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Autonomous System

AS4851

Host Networks

Announced IPs
17,664
CIDR prefixes
14
ASN
AS4851

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.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Content
Traffic level 1-5Gbps
Geographic scope Australia
Traffic ratio Mostly Outbound
Peering policy Open

Present at 1 internet exchange: MegaIX Brisbane: MegaIX

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS4851 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
103.74.217.0/24 16,511 2026-09-17 10:28:41
103.74.218.0/23 16,387 2026-09-17 10:28:41
103.77.146.0/23 16,257 2026-09-17 10:28:41
103.77.144.0/23 16,253 2026-09-17 10:28:41
103.194.229.0/24 16,213 2026-09-17 10:28:41
103.206.187.0/24 16,190 2026-09-17 10:28:41
103.74.216.0/22 16,172 2026-09-17 10:28:41
103.77.144.0/22 16,153 2026-09-17 10:28:41
103.196.148.0/22 16,031 2026-09-17 10:28:41
202.128.106.0/24 15,995 2026-09-17 10:28:41
119.148.64.0/19 15,985 2026-09-17 10:28:41
117.120.40.0/21 15,970 2026-09-17 10:28:41
202.174.96.0/20 15,959 2026-09-17 10:28:41
202.174.104.0/21 1,217 2026-08-28 02:10:29
119.148.80.0/24 1,214 2026-08-28 02:10:29
119.148.64.0/20 1,206 2026-08-28 02:10:29
119.148.88.0/21 1,196 2026-08-28 02:10:29
202.174.96.0/21 1,194 2026-08-28 02:10:29
117.120.44.0/22 1,191 2026-08-28 02:10:29
117.120.40.0/22 1,154 2026-08-28 02:10:29
202.174.101.0/24 1,139 2026-08-28 02:10:29
202.174.97.0/24 1,137 2026-08-28 02:10:29
202.174.98.0/24 1,137 2026-08-28 02:10:29
202.174.99.0/24 1,136 2026-08-28 02:10:29
202.174.96.0/24 1,126 2026-08-28 02:10:29
119.148.87.0/24 26 2026-08-27 23:13:19
117.120.46.0/24 26 2026-08-27 23:13:19
119.148.83.0/24 26 2026-08-27 23:13:19
117.120.47.0/24 26 2026-08-27 23:13:19
117.120.44.0/24 26 2026-08-27 23:13:19
117.120.45.0/24 26 2026-08-27 23:13:19
119.148.90.0/24 26 2026-08-27 23:13:19
119.148.84.0/24 26 2026-08-27 23:13:19
119.148.82.0/24 26 2026-08-27 23:13:19
103.99.187.0/24 3 2026-08-27 22:32:19

Frequently Asked Questions

What is AS4851?

AS4851 is an Autonomous System Number assigned to Host Networks. 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 AS4851 announce?

AS4851 announces 17.7K IPv4 addresses distributed across 14 routed CIDR prefixes. The network is registered in Australia.

Who operates AS4851?

AS4851 is operated by Host Networks. The organization is based in Australia. You can view all IP ranges and related ASNs on the organization page.

What country is AS4851 registered in?

AS4851 is registered in Australia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-17 11:24:05 UTC
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