Mimecast Limited

Mimecast
GLEIF verified
LEI
254900ELSYFSTT9X2740
Registered name
Mimecast Limited
Jurisdiction
JE
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks16 · 1,303 IPv4 addresses
Registered in Netherlands (4) · Hong Kong (3) · JE (3) · United Kingdom (2) · Germany (1)
All fragments 193 blocks across 42 clusters
Cluster ID214625507
RegistryRIPE
Owner jurisdictionJE
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 254900ELSYFSTT9X2740
Shared handles clustered on 8 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

6 weekly snapshots · JSON
16 0 netblocks since 2026-07-05
2026-07-05 peak 16 2026-07-26

IP Ranges (16)

⬇ export CSV
CIDR Org name Registry Status Confidence
89.202.105.64/26 MIMECAST RIPE ASSIGNED PA ● high
51.163.158.0/24 MIMECAST RIPE LEGACY ● low
51.163.159.0/24 MIMECAST RIPE LEGACY ● low
147.123.48.64/30 Mimecast RIPE LEGACY ● low
147.123.48.68/30 Mimecast RIPE LEGACY ● low
147.123.48.72/30 Mimecast RIPE LEGACY ● low
147.123.48.80/29 Mimecast RIPE LEGACY ● low
195.153.16.192/26 MIMECAST RIPE ASSIGNED PA ● low
195.153.194.240/28 MIMECAST RIPE ASSIGNED PA ● low
195.153.210.192/26 MIMECAST RIPE ASSIGNED PA ● low
213.167.75.0/24 Mimecast RIPE ASSIGNED PA ● low
213.167.81.0/24 MIMECAST RIPE ASSIGNED PA ● low
213.167.86.32 – 213.167.86.95 Mimecast RIPE ASSIGNED PA ● low
2a02:297c:8010:b::/64 Mimecast RIPE ASSIGNED ● low
2a02:297c:8010:c::/64 Mimecast RIPE ASSIGNED ● low
2a02:297c:8010:d::/64 Mimecast RIPE ASSIGNED ● low

Domains hosted in this network

what's this?
mimecastprotect.com

Network trust

what's this?
RPKI hygiene: B how networks compare →
87.5% of checked blocks have valid RPKI ROA coverage (14 of 16)
No discrepancies found among checked blocks.

NIC Handles

AR19849-RIPE CGRD-RIPE DUMY-RIPE DUMY-RIPE EQUINIX-FULFIL-MNT EQUINIX-MNT FORESHORE-MNT PSINET-UK-SYSADMIN