AS199508 — S1NETWORKS-AS S1 Networks Oy

Network type: residential

AS199508 announces 14 IPv4 prefixes covering 11,776 addresses and 3 IPv6 prefixes.

About this network

S1NETWORKS-AS is operated by S1 Networks Oy.

What it's used for

• The address space carries residential and business access traffic, evidenced by reverse DNS entries such as 62-220-225-255.s1net.fi and nip-226-254.welcomnet.fi.
• The AS announces 11,776 IPv4 addresses across 14 prefixes and 3 IPv6 prefixes, while maintaining 30 observed neighbours; this ratio indicates a regional access provider rather than a transit hub.
• Traffic consists of subscriber eyeballs for cable and DSL customers in the Helsinki region, consistent with the operator's business model as a regional ISP.

Notable

• Registrants for the majority of prefixes are S1 Networks Oy, with netnames like FI-S1NETWORKS-20061107; however, two prefixes (194.110.224.0/21 and 194.110.232.0/22) are registered to Metropolia University of Applied Sciences Ltd. under the netname HIT.
• The address inventory is fragmented into 14 distinct IPv4 prefixes, ranging from /21s to /24s, reflecting historical acquisitions and subdivisions of the network estate.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 45.8.128.0/22
• 62.220.224.0/22
• 62.220.252.0/22
• 85.194.236.0/23
• 89.41.48.0/24
• 89.42.43.0/24
• 91.90.48.0/21
• 185.11.208.0/22
• 185.195.149.0/24
• 185.195.150.0/23
• 194.110.224.0/21
• 194.110.232.0/22
• 195.20.149.0/24
• 195.192.250.0/23
• 2001:67c:2ce8::/48
• 2a01:b5a0::/32
• 2a03:6f40::/32

Upstream networks

• AS1299 Arelion Sweden AB
• AS47605 FNE-Finland Oy
• AS6939 Hurricane Electric LLC
• AS50304 Blix Solutions AS
• AS24482 SG.GS
• AS20764 CJSC RASCOM
• AS35280 F5 Networks SARL
• AS12552 GlobalConnect AB

Downstream networks

• AS207003 Web1 Oy
• AS203486 Palvelinpuisto Oy
• AS57692 Kapsi Internet-kayttajat ry
• AS45010 S1 Networks Oy
• AS215629 Viipurin Reaalikoulu Oy
• AS49866 Loopback Oy

Adjacent networks

• AS1299 Arelion Sweden AB
• AS47605 FNE-Finland Oy
• AS6939 Hurricane Electric LLC
• AS45010 S1 Networks Oy
• AS207003 Web1 Oy
• AS203486 Palvelinpuisto Oy
• AS57692 Kapsi Internet-kayttajat ry
• AS50304 Blix Solutions AS
• AS49866 Loopback Oy
• AS215629 Viipurin Reaalikoulu Oy
• AS20764 CJSC RASCOM
• AS24482 SG.GS
• AS12552 GlobalConnect AB
• AS35280 F5 Networks SARL
• AS33891 Core-Backbone GmbH

Routing security

• RPKI: 13 valid, 0 invalid and 4 not-found announcements; 14 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 20 route objects.
• Listed in as-sets: AS-RETN-ACTUAL-V6, AS-S1NET, AS-SET-FNE, AS-SET-FNE-V6, AS215629:AS-MAYK.

Internet exchanges

• Netnod Stockholm — Stockholm, Sweden
• Tampere Region Exchange — Tampere, Finland
• Netnod Sundsvall- Gävle — Sundsvall, Sweden