ResearchIRR · RADB

AS-CTCTYUN ctyun.cn

An as-set registered in RADB, maintained by MAINT-ASS58519. It names 1 AS and 0 sets directly; followed all the way down, it reaches 1 ASes through 0 nested sets.

Members

What AS-CTCTYUN lists

1 AS and 0 sets, written in the object across every registry that holds it. Sets open their own page.

AS58519 CHINATELECOM-Ctcloud
Expanded

Every AS it reaches

What a filter built from AS-CTCTYUN would let in: 1 ASes.

Show the 1 ASes
AS58519
Prefixes

What AS-CTCTYUN covers

Every route object in the IRR whose origin is one of the 1 ASes it reaches: the prefixes a filter built from AS-CTCTYUN (with bgpq4, say) would allow. 272 IPv4 and 17 IPv6. Every one is in the IRR API.

272 IPv4 prefixes
101.1.0.0/22101.128.0.0/22101.2.172.0/22101.203.172.0/22101.234.76.0/22101.251.0.0/22101.50.56.0/22101.53.100.0/22101.78.0.0/22103.161.220.0/23103.17.221.0/24103.215.140.0/22103.215.28.0/22103.220.56.0/22103.220.64.0/22103.36.220.0/22103.90.152.0/24103.90.153.0/24103.90.154.0/24103.90.155.0/24110.76.156.0/22110.76.184.0/22111.235.156.0/22113.125.0.0/16113.125.104.0/24113.125.110.0/24113.125.12.0/24113.125.121.0/24113.125.155.0/24113.125.172.0/24113.125.177.0/24113.125.180.0/24113.125.22.0/24113.125.37.0/24113.125.39.0/24113.125.4.0/24113.125.45.0/24113.125.48.0/24113.125.61.0/24113.125.72.0/24113.125.73.0/24113.125.76.0/24113.125.82.0/24113.125.92.0/24113.125.96.0/24113.125.98.0/24116.63.128.0/18118.123.169.0/24118.123.170.0/24118.123.171.0/24122.9.128.0/19122.9.160.0/20132.33.108.0/24139.9.144.0/20139.9.224.0/20139.9.240.0/21139.9.248.0/22140.210.192.0/19140.210.224.0/20140.246.0.0/16140.246.101.0/24140.246.103.0/24140.246.106.0/24140.246.114.0/24140.246.117.0/24140.246.128.0/24140.246.13.0/24140.246.150.0/24140.246.163.0/24140.246.166.0/24140.246.181.0/24140.246.182.0/24140.246.213.0/24140.246.214.0/24140.246.218.0/24140.246.222.0/24140.246.251.0/24140.246.33.0/24140.246.34.0/24140.246.36.0/24140.246.4.0/24140.246.44.0/24140.246.46.0/24140.246.59.0/24140.246.65.0/24140.246.81.0/24140.246.83.0/24140.246.87.0/24140.246.89.0/24140.246.94.0/24140.246.96.0/24140.246.98.0/24150.223.0.0/16157.119.28.0/22182.140.138.0/24182.140.141.0/24182.42.0.0/16182.43.100.0/24182.43.102.0/23182.43.104.0/24182.43.106.0/24182.43.107.0/24182.43.108.0/24182.43.128.0/17182.43.133.0/24182.43.137.0/24182.43.141.0/24182.43.144.0/24182.43.155.0/24182.43.16.0/20182.43.165.0/24182.43.17.0/24182.43.180.0/24182.43.188.0/24182.43.192.0/19182.43.201.0/24182.43.206.0/24182.43.216.0/24182.43.217.0/24182.43.22.0/23182.43.225.0/24182.43.228.0/24182.43.232.0/24182.43.233.0/24182.43.24.0/24182.43