AS138374 CNGI-TYN-IX-AS-AP - CERNET2 regional IX at Taiyuan University

Announced Prefixes (BGP)
127total
71 IPv456 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)140,032
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)6.7×10²⁵
Prefix Limit (IPv4)
200
Prefix Limit (IPv6)
200
Allocated
-

Routing hygiene

Score 72/100 · High risk
RPKI ROA coverage
44.1%
23 prefixes RPKI invalid
IRR route objects
0%
127 prefixes registered for another origin
Hijack signals
23
23 announced against others' ROAs, 0 own announced by others
Upstreams
2
diversity 49/100
  • Announces 23 prefixes that RPKI assigns to another network (possible hijack or misconfiguration)
  • 56% of announced prefixes (71 of 127) have no valid ROA, 23 of them RPKI invalid
  • 100% of announced prefixes (127 of 127) have no IRR route object for this ASN

Based on 127 announced prefixes, updated daily (2026-10-20). How the score works · RPKI explained

Announced Prefixes

(BGP)127
|
Prefix
RPKI
IRR
Last Seen
No ROA-2026-10-27
Invalid-2026-10-27
No ROA-2026-10-27
No ROA-2026-10-27
No ROA-2026-10-27
No ROA-2026-10-27
No ROA-2026-10-27
No ROA-2026-10-27
Invalid-2026-10-27
No ROA-2026-10-27
1-10 of 127
1 / 13

All 127 announced prefixes of AS138374 →

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS138374 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS4538China Education And Research Network Center71
  • AS23910China Next Generation Internet CERNET257
ASPA
No ASPA
External Links

Learn more

GEThttps://api.ipctl.io/v1/asn/138374

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/138374" | jq