SERCO LTD
SERCO-LTD
Data as of 2026-07-26
Registry
Cluster stats
| Netblocks | 27 · 288 IPv4 addresses |
| IPv6 | 1 prefix (largest 2a00:2381:6a:2f00::/56) |
| Registered in | United Kingdom (24) · France (1) · Netherlands (1) |
| All fragments | 66 blocks across 25 clusters |
| Cluster ID | 214613274 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | Registry record |
| Shared handles | clustered on 9 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
6 weekly snapshots · JSON
27
0 netblocks since 2026-07-05
2026-07-05
peak 27
2026-07-26
IP Ranges (27)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 62.254.108.64/28 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 62.255.139.248/29 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 80.193.118.232/29 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 81.108.106.144/29 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 81.142.67.72/29 | SERCO | RIPE | ASSIGNED PA | ● low |
| 81.142.100.152/29 | Serco | RIPE | ASSIGNED PA | ● low |
| 81.142.100.160/29 | Serco | RIPE | ASSIGNED PA | ● low |
| 81.142.100.168/29 | Serco | RIPE | ASSIGNED PA | ● low |
| 81.142.100.176/29 | Serco | RIPE | ASSIGNED PA | ● low |
| 81.143.121.112/29 | Serco | RIPE | ASSIGNED PA | ● low |
| 81.144.162.232/29 | SERCO | RIPE | ASSIGNED PA | ● low |
| 81.150.210.112/28 | Serco | RIPE | ASSIGNED PA | ● low |
| 82.36.5.0/29 | SERCO | RIPE | ASSIGNED PA | ● low |
| 93.20.239.228/30 | SERCO | RIPE | ASSIGNED PA | ● low |
| 193.240.106.24/30 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 193.240.179.160/27 | SERCO | RIPE | ASSIGNED PA | ● low |
| 193.240.182.96/29 | SERCO | RIPE | ASSIGNED PA | ● low |
| 193.240.202.0/28 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 194.168.100.64/28 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 195.188.16.40/29 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 195.188.217.16/29 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 212.136.201.152/29 | SERCO | RIPE | ASSIGNED PA | ● low |
| 213.104.99.192/27 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 213.107.109.32/29 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 217.36.53.160/28 | Serco | RIPE | ASSIGNED PA | ● low |
| 217.137.166.112/29 | SERCO-LTD | RIPE | ASSIGNED PA | ● low |
| 2a00:2381:6a:2f00::/56 | SERCO | RIPE | ASSIGNED | ● low |
IPv6 ranges (1)
Network trust
what's this?
RPKI hygiene: B
how networks compare →
81.5%
of checked blocks have valid RPKI ROA coverage
(22 of 27)
Possible discrepancies (1)
These blocks are registered to SERCO-LTD 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.
| 2a00:2381:6a:2f00::/56 /56 | authorized for AS2856 — British Telecommunications Limited |
NIC Handles
AB34802-RIPE
AS5089-MNT
BTNET-MNT
DUMY-RIPE
DUMY-RIPE
LDCOM-PRO-MNT
LEVEL3-MNT
NLNET-MNT
QUZAUK