International Hellenic University

Data as of 2026-11-08
BGP inherited
This organisation
Netblocks5 · 3,072 IPv4 addresses
IPv6 1 prefix (largest 2001:648:2830::/48)
Record ID265309519
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 7 shared RIR contact/maintainer handles
Registry names 3 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (5)

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CIDR Org name Registry Status Confidence
83.212.10.0/23 International Hellenic University RIPE ASSIGNED PA ● high
195.251.120.0/22 International Hellenic University BGP ANNOUNCED ● high
195.251.238.0/23 International Hellenic University BGP ANNOUNCED ● high
195.251.240.0/22 International Hellenic University BGP ANNOUNCED ● high
2001:648:2830::/48 IHU RIPE ASSIGNED ● medium

IPv6 ranges (1)

Footprint over time

12 weekly snapshots · JSON
6 0 netblocks since 2026-07-13
2026-07-13 peak 6 2026-10-18

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (5 of 5)
Possible discrepancies (2)

These blocks are registered to International Hellenic University 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.

2001:648:2830::/48 /48 authorized for AS5408 — National Infrastructures for Research and Technology S.A.
83.212.10.0/23 /23 authorized for AS5408 — National Infrastructures for Research and Technology S.A.

NIC Handles

AS5489 DUMY-RIPE DUMY-RIPE GRNET-NOC GRNET-NOC IHU8-RIPE ORG-IHU1-RIPE