206208 looking glass

AS4538 China Education and Research Network Center 🇨🇳 CN

Announcing 5,166 prefixes, seen at the RIS collectors.

IPv4 prefixes
5,156
42,948,352 (167,767 × /24)
IPv6 prefixes
10
265 × /48
Upstreams
14
transit providers observed
Peers
8
settlement-free adjacencies
Downstreams
14
transit customers observed
Customer cone
85
ASes reachable through it

Registry and operator data

AS number
AS4538
Name
China Education and Research Network Center
Organisation
CERNET-CN
Country
🇨🇳 CN
RIR
APNIC
Allocated
2002-08-01
Network type
Educational/Research
Scope
Not Disclosed
Peering policy
Open
Website
http://www.edu.cn
PeeringDB
net/13851

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

1,459 valid (28.2%) 2 invalid (0.0%) 3,705 no ROA (71.7%)

Announced prefixes

5,166 in total

Prefix RPKI Peers Sample path First seen
122.206.112.0/21 v4 no ROA 4 557202376441344538 2026-09-18
122.206.120.0/21 v4 no ROA 4 557202376441344538 2026-09-18
122.206.144.0/20 v4 no ROA 4 557202376441344538 2026-09-18
122.206.160.0/19 v4 no ROA 4 557202376441344538 2026-09-18
122.206.192.0/19 v4 no ROA 4 557202376441344538 2026-09-18
122.206.224.0/19 v4 no ROA 4 557202376441344538 2026-09-18
122.207.0.0/23 v4 no ROA 4 557202376441344538 2026-09-18
122.207.2.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
122.207.16.0/20 v4 no ROA 4 557202376441344538 2026-09-18
122.207.32.0/19 v4 no ROA 4 557202376441344538 2026-09-18
122.207.64.0/18 v4 no ROA 4 557202376441344538 2026-09-18
122.207.128.0/19 v4 no ROA 4 557202376441344538 2026-09-18
122.207.160.0/19 v4 no ROA 4 557202376441344538 2026-09-18
122.207.192.0/20 v4 no ROA 4 557202376441344538 2026-09-18
122.207.208.0/20 v4 no ROA 4 557202376441344538 2026-09-18
125.216.0.0/13 v4 no ROA 49 244824538 2026-09-18
125.216.0.0/15 v4 no ROA 49 244824538 2026-09-18
125.216.0.0/16 v4 no ROA 44 244824538 2026-09-18
125.216.0.0/22 v4 no ROA 44 237644538 2026-09-18
125.216.4.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.6.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.8.0/21 v4 no ROA 44 237644538 2026-09-18
125.216.16.0/22 v4 no ROA 44 237644538 2026-09-18
125.216.20.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.22.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.23.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.24.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.26.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.28.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.30.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.32.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.34.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.36.0/22 v4 no ROA 44 237644538 2026-09-18
125.216.40.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.44.0/22 v4 no ROA 44 237644538 2026-09-18
125.216.48.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.52.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.216.56.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.216.58.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.60.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.61.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.62.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.216.64.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.65.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.66.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.80.0/20 v4 no ROA 44 237644538 2026-09-18
125.216.96.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.216.100.0/22 v4 no ROA 44 237644538 2026-09-18
125.216.104.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.105.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.108.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.110.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.112.0/20 v4 no ROA 44 237644538 2026-09-18
125.216.133.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.134.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.135.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.216.136.0/21 v4 no ROA 44 237644538 2026-09-18
125.216.144.0/20 v4 no ROA 44 237644538 2026-09-18
125.216.146.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.160.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.161.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.216.162.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.216.164.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.166.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.168.0/23 v4 no ROA 44 237644538 2026-09-18
125.216.176.0/22 v4 no ROA 44 237644538 2026-09-18
125.216.180.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.216.181.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.182.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.216.183.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.216.192.0/20 v4 no ROA 44 237644538 2026-09-18
125.216.208.0/20 v4 no ROA 44 237644538 2026-09-18
125.216.224.0/19 v4 no ROA 13 244824538 2026-09-18
125.217.0.0/16 v4 no ROA 44 244824538 2026-09-18
125.217.0.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.217.1.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.217.2.0/23 v4 no ROA 43 3454964534538 2026-09-18
125.217.4.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.217.32.0/19 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.217.64.0/19 v4 no ROA 42 3454964534538 2026-09-18
125.217.96.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.217.112.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.217.120.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.217.128.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.217.130.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.217.132.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.217.133.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.217.134.0/23 v4 no ROA 44 237644538 2026-09-18
125.217.136.0/22 v4 no ROA 44 237644538 2026-09-18
125.217.140.0/23 v4 no ROA 44 237644538 2026-09-18
125.217.142.0/23 v4 no ROA 44 237644538 2026-09-18
125.217.144.0/22 v4 no ROA 44 237644538 2026-09-18
125.217.148.0/23 v4 no ROA 44 237644538 2026-09-18
