Telstra International Limited operates AS4637: 343 IPv4 prefixes covering 1,231,872 addresses, most of them in 
Hong Kong.
By IPv4 addresses the network ranks #294 worldwide and #6 of 793 networks in Hong Kong. That is 5.0% of the country’s IPv4 space.
The network spreads across six or more countries: Hong Kong 52%, United Kingdom 27%, Japan 8.0%.
The largest block is 195.152.0.0 to 195.153.123.255 with 97,280 addresses, geolocated to London.
- IPv4 addresses
- 1,231,872
- IPv4 prefixes
- 343
- World rank
- #294
- Country share
- 5.0%
- IPv6 ranges
- 3
Addresses by country
Largest blocks
- 195.152.0.0 London97,280
- 13.142.0.0 Hong Kong69,632
- 154.32.0.0 London65,536
- 146.101.80.0 London45,056
- 134.159.81.0 Taipei44,800
- 195.153.125.0 London33,536
- 202.84.128.0 Wan Chai32,768
- 74.3.0.0 Hong Kong32,768
Networks of similar size
- AS39891 Saudi Telecom Company JSC
1,256,704 - AS11492 CABLE ONE, INC.
1,252,096 - AS12091 MTN SA
1,237,536 - AS44244 Iran Cell Service and Communication Company
1,231,872 - AS137266 China Telecom
1,230,592 - AS7459 Grande Communications Networks, LLC1,224,192
- AS6503 Axtel, S.A.B. de C.V.
1,223,936 - AS12741 Netia SA
1,222,400
IPv4 prefixes
- 5.226.185.0/24
- 13.142.0.0/16
- 13.143.0.0/20
- 13.143.32.0/20
- 31.58.172.0/22
- 31.59.76.0/23
- 37.153.152.0/24
- 42.99.128.0/17
- 58.145.195.0/24
- 58.145.196.0/24
- 58.145.198.0/23
- 58.145.200.0/22
- 58.145.225.0/24
- 58.145.228.0/24
- 58.145.234.0/24
- 61.8.32.0/24
- 61.8.34.0/23
- 61.8.36.0/22
- 61.8.40.0/21
- 61.8.48.0/20
- 61.14.128.0/19
- 61.14.160.0/21
- 61.14.168.0/22
- 61.14.173.0/24
- 61.14.174.0/23
- 61.14.176.0/20
- 61.87.128.0/18
- 63.133.192.0/20
- 63.160.0.0/24
- 63.160.4.0/23
- 63.160.32.0/21
- 63.160.224.0/19
- 63.161.16.0/20
- 63.161.224.0/19
- 63.164.160.0/19
- 63.172.128.0/19
- 63.175.32.0/19
- 64.32.152.0/21
- 64.50.136.0/21
- 64.145.128.0/17
- 65.160.160.0/19
- 65.161.96.0/19
- 65.163.96.0/19
- 65.166.32.0/19
- 65.166.192.0/19
- 65.167.0.0/19
- 65.167.160.0/19
- 65.170.224.0/19
- 65.171.32.0/19
- 65.171.192.0/19
- 65.173.160.0/19
- 65.174.32.0/19
- 66.17.72.0/21
- 66.200.240.0/20
- 74.3.0.0/17
- 81.172.116.0/24
- 82.21.101.0/24
- 82.21.134.0/23
- 82.21.144.0/24
- 82.29.26.0/24
- 82.29.75.0/24
- 88.223.47.0/24
- 91.209.48.0/24
- 95.134.136.0/22
- 95.170.21.0/24
- 95.170.24.0/24
- 95.170.31.0/24
- 95.173.55.0/24
- 101.167.176.0/20
- 101.167.192.0/19
- 102.129.166.0/24
- 104.132.12.0/24
- 104.234.104.0/24
- 104.234.184.0/24
- 116.92.4.0/24
- 116.92.8.0/23
- 116.92.72.0/24
- 120.138.192.0/18
- 121.91.226.0/23
- 122.8.40.0/22
- 122.152.128.0/19
- 122.152.160.0/22
- 122.152.165.0/24
- 122.152.166.0/23
- 122.152.168.0/21
- 122.152.176.0/20
- 125.252.64.0/22
- 125.252.68.0/24
- 125.252.70.0/23
- 125.252.72.0/22
- 125.252.76.0/23
- 125.252.78.0/24
- 125.252.80.0/20
- 125.252.96.0/23
- 125.252.98.0/24
- 125.252.100.0/22
- 125.252.104.0/21
- 125.252.112.0/20
- 134.159.0.0/18
- 134.159.64.0/20
- 134.159.81.0/24
- 134.159.82.0/23
- 134.159.84.0/22
- 134.159.88.0/21
- 134.159.96.0/19
- 134.159.128.0/17
- 136.175.160.0/24
- 144.31.208.0/22
- 144.130.128.0/20
- 144.223.96.0/19
- 144.224.32.0/19
- 144.224.64.0/19
- 144.230.0.0/19
- 144.230.96.0/19
- 146.101.0.0/18
- 146.101.64.0/21
- 146.101.72.0/22
- 146.101.76.0/23
- 146.101.78.0/24
- 146.101.80.0/20
- 146.101.96.0/19
- 146.101.128.0/17
- 147.125.250.0/23
- 149.18.109.0/24
- 151.243.202.0/23
- 154.8.0.0/19
- 154.8.32.0/20
- 154.16.83.0/24
- 154.32.0.0/16
- 155.161.52.0/24
- 155.161.64.0/24
- 157.254.14.0/24
