AS12311
International Atomic Energy Agency
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 →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 161.5.128.0/17 | 32.8K |
98.2%
|
International Atomic Energy Agency | AT | — | — |
| 161.5.64.0/18 | 16.4K |
95.1%
|
International Atomic Energy Agency | AT | — | — |
| 161.5.0.0/19 | 8.2K |
85.1%
|
International Atomic Energy Agency | AT | State of Vienna | Vienna |
| 161.5.48.0/20 | 4.1K |
99.8%
|
International Atomic Energy Agency | AT | — | — |
| 161.5.40.0/21 | 2.0K |
99.8%
|
International Atomic Energy Agency | AT | — | — |
| 161.5.36.0/22 | 1.0K |
99.6%
|
International Atomic Energy Agency | AT | — | — |
| 161.5.34.0/23 | 512 |
99.8%
|
International Atomic Energy Agency | AT | — | — |
| 130.0.70.0/24 | 256 |
0.0%
|
International Atomic Energy Agency | AT | State of Vienna | Vienna |
| 161.5.33.0/24 | 256 |
100.0%
|
International Atomic Energy Agency | AT | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS12311 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 |
|---|---|---|
| 161.5.0.0/16 | 119,667 | 2026-07-23 20:44:57 |
| 130.0.70.0/24 | 104,090 | 2026-07-23 20:44:57 |
Frequently Asked Questions
What is AS12311?
AS12311 is an Autonomous System Number assigned to International Atomic Energy Agency. 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 AS12311 announce?
AS12311 announces 65.5K IPv4 addresses distributed across 9 routed CIDR prefixes. The network is registered in Austria.
Who operates AS12311?
AS12311 is operated by International Atomic Energy Agency. The organization is based in Austria. You can view all IP ranges and related ASNs on the organization page.
What country is AS12311 registered in?
AS12311 is registered in Austria. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
