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Data: RIPE NCC, ARIN, APNIC, LACNIC, AFRINIC delegated statistics · CAIDA · RIPEstat · World Bank.

Last sync: 2026-06-26 05:14 UTC · refreshed daily

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AS45576 CERNET2-TSINGHUA6-AS-AP - Tsinghua University

China · Autonomous System

IPv4 announced

0.00 × /8

IPv6 announced

65.5K

/48 blocks

Prefixes

routed

Country

China

Interconnection (PeeringDB)

Where this network meets others — public exchange points, colocation facilities, and declared peering capacity.

Internet exchanges

IXPs present

Facilities

colocation facilities

Peering capacity

—

no peering ports listed

Network type

Education / research

Scope: Asia Pacific

Routing hygiene & RPKI

How well this network secures and documents its BGP announcements — RPKI origin validation, IRR registration, and an overall hygiene score.

Hygiene score

0–100 · RPKI × IRR × consistency

RPKI coverage

0 of 65.5K routed addrs valid

RPKI invalid

no invalid prefixes

IRR registered

25%

1 of 4 prefixes documented

Announcement composition4 routed prefixes

Announced prefixes

Currently announced prefixes, live from RIPEstat.

4 prefixes currently seen by RIPEstat.

2402:f000:2::/482402:f000:3::/482402:f000::/322402:f000:4::/48

Fetching announced prefixes from RIPEstat…

IRR registered only 25.0%

Unregistered 75.0%

RPKI by address family

ipv6RPKI 0%

0 valid0 invalid4 not found0 / 65.5K addrs

4 prefixes currently seen by RIPEstat.

2402:f000:2::/482402:f000:3::/482402:f000::/322402:f000:4::/48