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 |
|---|---|---|---|---|---|---|
| 45.65.88.0/22 | 1.0K |
3.4%
|
IT-Forsyningen I/S | DK | Capital Region | Ballerup Municipality |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS209900 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 |
|---|---|---|
| 45.65.88.0/23 | 16,639 | 2026-07-26 21:44:40 |
| 45.65.88.0/22 | 5,405 | 2026-07-26 21:44:43 |
| 45.65.90.0/23 | 5,355 | 2026-07-26 21:45:07 |
Frequently Asked Questions
What is AS209900?
AS209900 is an Autonomous System Number assigned to IT-Forsyningen I/S. 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 AS209900 announce?
AS209900 announces 1.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Denmark.
Who operates AS209900?
AS209900 is operated by IT-Forsyningen I/S. The organization is based in Denmark. You can view all IP ranges and related ASNs on the organization page.
What country is AS209900 registered in?
AS209900 is registered in Denmark. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
