University of Birmingham

BGP inherited
Cluster stats
Netblocks7 · 65,571 IPv4 addresses
All fragments 10 blocks across 3 clusters
Cluster ID208883375
RegistryRIPE
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 7 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

5 weekly snapshots · JSON
7 0 netblocks since 2026-07-05
2026-07-05 peak 7 2026-07-19

IP Ranges (7)

⬇ export CSV
CIDR Org name Registry Status Confidence
147.188.0.0/16 University of Birmingham RIPE LEGACY ● high
80.195.107.16/29 UNIVERSITY-OF-BIRMINGHAM RIPE ASSIGNED PA ● low
86.188.232.104/29 UNIVERSITY-OF-BIRMINGHAM RIPE ASSIGNED PA ● low
194.168.162.16/28 UNIVERSITY-OF-BIRMINGHAM RIPE ASSIGNED PA ● low
213.104.155.144/29 UNIVERSITY-OF-BIRMINGHAM RIPE ASSIGNED PA ● low
2a00:2381:e859::/48 UNIVERSITY-OF-BIRMINGHAM RIPE AGGREGATED-BY-LIR ● low
2a00:2381:e859::/56 UNIVERSITY-OF-BIRMINGHAM RIPE ASSIGNED ● low

Domains hosted in this network

what's this?
bham.ac.uk

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (7 of 7)
Possible discrepancies (3)

These blocks are registered to University of Birmingham 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.

2a00:2381:e859::/48 /48 authorized for AS2856 — British Telecommunications Limited
2a00:2381:e859::/56 /56 authorized for AS2856 — British Telecommunications Limited
147.188.0.0/16 /16 authorized for AS786 — Jisc Services Limited

NIC Handles

AS5089-MNT BTNET-MNT DUMY-RIPE DUMY-RIPE JANET-HOSTMASTER ORG-UOB21-RIPE RIPE-NCC-LEGACY-MNT