UP Cnet

UPCNET
Data as of 2026-07-26
Registry
Cluster stats
Netblocks8 · 66,968 IPv4 addresses
IPv6 2 prefixes (largest 2001:40b0:7500::/48)
Cluster ID214618323
RegistryRIPE
Customersfind customers using this network →
Evidence & provenance ?
Attribution Registry record
Shared handles clustered on 7 shared RIR contact/maintainer handles
Registry names 5 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
8 0 netblocks since 2026-07-05
2026-07-05 peak 8 2026-07-26

IP Ranges (8)

⬇ export CSV
CIDR Org name Registry Status Confidence
147.83.0.0/16 Universitat Politecnica de Catalunya RIPE LEGACY ● high
84.88.81.0/25 UPCNET RIPE ASSIGNED PA ● low
195.77.8.0/24 UPCNET RIPE ASSIGNED PA ● low
195.235.65.208/29 upcnet RIPE ASSIGNED PA ● low
212.31.47.144/28 UPCNET-NET RIPE ASSIGNED PA ● low
213.4.52.0/22 UPCNET RIPE ASSIGNED PA ● low
2001:40b0:7500::/48 UPCNET RIPE ASSIGNED ● low
2001:40b0:7c06::/48 UPCnet RIPE ASSIGNED ● low

IPv6 ranges (2)

CIDR
2001:40b0:7500::/48
2001:40b0:7c06::/48

Domains hosted in this network

what's this?
upc.edu

Network trust

what's this?
RPKI hygiene: B how networks compare →
87.5% of checked blocks have valid RPKI ROA coverage (7 of 8)
Possible discrepancies (4)

These blocks are registered to UP Cnet but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2001:40b0:7500::/48 /48 authorized for AS13041 — Consorci de Serveis Universitaris de Catalunya
2001:40b0:7c06::/48 /48 authorized for AS13041 — Consorci de Serveis Universitaris de Catalunya
213.4.52.0/22 /22 authorized for AS3352 — TELEFONICA DE ESPANA S.A.U.
195.77.8.0/24 /24 authorized for AS3352 — TELEFONICA DE ESPANA S.A.U.

NIC Handles

CESCA-MNT DUMY-RIPE DUMY-RIPE FERRI-JF8827 MAINT-AS3352 ORG-UA315-RIPE RIPE-NCC-LEGACY-MNT