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 |
|---|---|---|---|---|---|---|
| 144.57.128.0/17 | 32.8K |
5.8%
|
Skanska Sverige AB | SE | Skåne County | Malmö |
| 144.57.64.0/18 | 16.4K |
0.1%
|
Skanska Sverige AB | SE | — | — |
| 144.57.0.0/19 | 8.2K |
0.0%
|
Skanska Sverige AB | SE | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS39052 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 |
|---|---|---|
| 144.57.0.0/19 | 5,913 | 2026-07-24 09:45:35 |
| 144.57.128.0/17 | 5,893 | 2026-07-24 09:45:35 |
| 144.57.64.0/18 | 5,893 | 2026-07-24 09:45:35 |
Frequently Asked Questions
What is AS39052?
AS39052 is an Autonomous System Number assigned to Skanska Sverige AB. 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 AS39052 announce?
AS39052 announces 57.3K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in Sweden.
Who operates AS39052?
AS39052 is operated by Skanska Sverige AB. The organization is based in Sweden. You can view all IP ranges and related ASNs on the organization page.
What country is AS39052 registered in?
AS39052 is registered in Sweden. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
