Autonomous System
AS375 Tieto Oyj
BusinessActiveFinlandRIPE
AS375 (TIETOTIE-AS) is a business network operated by Tieto Oyj in Finland, registered with RIPE. It has 52 IPv4 prefixes with 87,296 addresses and 1 IPv6 prefix, which makes it the 2,521st largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses87,296in 52 prefixes
IPv6 prefixes1≈ 2.0 × 10²⁸ addresses
Size rank#2,521of 82,200 active ASNs
Details
OrganizationTieto Oyj
AS nameTIETOTIE-AS
Websitetietoevry.com
Country Finland (FI)
Network typeBusiness
RegistryRIPE
Abuse contactabuse@tietoevry.com
Registered2002-08-21
Last updated2026-01-15
IPv4 prefixes
52 prefixes · 87,296 addresses| Network | Addresses | First – last address |
|---|---|---|
| 131.207.0.0/17 | 32,768 | 131.207.0.0 – 131.207.127.255 |
| 192.49.192.0/18 | 16,384 | 192.49.192.0 – 192.49.255.255 |
| 192.49.96.0/20 | 4,096 | 192.49.96.0 – 192.49.111.255 |
| 192.49.176.0/20 | 4,096 | 192.49.176.0 – 192.49.191.255 |
| 192.49.0.0/21 | 2,048 | 192.49.0.0 – 192.49.7.255 |
| 192.49.40.0/21 | 2,048 | 192.49.40.0 – 192.49.47.255 |
| 192.49.56.0/21 | 2,048 | 192.49.56.0 – 192.49.63.255 |
| 192.49.152.0/21 | 2,048 | 192.49.152.0 – 192.49.159.255 |
| 192.49.160.0/21 | 2,048 | 192.49.160.0 – 192.49.167.255 |
| 192.49.36.0/22 | 1,024 | 192.49.36.0 – 192.49.39.255 |
| 192.49.48.0/22 | 1,024 | 192.49.48.0 – 192.49.51.255 |
| 192.49.64.0/22 | 1,024 | 192.49.64.0 – 192.49.67.255 |
| 192.49.92.0/22 | 1,024 | 192.49.92.0 – 192.49.95.255 |
| 192.49.112.0/22 | 1,024 | 192.49.112.0 – 192.49.115.255 |
| 192.49.120.0/22 | 1,024 | 192.49.120.0 – 192.49.123.255 |
| 192.49.128.0/22 | 1,024 | 192.49.128.0 – 192.49.131.255 |
| 192.49.148.0/22 | 1,024 | 192.49.148.0 – 192.49.151.255 |
| 192.49.52.0/23 | 512 | 192.49.52.0 – 192.49.53.255 |
| 192.49.70.0/23 | 512 | 192.49.70.0 – 192.49.71.255 |
| 192.49.72.0/23 | 512 | 192.49.72.0 – 192.49.73.255 |
| 192.49.86.0/23 | 512 | 192.49.86.0 – 192.49.87.255 |
| 192.49.88.0/23 | 512 | 192.49.88.0 – 192.49.89.255 |
| 192.49.124.0/23 | 512 | 192.49.124.0 – 192.49.125.255 |
| 192.49.136.0/23 | 512 | 192.49.136.0 – 192.49.137.255 |
| 192.49.140.0/23 | 512 | 192.49.140.0 – 192.49.141.255 |
131.207.0.0/17 192.49.192.0/18 192.49.96.0/20 192.49.176.0/20 192.49.0.0/21 192.49.40.0/21 192.49.56.0/21 192.49.152.0/21 192.49.160.0/21 192.49.36.0/22 192.49.48.0/22 192.49.64.0/22 192.49.92.0/22 192.49.112.0/22 192.49.120.0/22 192.49.128.0/22 192.49.148.0/22 192.49.52.0/23 192.49.70.0/23 192.49.72.0/23 192.49.86.0/23 192.49.88.0/23 192.49.124.0/23 192.49.136.0/23 192.49.140.0/23
The 25 largest of 52. The API and the database have all of them.
IPv6 prefixes
1 prefix- 2a03:9b80::/34
2a03:9b80::/34
Query AS375 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS375&key=YOUR_API_KEY"Any address in its prefixes resolves to AS375, with or without a key:
curl "https://api.ipapi.is/?q=131.207.0.1"