Research Organization of Information and Systems, National Institute of Informatics
Cluster stats
Netblocks611
All fragments 1,005 blocks across 39 clusters
Cluster ID191593478
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 2 shared RIR contact/maintainer handles
Registry names 1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

2 weekly snapshots · JSON
611 0 netblocks since 2026-07-05
2026-07-05 peak 611 2026-07-06

IP Ranges (611)

showing 50 of 611 — see all⬇ export CSV (free export limited to 500 rows — subscribe for the full export)
CIDR Org name Registry Status Confidence
103.164.74.0/23 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
103.164.166.0/23 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
103.164.168.0/23 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
103.180.128.0/23 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
130.34.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
130.153.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
131.206.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.7.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.8.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.10.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.12.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.14.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.15.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.16.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.17.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.17.7.0/24 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.17.10.0/24 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.20.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.21.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.23.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.29.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.30.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.32.100.0/22 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.34.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.35.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.37.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.38.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.39.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.44.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.45.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.46.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.46.248.0/21 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.48.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.49.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.52.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.54.0.0/18 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.54.64.0/21 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.54.76.0/24 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.54.77.0/24 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.54.78.0/23 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.54.80.0/20 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.54.96.0/19 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.54.128.0/17 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.55.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.57.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.58.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.60.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.62.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.63.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high
133.65.0.0/16 Research Organization of Information and Systems, National Institute of Informatics BGP ANNOUNCED ● high

Network trust

what's this?
RPKI hygiene: F how networks compare →
6.5% of checked blocks have valid RPKI ROA coverage (40 of 611)
No discrepancies found among checked blocks.

NIC Handles

AS24287 AS2907