AS131490 CERT-Cor - CERNET Corporation
Announced Prefixes (BGP)
4total
2 IPv42 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)512
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)7.9×10²⁸
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
10
Allocated
-
Routing hygiene
Score 33/100 · Medium riskRPKI ROA coverage
75%
no RPKI invalid prefixes
IRR route objects
0%
4 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 (4 of 4) have no IRR route object for this ASN
- Only one upstream seen in the AS paths of its routes
- 25% of announced prefixes (1 of 4) have no valid ROA
Based on 4 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained
Announced Prefixes
(BGP)4|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
101.4.156.0/24MOAS | Valid | - | 2026-10-24 |
211.68.122.0/24MOAS | Valid | - | 2026-10-24 |
| No ROA | - | 2026-10-24 | |
240c:c0a1::/32MOAS | Valid | - | 2026-10-24 |
All 4 announced prefixes of AS131490 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS131490 hands its own prefixes to: transit providers, or peers at an exchange.
- AS24348CERNET2 IX At Tsinghua University10
ASPA
No ASPA
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
- ASPA explainedWhy AS131490 should publish an ASPA object
- IPv4 transfer marketTransfers published by all five RIRs
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/131490Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/131490" | jq