Home / ASNs / AS131981

AS131981 JP Takushoku University

Updated 22.10.2026 00:14 UTC
JP Japan 6 IPv4 0 IPv6 2 Neighbors 2 Upstreams 0 Downstreams 0 Peering

AS Info

Organization
Takushoku University
Country
JP Japan
Last seen in BGP
22.10.2026 00:05 UTC

RPKI

0 ROA
Valid 0 Invalid 0 No ROA 6

Prefix locations

  • JP Japan 6

External links

PeeringDB RIPEstat bgp.tools Hurricane Electric IRR Explorer JSON API
Neighbors as seen from AS208972, thicker lines carry more routes. UpstreamsAS131981Downstreams
#ASNameRelationRoutesShare
1 AS2907 JP National Institute of Informatics Upstream 4
2 AS2497 JP Internet Initiative Japan Upstream 2
None seen in the routing table.
None seen in the routing table.
#ASNameRelationRoutesShare
1 AS2907 JP National Institute of Informatics Upstream 4
2 AS2497 JP Internet Initiative Japan Upstream 2
PrefixDescriptionLocationRPKIPaths
133.36.0.0/17 Japan Network Information Center JP Hachiōji No ROA 1
133.36.0.0/18 Japan Network Information Center JP Hachiōji No ROA 1
133.36.64.0/18 Japan Network Information Center JP Hachiōji No ROA 1
133.36.128.0/17 Japan Network Information Center JP Hachiōji No ROA 1
133.36.128.0/18 Japan Network Information Center JP Hachiōji No ROA 1
133.36.192.0/18 Japan Network Information Center JP Hachiōji No ROA 1
No prefixes announced.