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Autonomous System

AS45158

TASMANET

Announced IPs
4,352
CIDR prefixes
7
ASN
AS45158

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 →
Geographic scope Australia
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-TASMANET

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
120.29.240.0/21 2.0K
6.3%
TASMANET AU Tasmania Hobart
103.251.172.0/22 1.0K
3.2%
TASMANET AU Tasmania Hobart
103.102.118.0/24 256
0.0%
TASMANET AU
203.13.22.0/24 256
2.3%
TASMANET AU
203.16.175.0/24 256
0.8%
TASMANET AU
203.17.166.0/24 256
0.0%
TASMANET AU
203.33.128.0/24 256
8.2%
TASMANET AU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS45158 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
120.29.245.0/24 33,437 2026-07-24 00:28:10
103.102.118.0/24 29,395 2026-07-24 00:28:09
103.251.174.0/23 28,406 2026-07-24 00:28:08
103.251.172.0/22 28,354 2026-07-24 00:28:08
103.251.172.0/23 28,330 2026-07-24 00:28:08
120.29.240.0/21 28,134 2026-07-24 00:28:10
203.13.22.0/24 25,708 2026-07-24 00:28:10
203.33.128.0/24 25,320 2026-07-24 00:28:10
203.17.166.0/24 25,308 2026-07-24 00:28:08
203.16.175.0/24 25,168 2026-07-24 00:28:08

Frequently Asked Questions

What is AS45158?

AS45158 is an Autonomous System Number assigned to TASMANET. 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 AS45158 announce?

AS45158 announces 4.4K IPv4 addresses distributed across 7 routed CIDR prefixes. The network is registered in Australia.

Who operates AS45158?

AS45158 is operated by TASMANET. The organization is based in Australia. You can view all IP ranges and related ASNs on the organization page.

What country is AS45158 registered in?

AS45158 is registered in Australia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 00:25:31 UTC
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