AS21581 M5 Computer Security 🇺🇸 US

Announcing 25 prefixes, seen at the RIS collectors.

IPv4 prefixes
21
9,472 (37 × /24)
IPv6 prefixes
4
1 × /32
Upstreams
2
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
AS21581
Name
M5 Computer Security
Organisation
M5 Computer Security / M5Hosting
Country
🇺🇸 US
RIR
ARIN
Allocated
2008-05-28
Network type
Content
Scope
Regional
Peering policy
Open
PeeringDB
net/2875
Facilities
4

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

22 valid (88.0%) 0 invalid (0.0%) 3 no ROA (12.0%)

Announced prefixes

25 in total

Prefix RPKI Peers Sample path First seen
38.96.14.0/24 v4 no ROA 41 176391132021581 2026-09-18
66.238.186.0/24 v4 no ROA 46 176391132021581 2026-11-01
98.158.160.0/20 v4 no ROA 46 176391132021581 2026-11-01
108.161.144.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
108.161.145.0/24 v4 RPKI valid 46 5805717421581 2026-09-18
108.161.146.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
108.161.148.0/24 v4 RPKI valid 46 5805717421581 2026-09-18
108.161.151.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
108.161.156.0/23 v4 RPKI valid 45 5805717421581 2026-10-02
108.161.156.0/24 v4 RPKI valid 45 5805717421581 2026-09-18
206.71.169.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
206.71.179.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
206.71.190.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
206.251.244.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
206.251.255.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
207.158.15.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
207.158.30.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
207.158.37.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
207.158.52.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
209.216.206.0/24 v4 RPKI valid 46 5805717421581 2026-09-18
209.216.230.0/24 v4 RPKI valid 46 176391132021581 2026-09-18
2606:7100::/32 v6 RPKI valid 35 244821132021581 2026-09-18
2606:7100:1cab::/48 v6 RPKI valid 35 244821132021581 2026-09-18
2606:7100:3100::/44 v6 RPKI valid 36 5805717421581 2026-09-18
2606:7100:3200::/44 v6 RPKI valid 31 3454917421581 2026-09-18