AS31736 senseLAN GmbH

Switzerland SENSELAN-AS RIPE 19 IPv4 prefixes 9 IPv6 prefixes

IPv4 addresses

19,456

IPv6 /48 networks

1,900,545

RPKI

28 valid0 no ROA

Peers and downstreams

Holder

AS name: SENSELAN-AS
Description: senseLAN GmbH
Organisation: senseLAN GmbH
Abuse contact: abuse@senselan.ch
Assigned: 2004-07-27
Registered: 2004-07-28
Record last changed: 2026-01-09 08:13 UTC

171.33.243.0/24 185.20.144.0/22 185.230.116.0/22 185.5.32.0/22 185.64.116.0/22 185.77.92.0/23 185.77.94.0/24 185.77.95.0/24 185.78.188.0/22 185.82.60.0/22 185.86.28.0/22 193.135.30.0/24 194.153.188.0/23 195.144.30.0/24 203.16.207.0/24 212.108.104.0/24 45.8.240.0/22 77.37.8.0/24 83.222.128.0/19

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 90/100

pass	Prefixes covered by valid ROAs 28 of 28 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 9 IPv6 prefixes.	15/15
pass	More than one upstream 5 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@senselan.ch 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 2026-01-09.	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/31736"><img src="https://ip-fd.net/badge/asn/31736/health.svg" alt="AS31736 network health on IP-FD.net"></a>

Markdown

[![AS31736 network health](https://ip-fd.net/badge/asn/31736/health.svg)](https://ip-fd.net/asn/31736)

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

Routing changes

Last 30 days

2026-10-04 11:17 UTC	Neighbour gone	AS58299	upstream
2026-10-04 11:17 UTC	Relationship changed	AS5405	upstream to peer
2026-10-04 11:17 UTC	Relationship changed	AS9002	upstream to peer
2026-10-04 11:17 UTC	Relationship changed	AS48362	upstream to peer
2026-10-04 11:17 UTC	Relationship changed	AS47147	upstream to peer
2026-10-04 11:17 UTC	Relationship changed	AS4601	upstream to peer
2026-10-04 11:17 UTC	Relationship changed	AS39351	upstream to peer
2026-10-04 11:17 UTC	Relationship changed	AS34019	upstream to peer
2026-10-04 11:17 UTC	Relationship changed	AS33891	upstream to peer
2026-10-04 11:17 UTC	Relationship changed	AS24961	upstream to peer
2026-10-04 11:17 UTC	Relationship changed	AS1836	upstream to peer
2026-10-04 11:17 UTC	Relationship changed	AS1764	upstream to peer

