AS45576 CERNET2-TSINGHUA6-AS-AP - Tsinghua University
🇨🇳Org handle: A91E5D61
Tsinghua University
APNICallocated
Announced Prefixes (BGP)
6total
0 IPv46 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)0
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Routing hygiene
Score 45/100 · Medium riskRPKI ROA coverage
0%
no RPKI invalid prefixes
IRR route objects
66.7%
2 prefixes registered for another origin
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
1
diversity 0/100
- 100% of announced prefixes (6 of 6) have no valid ROA
- Only one upstream seen in the AS paths of its routes
- 33% of announced prefixes (2 of 6) have no IRR route object for this ASN
Based on 6 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained
Announced Prefixes
(BGP)6|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | APNIC | - | |
| No ROA | - | - | |
| No ROA | - | - | |
| No ROA | - | - | |
| No ROA | - | - | |
| No ROA | - | - |
Allocated Prefixes
(RIR)1Prefix | Country | RIR | Status |
|---|---|---|---|
| 2402:f000::/32 | 🇨🇳 CN | APNIC | allocated |
All 6 announced prefixes of AS45576 →
Downstream Customers(1)
| ASN | Name |
|---|---|
| AS209300 | 🇨🇳TWD2-NET Wende Tan |
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS45576 hands its own prefixes to: transit providers, or peers at an exchange.
- AS24348CERNET2 IX At Tsinghua University6
Downstreams (1)
Networks whose own prefixes AS45576 passes on: usually its customers.
- AS209300TWD2 NET Wende Tan1
Other adjacent networks (1)
Adjacent to AS45576 in the transit part of AS paths: peers, providers or customers.
- AS24239TWD2 Education And Research Network1
Abuse Contact
+86-10-62784301
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- How to run an ASPA checkVerify the upstream providers listed above
- IPv4 transfers in the APNIC regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/45576Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/45576" | jq