ISUMO Ltd
BGP inherited
Cluster stats
| Netblocks | 9 · 8,704 IPv4 addresses |
| Registered in | United Kingdom (6) · Netherlands (2) |
| All fragments | 12 blocks across 3 clusters |
| Cluster ID | 209970465 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 11 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
9
0 netblocks since 2026-07-05
2026-07-05
peak 9
2026-07-19
IP Ranges (9)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 37.77.192.0/21 | ISUMO Ltd | BGP | ANNOUNCED | ● high |
| 37.123.248.0/21 | ISUMO Ltd | BGP | ANNOUNCED | ● high |
| 193.104.81.0/24 | ISUMO Ltd | BGP | ANNOUNCED | ● high |
| 37.77.192.0/21 | ISUMO Ltd | RIPE | ALLOCATED PA | ● low |
| 37.123.248.0/21 | ISUMO Ltd | RIPE | ALLOCATED PA | ● low |
| 193.104.81.0/24 | ISUMO Ltd | RIPE | ASSIGNED PI | ● low |
| 213.168.241.44/30 | ISUMO | RIPE | ASSIGNED PA | ● low |
| 217.68.19.12/30 | ISUMO | RIPE | ASSIGNED PA | ● low |
| 2a00:ce40::/32 | ISUMO Ltd | RIPE | ALLOCATED-BY-RIR | ● low |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
88.9%
of checked blocks have valid RPKI ROA coverage
(8 of 9)
No discrepancies found among checked blocks.
NIC Handles
AS198623
DUMY-RIPE
DUMY-RIPE
EQUINIX-MNT
IO87256-MNT
ISUMO-MNT
ISUMO-MNT
ISUMO-RR-MNT
ORG-iL246-RIPE
RIPE-NCC-END-MNT
RIPE-NCC-HM-MNT