ResearchRouting table, RPKI, IRR & looking glass

AS30031 Mimecast North America Inc

AS30031 (MIMECAST-US) is registered to Mimecast North America Inc in US. It originates 26 prefixes in the global routing table.

21
IPv4 prefixes
5
IPv6 prefixes
5,888
IPv4 addresses
76%
RPKI valid

Who holds AS30031

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS30031
Handle
MIMECAST-US
Organization
Mimecast North America Inc
Country
US
ASPA
None published

What AS30031 announces

Prefixes originated by AS30031 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
21
IPv6 prefixes
5
IPv4 addresses
5,888 (23 /24s)
RPKI valid
20 76%
RPKI invalid
0
RPKI not found
6
ROAs naming AS30031
25
With an IRR route object
25 96%

Who AS30031 is reached through

The AS just before AS30031 in the paths our looking glass collectors hold, for 26 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RADBMimecast-NAMAINT-AS42427

Route objects with origin AS30031: RADB 29 · ARIN 13 · RIPE 4

as-sets that list AS30031 (5)