CERNET2 IX at Tsinghua University
AS24348 is CERNET2 IX at Tsinghua University (cernet.edu.cn). It announces 16,384 IPv4 addresses in 10 prefixes, and 1 IPv6 prefixes.
China· APNIC· allocated 2005-03-03· education
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- China16,384 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- CNGI-BJ-IX2-AS-AP
- name
- CERNET2 IX at Tsinghua University
- country
- CN
- source
- apnic
- updated
- 2020-09-03
- descr
- CERNET2 IX at Tsinghua University / CERNET Center / Beijing 100084, China
- remarks
- Multihome member of CERNET
- maintainer
- APNIC-HM
- maintainer email
- helpdesk@apnic.net
- abuse
- AC1685-AP
- abuse name
- ABUSE CERNETAP
- abuse email
- abuse@cernet.edu.cn
- abuse phone
- +86-10-62784301
- abuse kind
- role
- admin
- CER-AP
- admin name
- CERNET Helpdesk
- admin email
- helpdesk@cernet.edu.cn
- admin phone
- +86-10-6278-5933
- admin kind
- role
- admin country
- CN
- tech
- CER-AP
- tech name
- CERNET Helpdesk
- tech email
- helpdesk@cernet.edu.cn
- tech phone
- +86-10-6278-5933
- tech kind
- role
- tech country
- CN
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- astroproxy, proxyseller, digiproxy0.10%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 0.03%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 58.206.192.0/18also AS4538 | China | not found | 16 | 2026-10-02 |
| 58.207.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 59.66.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 101.5.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 101.6.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 183.172.0.0/15also AS4538 | China | not found | 4 | 2026-10-02 |
| 183.172.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 183.173.0.0/16also AS4538 | China | not found | 4 | 2026-10-02 |
| 202.112.0.0/24also AS4538 | China | not found | 4 | 2026-10-02 |
| 202.112.61.0/24also AS4538 | China | valid | 4 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2402:7d80:240::/48also AS4538 | China | not found | 10 | 2026-10-02 |
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