AS49870 Alsycon B.V.

Netherlands AS49870-BV RIPE 23 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

8,704

IPv6 /48 networks

524,288

RPKI

16 valid8 no ROA

Peers and downstreams

Holder

AS name: AS49870-BV
Description: Alsycon B.V.
Organisation: Alsycon B.V.
Abuse contact: abuse@as49870.net
Assigned: 2019-11-13
Registered: 2019-11-14
Record last changed: 2026-09-14 17:03 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 82/100

partly	Prefixes covered by valid ROAs 16 of 24 announced prefixes are RPKI valid, 8 have no ROA.	17/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 1 IPv6 prefix.	15/15
pass	More than one upstream 6 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@as49870.net 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 2026-09-14.	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/49870"><img src="https://ip-fd.net/badge/asn/49870/health.svg" alt="AS49870 network health on IP-FD.net"></a>

Markdown

[![AS49870 network health](https://ip-fd.net/badge/asn/49870/health.svg)](https://ip-fd.net/asn/49870)

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

Routing changes

Last 30 days

2026-10-04 12:47 UTC	Neighbour gone	AS137409	upstream
2026-10-04 12:47 UTC	Neighbour gone	AS58299	peer
2026-10-04 12:47 UTC	Neighbour gone	AS56911	upstream
2026-10-04 12:47 UTC	Neighbour gone	AS50869	upstream
2026-10-04 12:47 UTC	Neighbour gone	AS44901	peer
2026-10-04 12:47 UTC	Neighbour gone	AS41051	upstream
2026-10-04 12:47 UTC	Neighbour gone	AS20764	upstream
2026-10-04 12:47 UTC	New neighbour	AS263152	peer
2026-10-04 12:47 UTC	New neighbour	AS218859	downstream
2026-10-04 12:47 UTC	Relationship changed	AS9498	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS9044	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS8298	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS6204	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS62000	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS61049	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS58057	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS5405	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS50673	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS50629	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS41441	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS39686	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS39351	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS34927	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS34019	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS3303	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS3214	upstream to peer
2026-10-04 12:47 UTC	New neighbour	AS31500	peer
2026-10-04 12:47 UTC	Relationship changed	AS29075	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS286	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS25091	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS22356	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS20766	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS14840	upstream to peer
2026-10-04 12:47 UTC	Relationship changed	AS1103	upstream to peer
2026-10-04 12:47 UTC	Prefix gone	185.142.130.0/24

WHOIS

aut-num:        AS49870
as-name:        AS49870-BV
org:            ORG-AB247-RIPE
admin-c:        AB40558-RIPE
tech-c:         AB40558-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         Alsycon-BV
created:        2019-11-14T08:50:00Z
last-modified:  2026-09-14T17:03:15Z
source:         RIPE
% 10 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/49870

const res = await fetch('https://ip-fd.net/api/v1/asn/49870', {
  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/49870', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/49870');
curl_setopt($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/49870", 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.

AS174
AS3257	GTT Communications Inc. GTT-BACKBONE
AS6939	Hurricane Electric LLC HURRICANE
AS9002	RETN Limited RETN-AS
AS13194	UAB "Bite Lietuva" BITE
AS57717	FiberXpress BV FBX-AS

AS7489	HostUS HOSTUS-GLOBAL-AS
AS49305	Alsycon B.V. ALSYCON-BV
AS51942	EK-Media B.V. EKMEDIA
AS208911	Alsycon B.V. ALSYCON-BV
AS209101	IP Vendetta Inc. ipvendettainc
AS218859	IT HELP LCC ALLSYSNET

AS286	Kpn KPN
AS1103	SURF B.V. SURFNET-NL
AS1257	Tele2 Sverige AB SWIPNET
AS3214	xTom GmbH XTOM
AS3303	Swisscom (Schweiz) AG SWISSCOM
AS3399	Obenet AB OBE-NET
AS5405	Inter.link GmbH INTERDOTLINK
AS6204	TMRC GROUP SRL ZET-NET
AS6424	EDGOO NETWORKS UNIPESSOAL LDA EDGOO
AS8298	IPng Networks GmbH IPNG
AS9044	BSE Software GmbH SOLNET
AS9498	BHARTI Airtel Ltd. BBIL-AP
AS12859	BIT BV NL-BIT
AS14840	BR.Digital Telecom AS14840
AS20766	Association "Gitoyen" GITOYEN-MAIN-AS
AS21412	UAB "Cgates" CGATES-AS
AS22356	Durand do Brasil Ltda AS22356
AS24482	SG.GS SGGS-AS-AP
AS24961	WIIT AG MYLOC-AS
AS25091	IP-Max SA IP-Max
AS28917	Fiord Networks, UAB Fiord-AS
AS29075	IELO-LIAZO SERVICES SAS IELO
AS31500	Global Network Management Inc GNM-AS
AS34019	Hivane Association HIVANE
AS34927	iFog GmbH iFog-GmbH
AS37721	Virtual Technologies & Solutions
AS39122	Blacknight Internet Solutions Limited BLACKNIGHT-AS
AS39351	31173 Services AB ESAB-AS
AS39686	Eurofiber Nederland BV AS-EUROFIBER
AS41327	Fiber Telecom S.p.A. FIBERTELECOM-AS
AS41441	Serverius Holding B.V. Speed-IX
AS49544	i3D.net B.V i3Dnet
AS50629	LWLcom GmbH LWLCOM
AS50673	Serverius Holding B.V. Serverius-as
AS56662	Eutpnet EUTPNET
AS58057	Securebit AG SECUREBIT
AS61049	Exascale Ltd EXASCALE
AS62000	SERVERD SAS AS62000
AS62167	Tismi BV Tismi
AS198150	SIACOM JSC SIACOM-AS
AS199524	G-Core Labs S.A. GCORE
AS202365	Omer GOLGELI Chronos
AS209823	Enki Multimedia EURL ENKI-AS
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD level86
AS263152	MIGO TELECOM AS263152
AS271253	LINK BRASIL TELECOMUNICACOES LTDA AS271253