125.217.152.0/21 v4 no ROA 44 237644538 2026-09-18
125.217.160.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.217.192.0/20 v4 no ROA 44 237644538 2026-09-18
125.217.208.0/21 v4 no ROA 44 237644538 2026-09-18
125.217.216.0/21 v4 no ROA 44 237644538 2026-09-18
125.217.224.0/21 v4 no ROA 44 244824538 2026-09-18
125.217.232.0/21 v4 no ROA 44 244824538 2026-09-18
125.217.240.0/20 v4 no ROA 44 244824538 2026-09-18
125.218.0.0/16 v4 no ROA 44 244824538 2026-09-18
125.218.0.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.4.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.8.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.10.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.12.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.218.13.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.218.14.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.16.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.18.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.20.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.22.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.24.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.28.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.218.30.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.32.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.36.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.40.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.48.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.54.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.56.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.60.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.64.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.69.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.218.70.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.218.72.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.76.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.80.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.82.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.84.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.86.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.88.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.92.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.94.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.96.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.98.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.100.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.102.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.104.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.106.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.108.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.110.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.112.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.114.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.116.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.118.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.120.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.122.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.124.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.126.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.128.0/21 v4 no ROA 44 237644538 2026-09-18
125.218.136.0/22 v4 no ROA 44 237644538 2026-09-18
125.218.140.0/23 v4 no ROA 44 237644538 2026-09-18
125.218.142.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.218.143.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.218.144.0/20 v4 no ROA 44 237644538 2026-09-18
125.218.160.0/20 v4 no ROA 44 237644538 2026-09-18
125.218.176.0/23 v4 no ROA 44 237644538 2026-09-18
125.218.178.0/23 v4 no ROA 44 237644538 2026-09-18
125.218.180.0/24 v4 RPKI valid 44 237644538 2026-09-18
125.218.182.0/23 v4 no ROA 44 237644538 2026-09-18
125.218.184.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.218.185.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.218.186.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
125.218.188.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.218.189.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
125.218.192.0/19 v4 no ROA 44 237644538 2026-09-18
125.218.224.0/20 v4 no ROA 44 237644538 2026-09-18
125.219.0.0/19 v4 no ROA 4 557202376441344538 2026-09-18
125.219.32.0/20 v4 no ROA 4 557202376441344538 2026-09-18
125.219.48.0/20 v4 no ROA 4 557202376441344538 2026-09-18
125.219.64.0/19 v4 no ROA 4 557202376441344538 2026-09-18
125.219.96.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.100.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.104.0/21 v4 no ROA 4 557202376441344538 2026-09-18
125.219.108.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.112.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.116.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.120.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.124.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.128.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.132.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.136.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.140.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.144.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.148.0/23 v4 no ROA 4 557202376441344538 2026-09-18
125.219.150.0/23 v4 no ROA 4 557202376441344538 2026-09-18
125.219.152.0/23 v4 no ROA 4 557202376441344538 2026-09-18
125.219.154.0/23 v4 no ROA 4 557202376441344538 2026-09-18
125.219.158.0/23 v4 no ROA 4 557202376441344538 2026-09-18
125.219.160.0/23 v4 no ROA 4 557202376441344538 2026-09-18
125.219.162.0/23 v4 no ROA 4 557202376441344538 2026-09-18
125.219.164.0/23 v4 no ROA 4 557202376441344538 2026-09-18
125.219.166.0/23 v4 no ROA 4 557202376441344538 2026-09-18
125.219.168.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.172.0/22 v4 no ROA 4 557202376441344538 2026-09-18
125.219.176.0/20 v4 no ROA 4 557202376441344538 2026-09-18
125.219.192.0/20 v4 no ROA 4 557202376441344538 2026-09-18
125.220.0.0/19 v4 no ROA 44 237644538 2026-09-18
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