AS7575
Australian Academic and Research Network (AARNet)
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
- Active-threat / abuse risk −12
- Academic allocation +6
- Trust score 59 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
About AARNet
AARNet provides Internet services to the Australian education and research communities and their research partners.
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS7575 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.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 203.19.218.0/24 | AS2764, AS7575 | 2026-11-12 21:09:03 |
Network profile
Source: PeeringDB →Present at 29 internet exchanges: SIX Seattle: MTU 1500, IX Australia Perth (WA-IX): WA-IX, Equinix Sydney, SOX, IX Australia Melbourne (VIC-IX): VIC-IX, IX Australia Brisbane (QLD-IX): QLD-IX, IX Australia Sydney (NSW-IX): NSW-IX, Any2West, SGIX: Peering LAN, Pacific Wave, …
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS7575 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 |
|---|---|---|
| 131.170.251.0/24 | 60,033 | 2026-11-12 21:00:15 |
| 131.170.0.0/16 | 57,037 | 2026-11-12 20:59:46 |
| 131.170.0.0/24 | 56,893 | 2026-11-12 20:59:52 |
| 131.170.239.0/24 | 56,803 | 2026-11-12 20:59:46 |
| 160.250.232.0/23 | 55,469 | 2026-11-12 20:59:44 |
| 203.24.164.0/24 | 52,772 | 2026-11-12 20:59:53 |
| 138.7.67.0/24 | 48,387 | 2026-11-12 20:59:26 |
| 138.7.0.0/18 | 48,386 | 2026-11-12 20:59:43 |
| 203.19.110.0/24 | 48,196 | 2026-11-03 10:12:46 |
| 138.7.191.0/24 | 48,184 | 2026-11-12 20:59:43 |
| 202.6.112.0/24 | 47,622 | 2026-11-03 10:12:46 |
| 203.21.37.0/24 | 46,526 | 2026-11-12 20:59:23 |
| 203.24.163.0/24 | 45,173 | 2026-11-12 20:59:51 |
| 144.205.0.0/16 | 42,240 | 2026-11-12 21:00:12 |
| 131.170.5.0/24 | 42,211 | 2026-11-12 20:59:47 |
| 192.245.105.0/24 | 41,619 | 2026-11-12 21:00:06 |
| 203.29.244.0/24 | 40,907 | 2026-11-12 21:00:18 |
| 203.29.245.0/24 | 40,869 | 2026-11-12 21:00:19 |
| 138.7.193.0/24 | 40,331 | 2026-11-12 20:59:47 |
| 143.92.0.0/21 | 40,161 | 2026-11-12 20:59:34 |
| 143.92.16.0/20 | 40,078 | 2026-11-12 21:00:07 |
| 143.92.8.0/23 | 40,054 | 2026-11-12 21:00:16 |
| 143.92.10.0/24 | 40,008 | 2026-11-12 21:00:02 |
| 143.92.11.0/24 | 39,965 | 2026-11-12 21:00:03 |
| 138.7.152.0/23 | 39,932 | 2026-11-12 21:00:03 |
| 143.92.13.0/24 | 39,120 | 2026-11-12 21:00:06 |
| 143.92.14.0/23 | 39,082 | 2026-11-12 21:00:06 |
| 202.0.98.0/24 | 38,913 | 2026-11-12 21:00:12 |
| 138.44.176.0/20 | 38,862 | 2026-11-12 20:59:57 |
| 203.1.238.0/24 | 38,788 | 2026-11-12 20:59:55 |
| 139.230.0.0/21 | 38,777 | 2026-11-12 20:59:39 |
| 143.92.12.0/24 | 38,615 | 2026-11-12 21:00:04 |
| 203.17.201.0/24 | 38,462 | 2026-11-12 21:00:03 |
| 203.17.200.0/24 | 38,296 | 2026-11-12 21:00:02 |
| 103.68.92.0/24 | 35,176 | 2026-11-12 20:59:59 |
| 137.92.0.0/16 | 34,715 | 2026-11-12 20:59:28 |
| 202.44.134.0/24 | 34,301 | 2026-11-12 20:59:44 |
| 138.44.192.0/20 | 34,066 | 2026-11-12 21:04:35 |
| 138.44.64.0/18 | 33,854 | 2026-11-12 21:00:10 |
| 138.44.0.0/18 | 33,582 | 2026-11-12 21:00:11 |
| 203.22.64.0/24 | 33,580 | 2026-11-12 21:00:06 |
| 203.29.244.0/22 | 33,027 | 2026-11-12 21:00:07 |
| 138.44.132.0/23 | 32,976 | 2026-10-29 14:54:28 |
| 202.158.192.0/19 | 32,883 | 2026-11-12 20:59:40 |
| 138.44.0.0/16 | 32,592 | 2026-11-12 21:00:13 |
| 182.255.96.0/19 | 32,565 | 2026-11-12 20:59:21 |
| 203.25.75.0/24 | 32,420 | 2026-11-12 20:59:52 |
| 103.254.92.0/23 | 32,347 | 2026-11-12 20:59:37 |
| 113.197.0.0/20 | 32,201 | 2026-11-12 21:00:07 |
| 203.5.76.0/24 | 31,320 | 2026-11-12 21:00:16 |
Showing top 50 of 208 announced prefixes by sample volume.
Frequently Asked Questions
What is AS7575?
AS7575 is an Autonomous System Number assigned to Australian Academic and Research Network (AARNet). 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 AS7575 announce?
AS7575 announces 1.14M IPv4 addresses distributed across 122 routed CIDR prefixes. The network is registered in Australia.
Who operates AS7575?
AS7575 is operated by Australian Academic and Research Network AARNet. The organization is based in Australia. You can view all IP ranges and related ASNs on the organization page.
What country is AS7575 registered in?
AS7575 is registered in Australia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
