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Autonomous System

AS136792

Mimecast Australia Pty Ltd

Announced IPs
2,048
CIDR prefixes
4
ASN
AS136792

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 4 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS136792 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
170.10.142.0/24 AS42427, AS136792 2026-07-22 11:53:21
216.145.218.0/24 AS39588, AS136792 2026-07-22 11:53:21
41.74.203.0/24 AS39588, AS136792 2026-07-22 11:53:21
216.145.222.0/24 AS39588, AS136792 2026-07-22 11:53:21

Network profile

Source: PeeringDB →
Network type Content
Geographic scope Not Disclosed
Traffic ratio Not Disclosed
Peering policy Open

Present at 1 internet exchange: Equinix Sydney

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
103.96.20.0/22 1.0K
45.8%
Mimecast Australia Pty Ltd AU
170.10.134.0/23 512
0.0%
Mimecast Australia Pty Ltd US
103.13.69.0/24 256
21.5%
Mimecast Australia Pty Ltd AU
180.189.28.0/24 256
85.5%
Mimecast Australia Pty Ltd AU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS136792 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
170.10.134.0/24 9,728 2026-07-22 11:06:28
180.189.28.0/24 9,304 2026-07-22 11:06:28
103.96.21.0/24 9,281 2026-07-22 11:06:28
103.96.20.0/24 9,269 2026-07-22 11:06:28
103.13.69.0/24 8,699 2026-07-22 11:06:28
103.96.23.0/24 8,635 2026-07-22 10:32:48
170.10.135.0/24 8,595 2026-07-22 10:32:48
103.96.22.0/24 8,595 2026-07-22 10:32:48
170.10.142.0/24 291 2026-07-22 11:38:17
41.74.203.0/24 281 2026-07-22 11:38:17
216.145.218.0/24 265 2026-07-22 11:38:17
216.145.222.0/24 264 2026-07-22 11:38:17

Frequently Asked Questions

What is AS136792?

AS136792 is an Autonomous System Number assigned to Mimecast Australia Pty Ltd. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS136792 announce?

AS136792 announces 2.0K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Australia.

Who operates AS136792?

AS136792 is operated by Mimecast Australia Pty Ltd. The organization is based in Australia. You can view all IP ranges and related ASNs on the organization page.

What country is AS136792 registered in?

AS136792 is registered in Australia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-22 11:55:31 UTC
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