University of Bradford
Data as of 2026-08-23
BGP inherited
Cluster stats
| Netblocks | 5 · 65,552 IPv4 addresses |
| IPv6 | 2 prefixes (largest 2a00:2381:1ec4::/48) |
| All fragments | 3,655 blocks across 488 clusters |
| Cluster ID | 227015737 |
| Registry | RIPE |
| Customers | find 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 · report an issue | |
IP Ranges (5)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 143.53.0.0/16 | University of Bradford | RIPE | LEGACY | ● high |
| 62.253.39.96/29 | UNIVERSITY-OF-BRADFORD | RIPE | ASSIGNED PA | ● low |
| 217.33.205.88/29 | UNIVERSITY-OF-BRADFORD | RIPE | ASSIGNED PA | ● low |
| 2a00:2381:1ec4::/48 | UNIVERSITY-OF-BRADFORD | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a00:2381:1ec4::/56 | UNIVERSITY-OF-BRADFORD | RIPE | ASSIGNED | ● low |
IPv6 ranges (2)
Domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: B
how networks compare →
80.0%
of checked blocks have valid RPKI ROA coverage
(4 of 5)
Possible discrepancies (2)
These blocks are registered to University of Bradford 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.
| 2a00:2381:1ec4::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
| 2a00:2381:1ec4::/56 /56 | authorized for AS2856 — British Telecommunications Limited |
NIC Handles
AS5089-MNT
BTNET-MNT
DUMY-RIPE
DUMY-RIPE
JANET-HOSTMASTER
ORG-UOB23-RIPE
RIPE-NCC-LEGACY-MNT