AS39588 Mimecast Services Limited 🇬🇧 GB
Announcing 14 prefixes, seen at the RIS collectors.
IPv4 prefixes
12
3,584 (14 × /24)
IPv6 prefixes
2
2 × /48
Upstreams
3
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS39588
- Name
- Mimecast Services Limited
- Organisation
- Mimecast Services Limited
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2017-11-07
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
14 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 41.74.203.0/24 v4 | no ROA | 15 | 34549646139588 | 2026-09-18 |
| 51.163.158.0/24 v4 | RPKI valid | 42 | 34549158302498939588 | 2026-09-18 |
| 51.163.159.0/24 v4 | RPKI valid | 42 | 34549158302498939588 | 2026-09-18 |
| 62.140.7.0/24 v4 | no ROA | 42 | 34549646139588 | 2026-09-18 |
| 62.140.10.0/24 v4 | no ROA | 42 | 34549646139588 | 2026-09-18 |
| 147.28.34.0/24 v4 | RPKI valid | 43 | 34549646139588 | 2026-09-18 |
| 147.28.35.0/24 v4 | RPKI valid | 43 | 34549646139588 | 2026-09-18 |
| 170.10.142.0/24 v4 | RPKI valid | 12 | 34549646139588 | 2026-09-18 |
| 194.104.108.0/23 v4 | RPKI valid | 43 | 34549646139588 | 2026-09-18 |
| 194.104.110.0/23 v4 | RPKI valid | 43 | 34549646139588 | 2026-09-18 |
| 216.145.218.0/24 v4 | RPKI valid | 17 | 34549646139588 | 2026-09-18 |
| 216.145.222.0/24 v4 | RPKI valid | 17 | 34549646139588 | 2026-09-18 |
| 2a02:5be0:2::/48 v6 | RPKI valid | 35 | 34549646139588 | 2026-09-18 |
| 2a02:5be0:3::/48 v6 | RPKI valid | 35 | 34549646139588 | 2026-09-18 |