Overview Networks Topology Countries Transfers RPKI Hygiene Rankings Hypergiants Per-capita Lookup Changelog Methodology

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

Last sync: 2026-06-08 03:01 UTC · refreshed daily

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AS199436 A-NET BangLong Yang

Japan · Autonomous System

IPv4 announced

0.00 × /8

IPv6 announced

288

/48 blocks

Prefixes

routed

Country

Japan

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

95%

273 of 288 routed addrs valid

RPKI invalid

no invalid prefixes

IRR registered

14%

2 of 14 prefixes documented

Announcement composition14 routed prefixes

RPKI valid only 21.4%IRR registered only 7.1%Unregistered 64.3%IRR origin mismatch 7.1%

RPKI by address family

ipv6RPKI 95%

3 valid0 invalid11 not found273 / 288 addrs

Announced prefixes

Currently announced prefixes, live from RIPEstat.

14 prefixes currently seen by RIPEstat.

2a13:b487:1bb2::/482602:f864:f14::/472406:840:9990::/442602:f864:f05::/482602:f864:f04::/482602:f864:f12::/472406:840:9991::/482602:f864:f04::/472602:f864:f15::/482602:f864:f14::/482a13:b487:1b00::/402a14:c380:22::/482602:f864:f02::/472400:e3e0:abb2::/48

Fetching announced prefixes from RIPEstat…

14 prefixes currently seen by RIPEstat.