AS33538 Mimecast North America Inc 🇺🇸 US
Announcing 8 prefixes, seen at the RIS collectors.
IPv4 prefixes
6
2,048 (8 × /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
- AS33538
- Name
- Mimecast North America Inc
- Organisation
- Mimecast North America Inc
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2020-05-29
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
6 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 41.74.203.0/24 v4 | no ROA | 3 | 22652174335633538 | 2026-10-11 |
| 170.10.142.0/24 v4 | RPKI valid | 3 | 22652174335633538 | 2026-10-11 |
| 170.10.144.0/23 v4 | RPKI valid | 43 | 34549646133538 | 2026-09-18 |
| 170.10.146.0/23 v4 | RPKI valid | 43 | 34549646133538 | 2026-09-18 |
| 216.145.218.0/24 v4 | RPKI valid | 3 | 22652174335633538 | 2026-10-11 |
| 216.145.222.0/24 v4 | RPKI valid | 3 | 22652174335633538 | 2026-10-11 |