Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS42427

Announcement observedRIPE NCC

Mimecast Services Limited · MIMECAST-UK

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/3/2026, 14:47:39Snapshot expired

View network topology RDAP registration

ASN: AS42427
Registration country: United Kingdom
Name: Mimecast Services Limited
Abbreviation: MIMECAST-UK
Registration date: 5/5/2017, 13:56:06
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
170.10.142.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
185.58.84.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
185.58.85.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
185.58.86.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
185.58.87.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
193.7.204.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
193.7.205.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
195.130.217.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
207.82.80.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
216.145.218.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
216.145.222.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
216.35.243.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
216.35.244.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
41.74.203.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid
91.220.42.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/31/2026, 08:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: Mimecast Services Limited
RIR: RIPE NCC
Registration country: United Kingdom
Registration date: 5/5/2017, 13:56:06
Abuse contact: abuse@mimecast.com

Snapshot trend

10/3/2026, 14:47:3915 v42 v63 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn