University of Nagasaki

Data as of 2026-11-01
BGP inherited
This organisation
Netblocks24 · 1,799 IPv4 addresses
IPv6 10 prefixes (largest 2001:c40::/32)
Also registered under this name 3,775 netblocks across 494 separate records
Record ID260201236
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 4 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (24)

⬇ export CSV
CIDR Org name Registry Status Confidence
101.203.104.26/32 University of Nagasaki PEERINGDB ASSIGNED ● high
103.13.27.0/24 University of Nagasaki BGP ANNOUNCED ● high
103.180.130.0/24 University of Nagasaki BGP ANNOUNCED ● high
103.180.131.0/24 University of Nagasaki BGP ANNOUNCED ● high
103.246.232.10/32 University of Nagasaki PEERINGDB ASSIGNED ● high
202.13.70.0/24 University of Nagasaki BGP ANNOUNCED ● high
202.236.88.0/24 University of Nagasaki BGP ANNOUNCED ● high
202.236.89.0/24 University of Nagasaki BGP ANNOUNCED ● high
202.236.90.0/24 University of Nagasaki BGP ANNOUNCED ● high
210.173.177.86/32 University of Nagasaki PEERINGDB ASSIGNED ● high
210.173.184.175/32 University of Nagasaki PEERINGDB ASSIGNED ● high
210.173.188.16/32 University of Nagasaki PEERINGDB ASSIGNED ● high
218.100.9.164/32 University of Nagasaki PEERINGDB ASSIGNED ● high
218.100.9.198/32 University of Nagasaki PEERINGDB ASSIGNED ● high
2001:7fa:7:1:0:14:6979:1/128 University of Nagasaki PEERINGDB ASSIGNED ● high
2001:7fa:7:2:0:14:6979:1/128 University of Nagasaki PEERINGDB ASSIGNED ● high
2001:7fa:7:4:0:14:6979:1/128 University of Nagasaki PEERINGDB ASSIGNED ● high
2001:c40::/32 University of Nagasaki BGP ANNOUNCED ● high
2001:de8:8:6:0:14:6979:10/128 University of Nagasaki PEERINGDB ASSIGNED ● high
2001:de8:c:2:0:14:6979:1/128 University of Nagasaki PEERINGDB ASSIGNED ● high
2001:de8:c:2:0:14:6979:2/128 University of Nagasaki PEERINGDB ASSIGNED ● high
2001:de8:c:4:0:14:6979:1/128 University of Nagasaki PEERINGDB ASSIGNED ● high
2400:5320::/48 University of Nagasaki BGP ANNOUNCED ● high
2400:5320:ff00::/48 University of Nagasaki BGP ANNOUNCED ● high

IPv6 ranges (10)

CIDR
2001:c40::/32
2400:5320::/48
2400:5320:ff00::/48
2001:7fa:7:1:0:14:6979:1/128
2001:7fa:7:2:0:14:6979:1/128
2001:7fa:7:4:0:14:6979:1/128
2001:de8:8:6:0:14:6979:10/128
2001:de8:c:2:0:14:6979:1/128
2001:de8:c:2:0:14:6979:2/128
2001:de8:c:4:0:14:6979:1/128

Footprint over time

19 weekly snapshots · JSON
24 +2 netblocks since 2026-07-05
2026-07-05 peak 24 2026-11-01

Network trust

what's this?
RPKI hygiene: C how networks compare →
79.2% of checked blocks have valid RPKI ROA coverage (19 of 24)
Possible discrepancies (2)

These blocks are registered to University of Nagasaki but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2001:c40::/32 /32 authorized for AS23811 — AS23811
202.13.70.0/24 /24 authorized for AS23811 — AS23811

NIC Handles

AS146979 AS146979 AS150357 AS23811