AS42427 Mimecast Services Limited 🇬🇧 GB
Announcing 17 prefixes, seen at the RIS collectors.
IPv4 prefixes
15
3,840 (15 × /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
- AS42427
- Name
- Mimecast Services Limited
- Organisation
- Mimecast Services Limited
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2017-05-05
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
17 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 41.74.203.0/24 v4 | no ROA | 10 | 37721335642427 | 2026-09-18 |
| 91.220.42.0/24 v4 | RPKI valid | 42 | 34549646142427 | 2026-09-18 |
| 170.10.142.0/24 v4 | RPKI valid | 15 | 37721335642427 | 2026-09-18 |
| 185.58.84.0/24 v4 | RPKI valid | 42 | 34549646142427 | 2026-09-18 |
| 185.58.85.0/24 v4 | RPKI valid | 42 | 34549646142427 | 2026-09-18 |
| 185.58.86.0/24 v4 | RPKI valid | 42 | 34549646142427 | 2026-09-18 |
| 185.58.87.0/24 v4 | RPKI valid | 42 | 34549646142427 | 2026-09-18 |
| 193.7.204.0/24 v4 | RPKI valid | 42 | 34549646142427 | 2026-09-18 |
| 193.7.205.0/24 v4 | RPKI valid | 42 | 34549646142427 | 2026-09-18 |
| 195.130.217.0/24 v4 | RPKI valid | 42 | 34549646142427 | 2026-09-18 |
| 207.82.80.0/24 v4 | no ROA | 42 | 34549646142427 | 2026-09-18 |
| 216.35.243.0/24 v4 | no ROA | 43 | 37721335642427 | 2026-09-18 |
| 216.35.244.0/24 v4 | no ROA | 43 | 37721335642427 | 2026-09-18 |
| 216.145.218.0/24 v4 | RPKI valid | 9 | 37721335642427 | 2026-09-18 |
| 216.145.222.0/24 v4 | RPKI valid | 9 | 37721335642427 | 2026-09-18 |
| 2a02:5be0::/48 v6 | RPKI valid | 35 | 34549646142427 | 2026-09-18 |
| 2a02:5be0:1::/48 v6 | RPKI valid | 34 | 38001291442427 | 2026-09-18 |