Sainsburys
Registry
Cluster stats
| Netblocks | 7 |
| All fragments | 8 blocks across 2 clusters |
| Cluster ID | 209009272 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | Registry record |
| Shared handles | clustered on 3 shared RIR contact/maintainer handles |
| Registry names | 3 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 |
|---|---|---|---|---|
| 81.144.228.152/29 | SAINSBURYS-PLC | RIPE | ASSIGNED PA | ● low |
| 217.34.65.72/29 | Sainsburys | RIPE | ASSIGNED PA | ● low |
| 217.34.65.104/29 | Sainsburys | RIPE | ASSIGNED PA | ● low |
| 217.34.65.112/29 | Sainsburys | RIPE | ASSIGNED PA | ● low |
| 2a00:2381:c5b::/48 | SAINSBURYS | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a00:2381:c5b:100::/56 | SAINSBURYS-PLC | RIPE | ASSIGNED | ● low |
| 2a00:2381:ff7e::/48 | SAINSBURYS | RIPE | AGGREGATED-BY-LIR | ● low |
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 Sainsburys 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:ff7e::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
| 2a00:2381:c5b::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
| 2a00:2381:c5b:100::/56 /56 | authorized for AS2856 — British Telecommunications Limited |
NIC Handles
BTNET-MNT
DUMY-RIPE
DUMY-RIPE