Addresses
512
512
Sub-ranges
18+
within this block
PTR Density
31.1%
159 of 512 IPs have PTR
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.
64/100
Moderate
How this score is built
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Long-established allocation (30y) +6
- Has a reverse-DNS (PTR) record +5
- Trust score 64 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 193.203.0.0/23
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 193.203.1.0/24 | 256 | — | — | AT |
| 193.203.0.128/25 | 128 | — | — | AT |
| 193.203.0.96/27 | 32 | — | — | AT |
| 193.203.0.0/27 | 32 | — | — | AT |
| 193.203.0.32/28 | 16 | — | — | AT |
| 193.203.0.80/28 | 16 | — | — | AT |
| 193.203.0.56/29 | 8 | — | — | AT |
| 193.203.0.72/29 | 8 | — | — | AT |
| 193.203.0.68/30 | 4 | — | — | AT |
| 193.203.0.66/31 | 2 | — | — | AT |
| 193.203.0.52/31 | 2 | — | — | AT |
| 193.203.0.48/31 | 2 | — | — | AT |
| 193.203.0.51/32 | 1 | — | — | SI |
| 193.203.0.65/32 | 1 | — | — | AT |
| 193.203.0.50/32 | 1 | — | — | AT |
| 193.203.0.55/32 | 1 | — | — | AT |
| 193.203.0.54/32 | 1 | — | — | BA |
| 193.203.0.64/32 | 1 | — | — | SI |
Geolocation
First and last addresses in 193.203.0.0/23
193.203.0.0/23 runs from 193.203.0.0 to 193.203.1.255.
First 16
193.203.0.0
193.203.0.1
193.203.0.2
193.203.0.3
193.203.0.4
193.203.0.5
193.203.0.6
193.203.0.7
193.203.0.8
193.203.0.9
193.203.0.10
193.203.0.11
193.203.0.12
193.203.0.13
193.203.0.14
193.203.0.15
Last 16
BGP Routing
Live BGP anomalies →This block is announced in BGP, observed across our RIPE RIS collectors.
Announced prefix
Announcement samples
677
Last seen
2026-10-26 12:36:53
Frequently Asked Questions
What is 193.203.0.0/23?
193.203.0.0/23 is a CIDR network block containing 512 IPv4 addresses (from 193.203.0.0 to 193.203.1.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 193.203.0.0/23 network?
The 193.203.0.0/23 range is allocated to an unknown organization from Austria.
Last updated: 2026-10-27 11:54:05 UTC
