AS41230 ASK4 Limited 🇬🇧 GB
Announcing 23 prefixes, seen at the RIS collectors.
IPv4 prefixes
16
122,112 (477 × /24)
IPv6 prefixes
7
56 × /32
Upstreams
2
transit providers observed
Peers
16
settlement-free adjacencies
Downstreams
4
transit customers observed
Customer cone
9
ASes reachable through it
Registry and operator data
- AS number
- AS41230
- Name
- ASK4 Limited
- Organisation
- ASK4 Ltd
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2006-07-05
- Network type
- NSP
- Scope
- Europe
- Peering policy
- Selective
- IRR as-set
- AS-ASK4
- Website
- https://www.ask4.com/
- PeeringDB
- net/1756
- Exchanges
- 6
- Facilities
- 8
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
23 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 31.205.0.0/16 v4 | RPKI valid | 43 | 3454941230 | 2026-09-18 |
| 31.205.64.0/18 v4 | RPKI valid | 15 | 2448241230 | 2026-09-18 |
| 31.205.192.0/18 v4 | RPKI valid | 15 | 2448241230 | 2026-09-18 |
| 45.81.120.0/22 v4 | RPKI valid | 41 | 2448241230 | 2026-09-18 |
| 45.154.248.0/22 v4 | RPKI valid | 41 | 2448241230 | 2026-09-18 |
| 78.109.176.0/20 v4 | RPKI valid | 43 | 3454941230 | 2026-09-18 |
| 81.23.48.0/20 v4 | RPKI valid | 43 | 3454941230 | 2026-09-18 |
| 176.119.145.0/24 v4 | RPKI valid | 41 | 2448241230 | 2026-09-18 |
| 185.134.128.0/22 v4 | RPKI valid | 41 | 2448241230 | 2026-09-18 |
| 185.134.136.0/22 v4 | RPKI valid | 41 | 2448241230 | 2026-09-18 |
| 185.134.136.0/23 v4 | RPKI valid | 41 | 2448241230 | 2026-09-18 |
| 185.134.138.0/24 v4 | RPKI valid | 41 | 2448241230 | 2026-09-18 |
| 185.134.139.0/24 v4 | RPKI valid | 41 | 2448241230 | 2026-09-18 |
| 185.134.144.0/22 v4 | RPKI valid | 43 | 3454941230 | 2026-09-18 |
| 185.198.228.0/22 v4 | RPKI valid | 43 | 3454941230 | 2026-09-18 |
| 213.143.0.0/19 v4 | RPKI valid | 43 | 3454941230 | 2026-09-18 |
| 2a00:1a10::/29 v6 | RPKI valid | 33 | 5030041230 | 2026-09-18 |
| 2a07:c300::/29 v6 | RPKI valid | 33 | 38001291441230 | 2026-09-18 |
| 2a0e:2a40::/29 v6 | RPKI valid | 33 | 5030041230 | 2026-09-18 |
| 2a0e:2ac0::/29 v6 | RPKI valid | 33 | 5030041230 | 2026-09-18 |
| 2a0e:5680::/29 v6 | RPKI valid | 33 | 5030041230 | 2026-09-18 |
| 2a0f:dd00::/29 v6 | RPKI valid | 33 | 5030041230 | 2026-09-18 |
| 2a10:d00::/29 v6 | RPKI valid | 33 | 5030041230 | 2026-09-18 |