AS55803
Hostopia Australia Web 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 →
Network profile
Source: PeeringDB →Present at 6 internet exchanges: Equinix Sydney, MegaIX Sydney: MegaIX, IX Australia Sydney (NSW-IX): NSW-IX, MegaIX Melbourne: MegaIX, IX Australia Melbourne (VIC-IX): VIC-IX, Equinix Melbourne
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS55803 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 |
|---|---|---|
| 101.0.127.0/24 | 30,599 | 2026-09-11 13:23:06 |
| 27.123.30.0/24 | 17,844 | 2026-09-11 17:29:54 |
| 203.98.70.0/23 | 15,218 | 2026-09-11 17:19:27 |
| 103.12.4.0/22 | 15,060 | 2026-09-11 17:19:35 |
| 223.27.0.0/19 | 14,217 | 2026-09-11 17:25:21 |
| 49.156.24.0/21 | 14,174 | 2026-09-11 17:19:27 |
| 125.214.64.0/20 | 14,148 | 2026-09-11 17:25:17 |
| 163.53.248.0/22 | 14,133 | 2026-09-11 17:25:17 |
| 111.67.0.0/19 | 14,083 | 2026-09-11 17:25:17 |
| 137.59.248.0/22 | 14,073 | 2026-09-11 17:25:17 |
| 103.208.216.0/22 | 14,068 | 2026-09-11 17:25:17 |
| 103.237.108.0/22 | 13,991 | 2026-09-11 17:25:17 |
| 203.16.60.0/23 | 13,931 | 2026-09-11 17:25:21 |
| 103.141.249.0/24 | 13,896 | 2026-09-11 17:19:29 |
| 175.41.40.0/22 | 13,796 | 2026-09-11 17:19:27 |
| 203.24.117.0/24 | 13,421 | 2026-09-11 17:19:40 |
| 203.98.86.0/24 | 13,390 | 2026-09-11 17:19:29 |
| 203.98.92.0/24 | 13,217 | 2026-09-11 17:24:51 |
| 203.98.93.0/24 | 12,705 | 2026-09-11 17:24:51 |
| 103.80.103.0/24 | 12,364 | 2026-09-11 17:19:29 |
| 203.98.91.0/24 | 12,166 | 2026-09-11 17:19:29 |
| 203.98.73.0/24 | 12,164 | 2026-09-11 17:19:29 |
| 203.19.59.0/24 | 12,107 | 2026-09-11 17:19:29 |
| 203.10.76.0/24 | 12,048 | 2026-09-11 17:19:40 |
| 203.98.83.0/24 | 12,043 | 2026-09-11 17:19:27 |
| 203.98.84.0/24 | 12,026 | 2026-09-11 17:19:29 |
| 203.98.75.0/24 | 11,972 | 2026-09-11 17:19:29 |
| 203.98.88.0/24 | 11,933 | 2026-09-11 17:19:29 |
| 110.173.128.0/19 | 11,479 | 2026-09-11 17:19:27 |
| 111.118.160.0/20 | 11,286 | 2026-09-11 17:19:27 |
| 103.250.20.0/22 | 11,284 | 2026-09-11 17:19:39 |
| 116.90.0.0/18 | 11,203 | 2026-09-11 17:19:27 |
| 202.4.224.0/20 | 11,009 | 2026-09-11 17:19:27 |
| 101.0.64.0/18 | 11,001 | 2026-09-11 17:19:27 |
| 101.0.76.0/24 | 10,982 | 2026-09-11 17:19:32 |
| 182.160.128.0/18 | 10,952 | 2026-09-11 17:19:39 |
| 202.130.44.0/22 | 10,920 | 2026-09-11 17:19:39 |
| 101.0.100.0/23 | 10,669 | 2026-09-11 17:19:27 |
| 203.98.95.0/24 | 10,577 | 2026-09-11 17:19:29 |
| 101.0.108.0/24 | 6,194 | 2026-07-23 17:14:59 |
| 103.254.139.0/24 | 3,906 | 2026-07-31 15:15:34 |
| 27.54.87.0/24 | 3,676 | 2026-06-27 13:05:15 |
| 103.208.216.0/24 | 3,571 | 2026-07-13 06:46:19 |
| 122.201.125.0/24 | 3,567 | 2026-06-30 03:12:16 |
| 116.90.8.0/24 | 3,493 | 2026-08-25 19:41:01 |
| 101.0.105.0/24 | 3,327 | 2026-07-03 13:08:03 |
| 101.0.106.0/24 | 3,079 | 2026-07-05 13:08:13 |
| 101.0.104.0/24 | 2,224 | 2026-05-29 11:13:44 |
| 101.0.89.0/24 | 2,095 | 2026-05-28 18:40:58 |
| 103.208.219.0/24 | 2,047 | 2026-05-29 11:13:44 |
Showing top 50 of 53 announced prefixes by sample volume.
Frequently Asked Questions
What is AS55803?
AS55803 is an Autonomous System Number assigned to Hostopia Australia Web 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 AS55803 announce?
AS55803 announces 99.8K IPv4 addresses distributed across 45 routed CIDR prefixes. The network is registered in Australia.
Who operates AS55803?
AS55803 is operated by Hostopia Australia Web Pty Ltd. The organization is based in Australia. You can view all IP ranges and related ASNs on the organization page.
What country is AS55803 registered in?
AS55803 is registered in Australia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
