AS375 TIETOTIE-AS Tieto Oyj

TIETOTIE-AS Tieto Oyj · registered in Finland

IPv4 addresses87,04052 prefixes · 0.003% of announced IPv4

Rank in Finland#11largest network in FI by IPv4 space, of 280 · 0.70% of FI

Rank worldwide#2,053of 79,396 networks with IPv4

IPv616,384 x /481 prefixes

CountryFinland292 ASNs registered there

Open AS375 in ASN lookup Look up an IP in this network (131.207.0.1) All networks in Finland

IPv4 prefixes

All 52 prefixes, in address order.

131.207.0.0/17
192.49.0.0/21
192.49.9.0/24
192.49.10.0/24
192.49.13.0/24
192.49.19.0/24
192.49.20.0/24
192.49.22.0/24
192.49.33.0/24
192.49.36.0/22
192.49.40.0/21
192.49.48.0/22
192.49.52.0/23
192.49.55.0/24
192.49.56.0/21
192.49.64.0/22
192.49.68.0/24
192.49.70.0/23
192.49.72.0/24
192.49.73.0/24
192.49.78.0/24
192.49.81.0/24
192.49.86.0/23
192.49.88.0/23
192.49.91.0/24
192.49.92.0/22
192.49.96.0/20
192.49.112.0/22
192.49.117.0/24
192.49.119.0/24
192.49.120.0/22
192.49.124.0/23
192.49.126.0/24
192.49.128.0/22
192.49.133.0/24
192.49.134.0/24
192.49.136.0/23
192.49.139.0/24
192.49.140.0/23
192.49.142.0/24
192.49.144.0/24
192.49.146.0/24
192.49.148.0/22
192.49.152.0/21
192.49.160.0/21
192.49.168.0/23
192.49.170.0/24
192.49.173.0/24
192.49.174.0/23
192.49.176.0/20
192.49.192.0/18
192.163.145.0/24

IPv6 prefixes

All 1 prefix.

2a03:9b80::/34

Similar-sized networks in Finland

ASNNameIPv4 addresses

AS1926#8 UTANET-AS Tampere University Foundation131,072

AS214692#9 VALTORI-AS Valtion tieto- ja viestintatekniikkakeskus, TUVE-palvelut131,072

AS5411#10 Tieto Oyj90,624

AS202053#12 UPCLOUD UpCloud Ltd83,968

AS198024#13 FI-ISTEKKI-AS Istekki Oy82,944

AS29601#14 UPM-KYMMENE-AS UPM-Kymmene Oyj75,008

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources