URJC

Data as of 2026-07-26
BGP inherited
Cluster stats
Netblocks17 · 17,664 IPv4 addresses
IPv6 1 prefix (largest 2001:720:45c::/48)
Cluster ID214651869
RegistryRIPE
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 4 shared RIR contact/maintainer handles
Registry names 1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
17 0 netblocks since 2026-07-05
2026-07-05 peak 17 2026-07-26

IP Ranges (17)

⬇ export CSV
CIDR Org name Registry Status Confidence
193.147.4.0 – 193.147.15.255 URJC RIPE ASSIGNED PA ● low
193.147.48.0 – 193.147.50.255 URJC RIPE ASSIGNED PA ● low
193.147.51.0 – 193.147.53.255 URJC RIPE ASSIGNED PA ● low
193.147.54.0 – 193.147.56.255 URJC RIPE ASSIGNED PA ● low
193.147.57.0 – 193.147.61.255 URJC RIPE ASSIGNED PA ● low
193.147.62.0/24 URJC RIPE ASSIGNED PA ● low
193.147.63.0 – 193.147.67.255 URJC RIPE ASSIGNED PA ● low
193.147.68.0/22 URJC RIPE ASSIGNED PA ● low
193.147.72.0 – 193.147.76.255 URJC RIPE ASSIGNED PA ● low
193.147.77.0 – 193.147.79.255 URJC RIPE ASSIGNED PA ● low
193.147.184.0/24 URJC RIPE ASSIGNED PA ● low
212.128.0.0/21 URJC RIPE ASSIGNED PA ● low
212.128.240.0/22 URJC RIPE ASSIGNED PA ● low
212.128.244.0 – 212.128.246.255 URJC RIPE ASSIGNED PA ● low
212.128.247.0 – 212.128.253.255 URJC RIPE ASSIGNED PA ● low
212.128.254.0/23 URJC RIPE ASSIGNED PA ● low
2001:720:45c::/48 URJC RIPE ASSIGNED ● low

IPv6 ranges (1)

CIDR
2001:720:45c::/48

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (17 of 17)
No discrepancies found among checked blocks.

NIC Handles

DUMY-RIPE DUMY-RIPE IRIS5-RIPE REDIRIS-NMC