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

Last sync: 2026-07-24 05:14 UTC · refreshed daily

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AS213471 IPPNOC YAMAMOTO Hiroshi

Japan · Autonomous System

IPv4 announced

0.00 × /8

IPv6 announced

145

/48 blocks

Prefixes

routed

Country

Japan

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

2.0 Gbps

aggregate IX port capacity

Network type

Education / research

Scope: Global

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 145 routed addrs valid

RPKI invalid

no invalid prefixes

IRR registered

29%

2 of 7 prefixes documented

Announcement composition7 routed prefixes

Announced prefixes

Currently announced prefixes, live from RIPEstat.

9 prefixes currently seen by RIPEstat.

2a06:41:50::/442a06:41:30::/442a06:41:80::/422a0b:4e07:d7::/482a06:41::/442a06:41:10::/442a06:41:20::/442a0b:4e07:d4::/482a06:41:c0::/44

Fetching announced prefixes from RIPEstat…

IRR registered only 28.6%Unregistered 71.4%

RPKI by address family

ipv6RPKI 0%

0 valid0 invalid7 not found0 / 145 addrs

9 prefixes currently seen by RIPEstat.

2a06:41:50::/442a06:41:30::/442a06:41:80::/422a0b:4e07:d7::/482a06:41::/442a06:41:10::/442a06:41:20::/442a0b:4e07:d4::/482a06:41:c0::/44