172.99.16.0/22 | 172.99.16.0 | 172.99.19.255 | 1,024 | 2015-07-08 | arin |
| 172.99.32.0/19 | 172.99.32.0 | 172.99.63.255 | 8,192 | 2015-06-29 | arin |
| 172.99.64.0/18 | 172.99.64.0 | 172.99.127.255 | 16,384 | 2015-06-18 | arin |
| 172.99.128.0/22 | 172.99.128.0 | 172.99.131.255 | 1,024 | 2021-01-05 | arin |
| 172.99.132.0/23 | 172.99.132.0 | 172.99.133.255 | 512 | 2021-01-07 | arin |
| 172.99.140.0/22 | 172.99.140.0 | 172.99.143.255 | 1,024 | 2021-01-11 | arin |
| 172.99.144.0/22 | 172.99.144.0 | 172.99.147.255 | 1,024 | 2021-01-07 | arin |
| 172.99.160.0/23 | 172.99.160.0 | 172.99.161.255 | 512 | 2021-01-05 | arin |
| 172.99.162.0/23 | 172.99.162.0 | 172.99.163.255 | 512 | 2021-01-11 | arin |
| 172.99.168.0/23 | 172.99.168.0 | 172.99.169.255 | 512 | 2021-01-11 | arin |
| 172.99.170.0/23 | 172.99.170.0 | 172.99.171.255 | 512 | 2021-02-22 | arin |
| 172.99.172.0/22 | 172.99.172.0 | 172.99.175.255 | 1,024 | 2021-01-07 | arin |
| 172.99.176.0/22 | 172.99.176.0 | 172.99.179.255 | 1,024 | 2021-01-19 | arin |
| 172.99.180.0/22 | 172.99.180.0 | 172.99.183.255 | 1,024 | 2021-01-05 | arin |
| 172.99.188.0/22 | 172.99.188.0 | 172.99.191.255 | 1,024 | 2021-01-05 | arin |
| 172.99.193.0/24 | 172.99.193.0 | 172.99.193.255 | 256 | 2021-01-20 | arin |
| 172.99.195.0/24 | 172.99.195.0 | 172.99.195.255 | 256 | 2021-01-06 | arin |
| 172.99.212.0/22 | 172.99.212.0 | 172.99.215.255 | 1,024 | 2021-01-06 | arin |
| 172.99.216.0/24 | 172.99.216.0 | 172.99.216.255 | 256 | 2021-01-19 | arin |
| 172.99.217.0/24 | 172.99.217.0 | 172.99.217.255 | 256 | 2021-01-07 | arin |