NCSC
Data as of 2026-10-18
BGP inherited
This organisation
| Netblocks | 10 · 1,612 IPv4 addresses |
| IPv6 | 1 prefix (largest 2a08:600::/40) |
| Registered in | United Kingdom (6) · China (2) · AL (1) |
| Record ID | 251077151 |
| Registry | APNIC |
| Customers | see who runs inside 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 (10)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 195.130.28.0/24 | NCSC | RIPE | ASSIGNED PA | ● medium |
| 195.130.29.0/24 | NCSC | RIPE | ASSIGNED PA | ● medium |
| 195.130.30.0/24 | NCSC | RIPE | ASSIGNED PA | ● medium |
| 195.130.31.0/24 | NCSC | RIPE | ASSIGNED PA | ● medium |
| 25.25.25.0/24 | NCSC | RIPE | LEGACY | ● low |
| 25.26.27.0/24 | NCSC | RIPE | LEGACY | ● low |
| 58.248.20.160/29 | Ncsc | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 58.248.28.0/26 | Ncsc | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 178.132.216.28/30 | NCSC | RIPE | ASSIGNED PA | ● low |
| 2a08:600::/40 | NCSC | RIPE | ALLOCATED-BY-LIR | ● low |
IPv6 ranges (1)
| CIDR |
|---|
| 2a08:600::/40 |
Footprint over time
17 weekly snapshots · JSON
10
0 netblocks since 2026-07-05
2026-07-05
peak 10
2026-10-18
Network trust
what's this?
RPKI hygiene: B
how networks compare →
90.0%
of checked blocks have valid RPKI ROA coverage
(9 of 10)
Possible discrepancies (2)
These blocks are registered to NCSC 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.
| 25.25.25.0/24 /24 | authorized for AS13335 — Cloudflare, Inc. |
| 25.26.27.0/24 /24 | authorized for AS13335 — Cloudflare, Inc. |
NIC Handles
CG272-AP
CG272-AP
DUMY-RIPE
DUMY-RIPE
MAINT-CNCGROUP-GD
NOC-KIS
UK-MOD-MNT