AS20904 — NETPLAZA-AS

AS20904 announces 18 IPv4 prefixes covering 27,136 addresses and 3 IPv6 prefixes.

About this network

The AS handle NETPLAZA-AS is held by Cinia Oy.

What it's used for

• The address space carries infrastructure and transit traffic, evidenced by netnames such as FI-CORENET-20010620 and CINIA registered to Cinia Oy.
• With 27136 IPv4 addresses announced across 20 prefixes and 25 observed neighbours, the ratio indicates a transit or network service provider role rather than a pure access network.

Notable

• All registrants for the largest prefixes are Cinia Oy, aligning perfectly with the AS holder.
• The address inventory is finely subdivided into multiple /21 and /22 blocks, suggesting internal segmentation for different services or customer segments.
• The AS has been observed in routing tables since 2001, indicating a long-standing presence in the Finnish internet infrastructure.

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

Announced prefixes

• 5.61.94.0/24
• 37.35.80.0/24
• 37.35.84.0/22
• 46.254.208.0/24
• 46.254.210.0/23
• 77.95.242.0/24
• 77.95.245.0/24
• 77.95.246.0/23
• 80.75.96.0/20
• 93.174.192.0/21
• 149.126.176.0/21
• 164.5.160.0/19
• 164.5.208.0/21
• 185.16.168.0/22
• 185.25.76.0/22
• 185.67.80.0/22
• 188.64.0.0/21
• 212.6.54.0/24
• 2a00:1a58::/32
• 2a00:74a0::/32
• 2a04:240::/29

Upstream networks

• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS42708 Glesys AB
• AS50304 Blix Solutions AS
• AS12552 GlobalConnect AB

Downstream networks

• AS208272 VR-Group Ltd
• AS51691 F-Solutions Oy
• AS60109 F-Solutions Oy
• AS206927 Bittium Technologies Oy
• AS2026 IDDQD-AS
• AS61990 Vaisala Oyj
• AS211215 Fibernet Finland Oy
• AS213524 Oulun Energia Oy
• AS198118 SGN Group Oy
• AS47983 Cinia Oy
• AS209682 Finavia Oyj
• AS50290 Ja viestintatekniikkakeskus Valtori
• AS395266 Keysight Technologies, Inc
• AS206860 LapIT Oy
• AS211799 Taivalkosken kunta

Adjacent networks

• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS208272 VR-Group Ltd
• AS51691 F-Solutions Oy
• AS60109 F-Solutions Oy
• AS206927 Bittium Technologies Oy
• AS2026 IDDQD-AS
• AS61990 Vaisala Oyj
• AS211215 Fibernet Finland Oy
• AS42708 Glesys AB
• AS50304 Blix Solutions AS
• AS12552 GlobalConnect AB
• AS213524 Oulun Energia Oy
• AS198118 SGN Group Oy
• AS47983 Cinia Oy
• AS209682 Finavia Oyj
• AS50290 Ja viestintatekniikkakeskus Valtori
• AS395266 Keysight Technologies, Inc
• AS211799 Taivalkosken kunta
• AS206860 LapIT Oy

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• DE-CIX Dusseldorf — Düsseldorf, Germany
• DE-CIX Munich — Munich, Germany
• DE-CIX Hamburg — Hamburg, Germany
• Tampere Region Exchange — Tampere, Finland