AS133104
Instra Corporation Pty Ltd
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.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 103.152.248.0/23 | 512 |
33.4%
|
Instra Corporation Pty Ltd | AU | Victoria | Inverleigh |
| 119.252.177.0/24 | 256 |
3.1%
|
Instra Corporation Pty Ltd | AU | — | — |
| 119.252.178.0/24 | 256 |
0.0%
|
Instra Corporation Pty Ltd | AU | — | — |
| 119.252.183.0/24 | 256 |
0.4%
|
Instra Corporation Pty Ltd | AU | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS133104 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 119.252.178.0/24 | 38,788 | 2026-08-04 01:16:14 |
| 119.252.177.0/24 | 38,280 | 2026-08-04 01:16:14 |
| 103.152.249.0/24 | 7,914 | 2026-08-04 02:07:18 |
| 103.152.248.0/24 | 7,260 | 2026-08-04 01:38:04 |
| 119.252.183.0/24 | 5,773 | 2026-08-04 01:38:09 |
Frequently Asked Questions
What is AS133104?
AS133104 is an Autonomous System Number assigned to Instra Corporation 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 AS133104 announce?
AS133104 announces 1.3K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Australia.
Who operates AS133104?
AS133104 is operated by Instra Corporation Pty Ltd. The organization is based in Australia. You can view all IP ranges and related ASNs on the organization page.
What country is AS133104 registered in?
AS133104 is registered in Australia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
