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Autonomous System

AS153748

Function4

Announced IPs
256
CIDR prefixes
1
ASN
AS153748

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 →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
163.227.142.0/24 256
0.0%
Function4 AU Queensland Brisbane

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS153748 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
163.227.142.0/24 103,302 2026-07-29 08:57:12

Frequently Asked Questions

What is AS153748?

AS153748 is an Autonomous System Number assigned to Function4. 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 AS153748 announce?

AS153748 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Australia.

Who operates AS153748?

AS153748 is operated by Function4. The organization is based in Australia. You can view all IP ranges and related ASNs on the organization page.

What country is AS153748 registered in?

AS153748 is registered in Australia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-29 10:40:32 UTC
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