AS17987
.au Domain Administration
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
- Multiple-origin (MOAS) routing anomaly −12
- Government allocation +8
- Trust score 61 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS17987 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) |
|---|---|---|
| 58.65.254.0/24 | AS17987, AS38332 | 2026-07-24 18:53:50 |
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 58.65.248.0/24 | 256 |
0.4%
|
.au Domain Administration | AU | — | — |
| 58.65.252.0/24 | 256 |
0.4%
|
.au Domain Administration | AU | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS17987 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 |
|---|---|---|
| 58.65.248.0/24 | 13,781 | 2026-07-24 18:19:59 |
| 58.65.252.0/24 | 11,521 | 2026-07-24 18:44:18 |
| 58.65.254.0/24 | 983 | 2026-07-24 18:19:51 |
Frequently Asked Questions
What is AS17987?
AS17987 is an Autonomous System Number assigned to .au Domain Administration. 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 AS17987 announce?
AS17987 announces 512 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Australia.
Who operates AS17987?
AS17987 is operated by .au Domain Administration. The organization is based in Australia. You can view all IP ranges and related ASNs on the organization page.
What country is AS17987 registered in?
AS17987 is registered in Australia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
