AS30031 Mimecast North America Inc 🇺🇸 US

Announcing 26 prefixes, seen at the RIS collectors.

IPv4 prefixes
21
5,888 (23 × /24)
IPv6 prefixes
5
5 × /48
Upstreams
4
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
AS30031
Name
Mimecast North America Inc
Organisation
Mimecast North America Inc
Country
🇺🇸 US
RIR
ARIN
Allocated
2017-07-07

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

20 valid (76.9%) 0 invalid (0.0%) 6 no ROA (23.1%)

Upstreams

Networks seen providing transit to this one

Network Country Cone IPv4 prefixes Paths Source
AS3356 Lumen (Level 3) 🇺🇸 US 70,617 2,074 319 CAIDA
AS2914 NTT America, Inc. 🇺🇸 US 54,356 1,616 65 CAIDA
AS6461 Zayo Bandwidth 🇺🇸 US 49,631 213 486 CAIDA
AS12213 Centersquare 🇺🇸 US 135 36 42 CAIDA

Peers

Adjacencies that look settlement-free rather than transit

No peers observed at the collectors.

Downstreams

Networks this one appears to provide transit to

No downstreams observed at the collectors.

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.