AS42427

Name: AS42427 — Mimecast Services Limited
Creator: ipdex

Mimecast Services Limited Unknown registered in United Kingdom

11IPv4 prefixes

2IPv6 prefixes

77%RPKI-valid

#31,525AS Rank

327/327RIS visibility

#289Rank in United Kingdom

2017-05-05Allocated

Mimecast Services Limited (AS42427) — Unknown, registered in United Kingdom. announces 11 IPv4 prefixes + 2 IPv6 prefixes. Rank in United Kingdom: #289. Allocated: 2017-05-05.

IPv4 11IPv6 2

Announced prefixes · 13

v4 185.58.84.0/24 valid
v4 185.58.85.0/24 valid
v4 185.58.86.0/24 valid
v4 185.58.87.0/24 valid
v4 193.7.204.0/24 valid
v4 193.7.205.0/24 valid
v4 195.130.217.0/24 valid
v4 207.82.80.0/24 unknown
v4 216.35.243.0/24 unknown
v4 216.35.244.0/24 unknown
v4 91.220.42.0/24 valid
v6 2a02:5be0:1::/48 valid
v6 2a02:5be0::/48 valid

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 15 IPv4 · 2 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	13
2026-06-13	13

AS topology · Customer cone 1

Providers · 3

AS3356 Level 3 Parent, LLC
AS2914 NTT America, Inc.
AS6461 Zayo Bandwidth

Peers · 1

AS1000 LINK AMERICAN

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