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
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS375 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 |
|---|---|---|
| 192.49.9.0/24 | 19,718 | 2026-09-11 10:27:18 |
| 192.49.48.0/22 | 17,146 | 2026-09-11 10:11:00 |
| 192.49.148.0/22 | 17,119 | 2026-09-11 10:11:00 |
| 192.49.117.0/24 | 17,015 | 2026-09-11 10:11:00 |
| 192.49.112.0/22 | 16,974 | 2026-09-11 10:11:00 |
| 192.49.78.0/24 | 16,963 | 2026-09-11 10:11:00 |
| 192.49.52.0/23 | 16,959 | 2026-09-11 10:11:00 |
| 192.49.72.0/24 | 16,954 | 2026-09-11 10:11:00 |
| 192.49.119.0/24 | 16,953 | 2026-09-11 10:11:00 |
| 192.49.40.0/21 | 16,936 | 2026-09-11 10:11:00 |
| 192.49.152.0/21 | 16,929 | 2026-09-11 10:11:00 |
| 131.207.0.0/17 | 16,919 | 2026-09-11 10:11:00 |
| 192.49.10.0/24 | 16,912 | 2026-09-11 10:11:00 |
| 192.49.139.0/24 | 16,905 | 2026-09-11 10:11:00 |
| 192.49.72.0/23 | 16,903 | 2026-09-11 10:11:00 |
| 192.49.36.0/22 | 16,890 | 2026-09-11 10:11:00 |
| 192.49.70.0/23 | 16,889 | 2026-09-11 10:11:00 |
| 192.49.170.0/24 | 16,884 | 2026-09-11 10:11:00 |
| 192.49.142.0/24 | 16,870 | 2026-09-11 10:11:00 |
| 192.49.146.0/24 | 16,867 | 2026-09-11 10:11:00 |
| 192.49.13.0/24 | 16,857 | 2026-09-11 10:11:00 |
| 192.49.140.0/23 | 16,854 | 2026-09-11 10:11:00 |
| 192.49.173.0/24 | 16,845 | 2026-09-11 10:11:00 |
| 192.49.81.0/24 | 16,844 | 2026-09-11 10:11:00 |
| 192.49.144.0/24 | 16,844 | 2026-09-11 10:11:00 |
| 192.49.88.0/23 | 16,831 | 2026-09-11 10:11:00 |
| 192.49.96.0/20 | 16,828 | 2026-09-11 10:11:00 |
| 192.49.176.0/20 | 16,824 | 2026-09-11 10:11:00 |
| 192.49.56.0/21 | 16,823 | 2026-09-11 10:11:00 |
| 192.163.145.0/24 | 16,820 | 2026-09-11 10:11:00 |
| 192.49.0.0/21 | 16,820 | 2026-09-11 10:11:00 |
| 192.49.133.0/24 | 16,816 | 2026-09-11 10:11:00 |
| 192.49.192.0/18 | 16,816 | 2026-09-11 10:11:00 |
| 192.49.134.0/24 | 16,814 | 2026-09-11 10:11:00 |
| 192.49.64.0/22 | 16,812 | 2026-09-11 10:11:00 |
| 192.49.33.0/24 | 16,809 | 2026-09-11 10:11:00 |
| 192.49.126.0/24 | 16,809 | 2026-09-11 10:11:00 |
| 192.49.128.0/22 | 16,809 | 2026-09-11 10:11:00 |
| 192.49.68.0/24 | 16,804 | 2026-09-11 10:11:00 |
| 192.49.55.0/24 | 16,800 | 2026-09-11 10:11:00 |
| 192.49.174.0/23 | 16,796 | 2026-09-11 10:11:00 |
| 192.49.120.0/22 | 16,796 | 2026-09-11 10:11:00 |
| 192.49.86.0/23 | 16,796 | 2026-09-11 10:11:00 |
| 192.49.20.0/24 | 16,795 | 2026-09-11 10:11:00 |
| 192.49.91.0/24 | 16,790 | 2026-09-11 10:11:00 |
| 192.49.160.0/21 | 16,787 | 2026-09-11 10:11:00 |
| 192.49.92.0/22 | 16,787 | 2026-09-11 10:11:00 |
| 192.49.168.0/23 | 16,785 | 2026-09-11 10:11:00 |
| 192.49.19.0/24 | 16,784 | 2026-09-11 10:11:00 |
| 192.49.22.0/24 | 16,779 | 2026-09-11 10:11:00 |
Showing top 50 of 52 announced prefixes by sample volume.
Frequently Asked Questions
What is AS375?
AS375 is an Autonomous System Number assigned to Tieto Oyj. 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 AS375 announce?
AS375 announces 87.0K IPv4 addresses distributed across 51 routed CIDR prefixes. The network is registered in Finland.
Who operates AS375?
AS375 is operated by Tieto Oyj. The organization is based in Finland. You can view all IP ranges and related ASNs on the organization page.
What country is AS375 registered in?
AS375 is registered in Finland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
