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Japan · Autonomous System
The network's position in the inter-domain routing hierarchy: its customer cone, connectivity, and transit role.
Inferred AS-level relationships: 1 upstream providers, 0 peers and 0 downstream customers. The graph shows the largest few of each; the lists link through.
exchange traffic directly
None recorded.
buy transit from it
None recorded.
Relationships are inferred from BGP by CAIDA and refreshed monthly. Transit links are well captured; some private and IXP peering is under-observed, so peer counts are a lower bound.
How well this network secures and documents its BGP announcements — RPKI origin validation, IRR registration, and an overall hygiene score.
Measured share of this network's users reaching the Internet over IPv6 (APNIC end-user measurement, Japan).
Has working IPv6 connectivity, even if it isn't always chosen.
IPv6 wins when a destination is dual-stacked — the real-world usage rate.
Currently announced prefixes, live from RIPEstat.
37 prefixes currently seen by RIPEstat.
221.121.192.0/20220.213.192.0/19117.18.208.0/20221.121.240.0/20220.208.224.0/19218.216.192.0/18202.137.184.0/21221.121.224.0/20103.1.244.0/22158.199.64.0/19202.168.216.0/21122.49.232.0/21122.49.240.0/20202.45.168.0/21203.174.192.0/19211.15.0.0/19202.86.240.0/21219.113.48.0/20103.210.84.0/22219.124.192.0/19202.170.176.0/20221.121.208.0/20123.255.192.0/2149.128.16.0/21119.10.184.0/21202.79.128.0/19219.101.0.0/19116.58.144.0/20218.40.64.0/2049.242.128.0/19158.199.96.0/21119.82.160.0/19116.12.0.0/19219.100.104.0/22158.199.104.0/21203.223.180.0/22123.176.48.0/21