AS1741 Tieteen tietotekniikan keskus Oy

Finland FUNETAS RIPE 40 IPv4 prefixes 2 IPv6 prefixes

IPv4 addresses

609,792

IPv6 /48 networks

65,536

RPKI

12 valid30 no ROA

Peers and downstreams

Holder

AS name: FUNETAS
Description: Tieteen tietotekniikan keskus Oy
Organisation: CSC - Tieteen tietotekniikan keskus Oy
Registered in: Espoo, Finland
Abuse contact: cert@cert.funet.fi
Assigned: 1993-08-31
Registered: 2002-07-09
Record last changed: 2026-09-03 05:15 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 67/100

partly	Prefixes covered by valid ROAs 12 of 42 announced prefixes are RPKI valid, 30 have no ROA.	7/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 2 IPv6 prefixes.	15/15
partly	More than one upstream 1 upstream seen in BGP.	5/10
pass	Working abuse contact cert@cert.funet.fi is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
pass	Registry record maintained Last changed 2026-09-03.	5/5

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/1741"><img src="https://ip-fd.net/badge/asn/1741/health.svg" alt="AS1741 network health on IP-FD.net"></a>

Markdown

[![AS1741 network health](https://ip-fd.net/badge/asn/1741/health.svg)](https://ip-fd.net/asn/1741)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

2026-10-04 09:38 UTC	Neighbour gone	AS39857	downstream
2026-10-04 09:38 UTC	Relationship changed	AS5405	upstream to peer
2026-10-04 09:38 UTC	Relationship changed	AS5400	upstream to peer
2026-10-04 09:38 UTC	Relationship changed	AS50304	upstream to peer
2026-10-04 09:38 UTC	Relationship changed	AS42708	upstream to peer
2026-10-04 09:38 UTC	Relationship changed	AS39351	upstream to peer
2026-10-04 09:38 UTC	New neighbour	AS15830	peer
2026-10-04 09:38 UTC	Relationship changed	AS12552	upstream to peer

WHOIS

aut-num:        AS1741
as-name:        FUNETAS
org:            ORG-FF1-RIPE
admin-c:        FA1183-RIPE
tech-c:         FH437-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         AS1741-MNT
created:        2002-07-09T11:31:34Z
last-modified:  2026-09-03T05:15:57Z
source:         RIPE
% 233 routing policy lines (import/export) not shown

Routing data

Updated just now

Registry record

Fetched just now from RIPE

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/1741

const res = await fetch('https://ip-fd.net/api/v1/asn/1741', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/1741', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/1741');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/1741", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Works without a key at a lower rate. Get a free key.

AS565	VTT Technical Research Centre of Finland Ltd VTT-AS
AS1926	Tampere University Foundation UTANET-AS
AS15496	University Aalto
AS39098	Bank Of Finland BOF-AS
AS39662	Finnish Transport and Communications Agency FI-FICORA-AS
AS43558	Finnish Transport and Communications Agency FICORA-FI-ANYCAST
AS207282	HUS Group HUH

AS5400	British Telecommunications Limited BT
AS5405	Inter.link GmbH INTERDOTLINK
AS6667	Elisa Oyj EUNET-FINLAND
AS12552	GlobalConnect AB GlobalConnect-AS12552
AS15830	Equinix (EMEA) Acquisition Enterprises B.V. Equinix
AS39351	31173 Services AB ESAB-AS
AS42708	Glesys AB GLESYS
AS50304	Blix Solutions AS BLIX