AS27311 Biogen MA Inc 🇺🇸 US
Announcing 4 prefixes, seen at the RIS collectors.
IPv4 prefixes
4
1,024 (4 × /24)
IPv6 prefixes
0
-
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
- AS27311
- Name
- Biogen MA Inc
- Organisation
- Biogen MA Inc
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2015-11-05
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
4 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 161.199.168.0/24 v4 | no ROA | 41 | 1763970127311 | 2026-09-18 |
| 161.199.170.0/24 v4 | no ROA | 40 | 3333540027311 | 2026-09-18 |
| 161.199.171.0/24 v4 | no ROA | 41 | 1763970127311 | 2026-09-18 |
| 198.180.131.0/24 v4 | no ROA | 41 | 1763970127311 | 2026-09-18 |