- 165.197.104.0/22
- 173.239.233.0/24
- 173.244.40.0/24
- 173.244.51.0/24
- 175.29.19.0/24
- 175.29.20.0/24
- 175.29.28.0/22
- 179.198.56.0/21
- 179.236.148.0/22
- 179.236.152.0/21
- 179.236.160.0/19
- 191.223.144.0/20
- 192.84.230.0/24
- 192.154.16.0/24
- 192.154.24.0/23
- 192.154.35.0/24
- 193.82.96.0/19
- 193.82.128.0/19
- 193.82.192.0/19
- 194.33.57.0/24
- 194.34.69.0/24
- 195.152.0.0/16
- 195.153.0.0/18
- 195.153.64.0/19
- 195.153.96.0/20
- 195.153.112.0/21
- 195.153.120.0/22
- 195.153.125.0/24
- 195.153.126.0/23
- 195.153.128.0/17
- 196.44.117.0/24
- 198.68.128.0/19
- 198.69.64.0/19
- 199.0.0.0/18
- 199.189.149.0/24
- 199.223.38.0/24
- 201.8.96.0/19
- 202.40.141.0/24
- 202.40.148.0/23
- 202.41.224.0/20
- 202.42.5.0/24
- 202.42.38.0/24
- 202.42.41.0/24
- 202.42.42.0/24
- 202.42.45.0/24
- 202.42.46.0/24
- 202.42.52.0/24
- 202.42.62.0/24
- 202.42.64.0/23
- 202.42.163.0/24
- 202.42.206.0/24
- 202.42.212.0/23
- 202.42.234.0/23
- 202.47.193.0/24
- 202.47.197.0/24
- 202.47.198.0/24
- 202.47.200.0/24
- 202.47.204.0/22
- 202.47.208.0/21
- 202.47.216.0/24
- 202.47.220.0/24
- 202.47.222.0/24
- 202.64.56.0/24
- 202.64.63.0/24
- 202.64.128.0/24
- 202.64.130.0/23
- 202.64.132.0/24
- 202.64.135.0/24
- 202.64.137.0/24
- 202.64.139.0/24
- 202.64.144.0/24
- 202.64.149.0/24
- 202.64.150.0/23
- 202.64.156.0/23
- 202.64.174.0/24
- 202.64.179.0/24
- 202.64.182.0/24
- 202.64.187.0/24
- 202.64.190.0/24
- 202.64.192.0/24
- 202.64.210.0/24
- 202.84.128.0/17
- 202.93.205.0/24
- 202.126.128.0/18
- 202.127.69.0/24
- 202.127.70.0/23
- 202.127.73.0/24
- 202.127.74.0/24
- 202.127.76.0/22
- 202.128.128.0/19
- 202.147.0.0/18
- 202.227.128.0/18
- 203.19.234.0/24
- 203.28.106.0/24
- 203.81.37.0/24
- 203.81.41.0/24
- 203.81.44.0/23
- 203.81.46.0/24
- 203.81.56.0/24
- 203.81.62.0/24
- 203.100.135.0/24
- 203.101.128.0/19
- 203.112.224.0/19
- 203.120.17.0/24
- 203.120.23.0/24
- 203.120.27.0/24
- 203.120.42.0/24
- 203.120.46.0/24
- 203.120.48.0/23
- 203.120.60.0/24
- 203.120.63.0/24
- 203.120.64.0/24
- 203.120.68.0/24
- 203.120.94.0/23
- 203.120.96.0/24
- 203.120.100.0/24
- 203.120.102.0/24
- 203.120.106.0/23
- 203.120.142.0/24
- 203.120.150.0/24
- 203.120.156.0/24
- 203.120.160.0/23
- 203.120.170.0/23
- 203.120.174.0/24
- 203.120.185.0/24
- 203.120.188.0/24
- 203.120.213.0/24
- 203.120.221.0/24
- 203.120.238.0/24
- 203.120.245.0/24
- 203.123.128.0/18
- 203.160.141.0/24
- 203.190.64.0/19
- 203.192.128.0/18
- 205.214.32.0/20
- 205.241.240.0/20
- 206.40.192.0/20
- 206.106.48.0/20
- 206.253.0.0/20
- 207.15.64.0/18
- 207.43.0.0/20
- 208.3.0.0/20
- 208.9.128.0/18
- 208.19.208.0/20
- 208.29.96.0/19
- 208.30.128.0/19
- 210.17.222.0/24
- 210.24.8.0/24
- 210.24.50.0/24
- 210.24.130.0/24
- 210.24.139.0/24
- 210.24.157.0/24
- 210.24.166.0/24
- 210.24.168.0/24
- 210.24.196.0/24
- 210.57.0.0/22
- 210.57.4.0/23
- 210.57.6.0/24
- 210.57.8.0/21
- 210.57.16.0/22
- 210.57.22.0/23
- 210.57.24.0/23
- 210.57.26.0/24
- 210.57.29.0/24
- 210.57.30.0/23
- 210.57.33.0/24
- 210.57.34.0/24
- 210.57.36.0/24
and 43 more prefixes
Questions and answers
Who owns AS4637?
Autonomous system AS4637 is operated by Telstra International Limited.
How many IP addresses does AS4637 have?
The network holds 1,231,872 IPv4 addresses in 343 prefixes, plus 3 IPv6 ranges.
Which country is AS4637 in?
The main country is Hong Kong, with addresses in 5 more countries.
How big is AS4637?
By IPv4 addresses it ranks #294 worldwide.
What is the largest address block of AS4637?
195.152.0.0 to 195.153.123.255, 97,280 addresses.