WHOIS

aut-num:        AS31736
as-name:        SENSELAN-AS
org:            ORG-sG1-RIPE
descr:          senseLAN GmbH
remarks:        Duedingen, Switzerland
remarks:        
remarks:        We have an open peering policy. Feel free to contact us if you
remarks:        would like to peer with us:
remarks:        noc@senselan.ch
remarks:        
remarks:        We are present at the Swiss Internet Exchange:
remarks:        https://www.swissix.net
remarks:        
remarks:        T R A N S I T
remarks:        
remarks:        
remarks:        C U S T O M E R S
remarks:        
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remarks:        
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remarks:        
remarks:        AS48461: stepping stone GmbH
remarks:        
remarks:        P E E R I N G S
remarks:        
remarks:        AS8758: Interway Communication GmbH
remarks:        AS29097: Hostpoint GmbH
remarks:        AS28717: Zen Systems
remarks:        AS8758: Interway Communication GmbH
remarks:        AS13030: Init Seven AG
remarks:        AS20634: Telecom Liechtenstein AG
remarks:        AS29691: Nine Internet Solutions AG
remarks:        AS1836: green.ch AG The Internet Company
remarks:        AS21069: Metanet GmbH
remarks:        AS42: Packet Clearing House
remarks:        AS9044: Solnet
remarks:        AS15623: Cyberlink
remarks:        AS31424: nexellent ag
remarks:        AS4589: easynet AG
remarks:        AS13250: Backbone Solutions AG
remarks:        AS6772: Improware Network Services
remarks:        AS15600: Finecom Telecommunications AG
remarks:        AS15576: NTS Workspace AG
remarks:        AS8037: dataway GmbH
remarks:        AS3856: Packet Clearing House
remarks:        AS15600: Finecom Telecommunications AG
remarks:        AS29655: Trenka Informatik
remarks:        AS24951: Everyware
remarks:        AS15469: Warinet Global Services AG
remarks:        AS21232: GGA Maur
remarks:        AS24889: Monzoon Networks
remarks:        AS9092: Open Systems
remarks:        AS6776: TheNet Internet Services
remarks:        AS6775: Global Networks Schweiz AG
remarks:        AS15598: IP Exchange GmbH
remarks:        AS15479: Fibrelac
remarks:        AS35223: Newsnet AG
remarks:        AS16242: mhs@internet AG
remarks:        AS44706: Network Design GmbH
remarks:        AS33845: BIT/OFIT
remarks:        AS34578: Bedag Informatik AG
remarks:        AS12399: ScanPlus GmbH
remarks:        AS16111: Online Consulting
remarks:        AS34554: Antares Kommunikationstechnik
remarks:        AS20940: Akamai
remarks:        AS39145: Kyberna AG
remarks:        AS35256: Webtuning GmbH
remarks:        AS35206: NovaTrend Services GmbH
remarks:        AS31662: Aurax Connecta AG
remarks:        AS28859: Zugernet (Hofmann Informatik)
remarks:        AS20893: SYSTEM-CLINCH Internet Services GmbH
remarks:        AS39040: Basis06 AG
remarks:        AS34288: Kantonsschule Zug
remarks:        AS12360: VTX
remarks:        AS33958: Global Supply Chain Finance AG
remarks:        AS9153: Burstfire Networks Ltd
remarks:        AS39764: Dolphin Systems AG
remarks:        AS20932: SIG - IP-MAN.NET
remarks:        AS8833: GPS Technik AG
remarks:        AS41666: Translumina Networks AG
remarks:        AS16221: Origon AG
remarks:        AS34960: Netcetera AG
remarks:        AS41913: Computerline GmbH
remarks:        AS16265: Leaseweb
remarks:        AS15517: Netstream AG
remarks:        AS45037: Hispaweb Network
remarks:        AS25563: Webland AG
remarks:        AS44706: Network Design GmbH
remarks:        AS41692: OpenCarrier e.G.
remarks:        AS12347: VirtualTec Ltd.
remarks:        AS12347: VirtualTec Ltd.
remarks:        AS9002: RETN Ltd.
remarks:        AS42346: EBM Telecom AG
remarks:        AS8086: Microsoft
remarks:        AS15716: Sygroup
remarks:        AS33926: Eurotransit
remarks:        AS48039: KGT new media
remarks:        AS35366: ISPpro Internet KG
remarks:        AS49237: Dreamlab
remarks:        AS48885: Neocarrier
remarks:        AS6939: Hurricane Electric
remarks:        AS49983: Mironet
remarks:        AS39912: i3b Internet Breitband Betriebs GmbH
remarks:        AS21385: Trusted Network GmbH
remarks:        AS42476: SwissIX Route Server
remarks:        AS42476: SwissIX Route Server
remarks:        
admin-c:        HL4351-RIPE
tech-c:         OH360-RIPE
tech-c:         KB2401-RIPE
mnt-by:         LIR-CH-SENSELAN-MNT
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
created:        2004-07-28T13:28:55Z
last-modified:  2026-01-09T08:13:18Z
source:         RIPE
% 202 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/31736

const res = await fetch('https://ip-fd.net/api/v1/asn/31736', {
  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/31736', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/31736');
curl_setopt($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/31736", 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))

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