.247.0/24182.43.32.0/19182.43.34.0/24182.43.39.0/24182.43.5.0/24182.43.51.0/24182.43.6.0/23182.43.64.0/18182.43.64.0/24182.43.73.0/24182.43.76.0/24182.43.78.0/24182.43.79.0/24182.43.8.0/21182.43.82.0/24182.43.84.0/24182.43.89.0/24182.43.90.0/24182.43.92.0/24182.43.98.0/23182.44.0.0/18182.44.112.0/21182.44.112.0/24182.44.113.0/24182.44.114.0/24182.44.115.0/24182.44.117.0/24182.44.12.0/24182.44.13.0/24182.44.14.0/24182.44.3.0/24182.44.36.0/24182.44.39.0/24182.44.41.0/24182.44.5.0/24182.44.7.0/24182.44.96.0/20202.98.194.0/23203.174.4.0/24203.176.64.0/19203.189.192.0/19203.189.203.0/24203.189.205.0/24203.189.208.0/20203.189.209.0/24203.189.218.0/24203.193.224.0/19203.195.64.0/19203.195.94.0/24203.205.64.0/19203.33.206.0/23203.33.214.0/23203.33.224.0/23203.34.152.0/23203.34.48.0/23203.34.56.0/23203.34.92.0/24203.55.10.0/24203.55.116.0/23203.55.13.0/24203.55.2.0/23203.55.22.0/24203.55.4.0/24203.56.210.0/24203.56.214.0/24203.56.227.0/24203.56.228.0/24203.56.232.0/24203.56.24.0/24203.56.240.0/24203.56.252.0/24203.56.254.0/24203.56.38.0/24203.56.4.0/24203.56.40.0/24203.56.46.0/24203.56.68.0/23203.56.82.0/23203.56.84.0/23203.56.95.0/24203.57.101.0/24203.57.109.0/24203.57.12.0/23203.57.123.0/24203.57.157.0/24203.57.200.0/24203.57.202.0/24203.57.206.0/24203.57.222.0/24203.57.224.0/20203.57.246.0/23203.57.249.0/24203.57.254.0/23203.57.28.0/24203.57.39.0/24203.57.46.0/24203.57.5.0/24203.57.58.0/24203.57.6.0/24203.57.70.0/23203.6.224.0/20203.78.48.0/20203.80.32.0/20203.80.4.0/23203.80.57.0/24203.86.254.0/23211.101.244.0/22222.86.156.0/24222.86.169.0/24223.255.252.0/24223.255.253.0/2436.111.128.0/2036.111.144.0/2036.111.144.0/2436.111.145.0/2436.111.146.0/2436.111.147.0/2436.111.152.0/2236.111.160.0/2036.111.166.0/2436.111.170.0/2436.111.172.0/2436.111.173.0/2436.111.174.0/2336.111.176.0/2036.111.177.0/2436.111.184.0/2336.111.191.0/2436.114.0.0/1642.123.103.0/2442.123.104.0/2442.123.106.0/2442.123.107.0/2442.123.108.0/2442.123.114.0/2442.123.117.0/2442.123.118.0/2442.123.120.0/2142.123.120.0/2442.123.125.0/2442.123.127.0/2442.123.64.0/1942.123.96.0/1942.187.120.0/2243.240.220.0/2245.251.100.0/2245.251.92.0/22
17 IPv6 prefixes
2407:c080:1800::/37240e:108:10::/44240e:108:23::/48240e:108:4c::/48240e:108::/44240e:109:8000::/44240e:109:8010::/44240e:40:8::/48240e:40:c::/48240e:698:1000::/36240e:698:2300::/40240e:698::/36240e:980:1000::/36240e:980:2300::/40240e:980:4c00::/40240e:980::/36240e:981:d000::/36
Registries

Each registry’s copy

RADB1 membersctyun.cn
Maintained byMAINT-ASS58519
Last modified2025-09-03T12:00:04Z
MembersAS58519
mbrs-by-refN
Tools

Check AS-CTCTYUN live

IRR API, with prefixes