206208 looking glass

AS4538 China Education and Research Network Center 🇨🇳 CN

Announcing 5,167 prefixes, seen at the RIS collectors.

IPv4 prefixes
5,157
42,948,608 (167,768 × /24)
IPv6 prefixes
10
265 × /48
Upstreams
14
transit providers observed
Peers
8
settlement-free adjacencies
Downstreams
14
transit customers observed
Customer cone
84
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%) 3,706 no ROA (71.7%)

Announced prefixes

5,167 in total

Prefix RPKI Peers Sample path First seen
202.116.54.0/24 v4 RPKI valid 43 237644538 2026-09-18
202.116.64.0/18 v4 no ROA 43 237644538 2026-09-18
202.116.81.0/24 v4 RPKI valid 41 3454929144538 2026-09-18
202.116.128.0/19 v4 no ROA 43 237644538 2026-09-18
202.116.192.0/19 v4 no ROA 43 237644538 2026-09-18
202.116.234.0/23 v4 no ROA 43 237644538 2026-09-18
202.116.236.0/22 v4 no ROA 43 237644538 2026-09-18
202.117.0.0/18 v4 no ROA 4 557202376441344538 2026-09-18
202.117.7.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.117.8.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.117.14.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.117.64.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.117.64.0/24 v4 RPKI valid 12 244824538 2026-09-18
202.117.71.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.117.80.0/20 v4 no ROA 42 244824538 2026-09-18
202.117.80.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.117.96.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.117.112.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.117.128.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.117.128.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.117.144.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.117.160.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.117.167.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.117.175.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.117.176.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.117.176.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.117.192.0/21 v4 no ROA 4 557202376441344538 2026-09-18
202.117.192.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.117.200.0/21 v4 no ROA 4 557202376441344538 2026-09-18
202.117.208.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.117.224.0/22 v4 no ROA 4 557202376441344538 2026-09-23
202.117.224.0/24 v4 RPKI valid 4 557202376441344538 2026-09-23
202.117.240.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.118.0.0/15 v4 no ROA 42 244824538 2026-09-18
202.118.0.0/16 v4 no ROA 41 244824538 2026-09-18
202.118.0.0/19 v4 no ROA 4 557202376441344538 2026-09-18
202.118.2.0/23 v4 no ROA 4 557202376441344538 2026-09-18
202.118.4.0/22 v4 no ROA 4 557202376441344538 2026-09-18
202.118.27.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.32.0/21 v4 no ROA 4 557202376441344538 2026-09-18
202.118.40.0/21 v4 no ROA 40 3454912994538 2026-09-18
202.118.48.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.118.61.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.64.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.118.64.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.65.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.66.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.68.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.72.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.76.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.80.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.118.87.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.88.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.96.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.118.116.0/22 v4 no ROA 4 557202376441344538 2026-09-18
202.118.120.0/21 v4 no ROA 4 557202376441344538 2026-09-18
202.118.128.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.118.160.0/21 v4 no ROA 4 557202376441344538 2026-09-18
202.118.164.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.168.0/22 v4 no ROA 4 557202376441344538 2026-09-18
202.118.168.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.169.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.171.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.176.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.118.190.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.191.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.192.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.118.198.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.208.0/20 v4 no ROA 4 557202376441344538 2026-09-18
202.118.222.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.224.0/19 v4 no ROA 4 557202376441344538 2026-09-18
202.118.238.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.118.250.0/23 v4 no ROA 4 557202376441344538 2026-09-18
202.118.252.0/22 v4 no ROA 4 557202376441344538 2026-09-18
202.119.0.0/16 v4 no ROA 47 244824538 2026-09-18
202.119.0.0/19 v4 no ROA 40 3800134914538 2026-09-18
202.119.32.0/19 v4 no ROA 44 237644538 2026-09-18
202.119.40.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.119.46.0/24 v4 RPKI valid 43 237644538 2026-09-18
202.119.50.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.119.64.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.75.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.119.80.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.81.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.119.96.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.98.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.119.108.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.119.112.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.128.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.119.129.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.119.133.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.119.134.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.136.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.144.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.160.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.165.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.119.168.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.172.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.176.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.191.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.119.192.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.208.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.224.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.119.240.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.0.0/15 v4 no ROA 48 244824538 2026-09-18
202.120.0.0/16 v4 no ROA 41 244824538 2026-09-18
202.120.0.0/17 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.0.0/18 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.0.0/19 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.0.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.1.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.2.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.7.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.14.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.19.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.31.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.32.0/19 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.43.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.64.0/20 v4 no ROA 13 244824538 2026-09-18
202.120.80.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.108.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.111.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.112.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.112.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.118.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.125.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.126.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.127.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.128.0/17 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.128.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.144.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.146.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.160.0/20 v4 no ROA 13 244824538 2026-09-18
202.120.176.0/20 v4 no ROA 40 244824538 2026-09-18
202.120.192.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.200.0/22 v4 no ROA 42 244824538 2026-09-18
202.120.200.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.202.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.208.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.209.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.215.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.224.0/19 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.224.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.224.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.234.0/24 v4 RPKI valid 12 244824538 2026-09-18
202.120.235.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.120.240.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.120.247.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.121.0.0/16 v4 no ROA 41 244824538 2026-09-18
202.121.0.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.16.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.17.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.121.20.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.28.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.32.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.48.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.49.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.121.63.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.121.64.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.80.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.96.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.96.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.112.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.112.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.128.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.128.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.121.148.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.150.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.121.160.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.160.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.121.168.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.176.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.176.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.180.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.184.0/24 v4 RPKI valid 42 244824538 2026-09-18
202.121.192.0/20 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.192.0/21 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.208.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.121.224.0/20 v4 no ROA 41 3454929144538 2026-09-18
202.121.240.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.241.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.121.244.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.246.0/23 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.121.252.0/22 v4 no ROA 1 443933571010099992948374538 2026-09-18
202.127.224.0/19 v4 no ROA 47 244824538 2026-09-18
202.127.232.0/21 v4 no ROA 42 3454964534538 2026-09-18
202.127.232.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.127.233.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.127.237.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.127.239.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.127.240.0/20 v4 no ROA 42 3454964534538 2026-09-18
202.127.242.0/24 v4 RPKI valid 12 244824538 2026-09-18
202.127.245.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.127.247.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.127.250.0/24 v4 RPKI valid 1 443933571010099992948374538 2026-09-18
202.127.254.0/24 v4 RPKI valid 4 557202376441344538 2026-09-18
202.179.240.0/20 v4 no ROA 12 244824538 2026-09-18
202.192.0.0/12 v4 no ROA 48 244824538 2026-09-18
202.192.0.0/13 v4 no ROA 14 244824538 2026-09-18
202.192.0.0/15 v4 no ROA 48 244824538 2026-09-18
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