AS56307
ac3, Australian Centre for Advanced Computing and Communications
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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: MegaIX Sydney: MegaIX
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS56307 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 |
|---|---|---|
| 203.3.178.0/23 | 7,327 | 2026-07-30 14:32:02 |
| 203.202.0.0/24 | 7,136 | 2026-07-30 14:32:02 |
| 203.22.104.0/23 | 7,125 | 2026-07-30 14:32:26 |
| 139.5.172.0/24 | 7,037 | 2026-07-30 14:32:02 |
| 139.5.173.0/24 | 7,032 | 2026-07-30 14:32:02 |
| 203.3.188.0/23 | 7,026 | 2026-07-30 14:32:02 |
| 202.129.152.0/21 | 6,996 | 2026-07-30 14:32:02 |
| 103.227.22.0/23 | 6,961 | 2026-07-30 14:32:02 |
| 103.227.20.0/23 | 6,947 | 2026-07-30 14:32:02 |
| 203.166.218.0/24 | 6,930 | 2026-07-30 14:32:26 |
| 202.129.148.0/22 | 6,918 | 2026-07-30 14:32:02 |
| 139.5.172.0/23 | 6,909 | 2026-07-30 14:32:02 |
| 202.59.246.0/24 | 6,799 | 2026-07-30 14:32:26 |
| 202.52.45.0/24 | 6,727 | 2026-07-30 14:32:26 |
| 202.47.84.0/24 | 6,421 | 2026-07-30 14:32:26 |
| 202.47.85.0/24 | 6,403 | 2026-07-30 14:32:26 |
| 203.3.179.0/24 | 6,061 | 2026-07-30 13:33:09 |
| 203.3.188.0/24 | 5,939 | 2026-07-30 13:33:09 |
| 203.3.178.0/24 | 5,922 | 2026-07-30 13:33:09 |
| 203.3.189.0/24 | 5,817 | 2026-07-30 13:33:09 |
Frequently Asked Questions
What is AS56307?
AS56307 is an Autonomous System Number assigned to ac3, Australian Centre for Advanced Computing and Communications. 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 AS56307 announce?
AS56307 announces 7.7K IPv4 addresses distributed across 12 routed CIDR prefixes. The network is registered in Australia.
Who operates AS56307?
AS56307 is operated by ac3, Australian Centre for Advanced Computing and Communications. The organization is based in Australia. You can view all IP ranges and related ASNs on the organization page.
What country is AS56307 registered in?
AS56307 is registered in Australia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
