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

Last sync: 2026-06-28 05:14 UTC · refreshed daily

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AS208618 CYY-AS Yangyu Chen

China · Autonomous System

IPv4 announced

0.00 × /8

IPv6 announced

/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

89%

32 of 36 routed addrs valid

RPKI invalid

no invalid prefixes

IRR registered

33%

2 of 6 prefixes documented

Announcement composition6 routed prefixes

Announced prefixes

Currently announced prefixes, live from RIPEstat.

6 prefixes currently seen by RIPEstat.

2a0e:aa06:470::/442406:840:f990::/442406:840:f990::/482406:840:f991::/482a0e:aa06:470::/482a0e:aa06:471::/48

Fetching announced prefixes from RIPEstat…

Clean (RPKI valid + IRR match) 16.7%RPKI valid only 16.7%IRR registered only 16.7%Unregistered 50.0%

RPKI by address family

ipv6RPKI 89%

2 valid0 invalid4 not found32 / 36 addrs

6 prefixes currently seen by RIPEstat.

2a0e:aa06:470::/442406:840:f990::/442406:840:f990::/482406:840:f991::/482a0e:aa06:470::/482a0e:aa06:471::/48