AS39521 TNGNET B.V.

Netherlands TNGNET RIPE 42 IPv4 prefixes 4 IPv6 prefixes

IPv4 addresses

20,736

IPv6 /48 networks

659,456

RPKI

46 valid0 no ROA

Peers and downstreams

110

Holder

AS name: TNGNET
Description: TNGNET B.V.
Organisation: TNGNET B.V.
Registered in: Roosendaal, Netherlands
Abuse contact: abuse@tngnet.com
Assigned: 2015-03-08
Registered: 2016-06-24
Record last changed: 2026-04-20 19:06 UTC

AS559	SWITCH Switch
AS1103	SURF B.V. SURFNET-NL
AS1140	Stichting Internet Domeinregistratie Nederland SIDN
AS1764	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH NEXTLAYER-AS
AS1828	Unitas Global UNITAS
AS3170	VeloxServ Communications Ltd VELOXSERV
AS3214	xTom GmbH XTOM
AS3333	Reseaux IP Europeens Network Coordination Centre (RIPE NCC) RIPE-NCC-AS
AS3399	Obenet AB OBE-NET
AS5405	Inter.link GmbH INTERDOTLINK
AS6057	Administracion Nacional de Telecomunicaciones AS6057
AS6204	TMRC GROUP SRL ZET-NET
AS6424	EDGOO NETWORKS UNIPESSOAL LDA EDGOO
AS6663	Euroweb Romania S.R.L. TTI-NET
AS6797	GlobalConnect AB GLOBALCONNECT-NET
AS7195	EDGEUNO S.A.S AS7195
AS8218	Zayo Infrastructure France SA NEO-ASN
AS8298	IPng Networks GmbH IPNG
AS8529	Zain Omantel International FZ-LLC OMANTEL-AS
AS8966	EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC Etisalat-AS
AS9002	RETN Limited RETN-AS
AS9044	BSE Software GmbH SOLNET
AS9198	JSC Kazakhtelecom KAZTELECOM-AS
AS12637	SEEWEB s.r.l. SEEWEB
AS12779	IT.Gate S.p.A. ITGATE
AS12859	BIT BV NL-BIT
AS12969	Ljosleidarinn ehf Vodafone_Iceland
AS13004	Serbian Open Exchange DOO SOX
AS13237	euNetworks GmbH LAMBDANET-AS
AS14630	Invesco Group Services, Inc. INVESCO
AS14907	Wikimedia Foundation Inc. WIKIMEDIA
AS15547	netplus.ch SA NETPLUS
AS15605	Connesi s.p.a. CONNESI
AS15958	CETIN Ltd. Belgrade CETIN_doo_AS
AS17639	Converge ICT Solutions Inc. CONVERGE-AS
AS20766	Association "Gitoyen" GITOYEN-MAIN-AS
AS20932	Services Industriels de Geneve SIG-ST
AS24381	BGP.Exchange BGPE-AS
AS24482	SG.GS SGGS-AS-AP
AS24961	WIIT AG MYLOC-AS
AS25091	IP-Max SA IP-Max
AS25160	Vorboss Limited VORBOSS
AS25220	equada network GmbH GLOBALNOC-AS
AS28910	"Uzbektelekom" Joint Stock Company INTAL-ASN
AS28917	Fiord Networks, UAB Fiord-AS
AS29075	IELO-LIAZO SERVICES SAS IELO
AS29140	Hostserver GmbH HOSTSERVER-AS
AS29632	Netassist International EOOD NASSIST-AS
AS31800	DALnet DALNET
AS33891	Core-Backbone GmbH CORE-BACKBONE
AS34019	Hivane Association HIVANE
AS34177	Celeste SAS CELESTE-AS
AS34288	Kantonsschule Zug AS34288
AS35280	F5 Networks SARL F5
AS35598	INETCOM CARRIER LLC INETCOM
AS36236	NetActuate, Inc NETACTUATE
AS37100	SEACOM Limited
AS37468	Angola Cables
AS37721	Virtual Technologies & Solutions
AS39122	Blacknight Internet Solutions Limited BLACKNIGHT-AS
AS39249	Netassist International EOOD KICUA-AS
AS39351	31173 Services AB ESAB-AS
AS39686	Eurofiber Nederland BV AS-EUROFIBER
AS41327	Fiber Telecom S.p.A. FIBERTELECOM-AS
AS42295	TBISS Ltd TBISS-AS
AS42541	Fiberby ApS FIBERBY
AS44901	Belcloud LTD belcloud
AS45489	Sri Lanka Telecom PLC, GLobal Peering SLT-GLOBAL
AS47147	Anexia Cloud Solutions GmbH AS-ANX
AS47690	TNGNET B.V. TNGNET
AS47692	Nessus GmbH NESSUS
AS48185	team.blue NV team_blue
AS48362	Tkswf TKSWF-AS
AS48919	UACITY Ltd. UA-CITY-AS
AS49434	FBW NETWORKS SAS FBWNETWORKS
AS49544	i3D.net B.V i3Dnet
AS49605	Digital Telecommunication Services S.r.l. DTS-AS
AS49673	Truenetwork LLC TRUENETWORK
AS50300	CustodianDC Limited CUSTDC
AS50304	Blix Solutions AS BLIX
AS50629	LWLcom GmbH LWLCOM
AS50673	Serverius Holding B.V. Serverius-as
AS50763	Robert McKay MCKAYCOM
AS51184	Fonira Telekom GmbH FONIRA
AS51185	MainStreaming SpA MAINSTREAMING-AS
AS51873	Arcade Solutions AG AS-ARCADE
AS56911	Warian S.R.L. ASN-WARIAN
AS56987	ABACLOUDA SAS AS-ABACLOUDA
AS60117	Host Sailor Ltd HS
AS60171	AFR-IX TELECOM S.A. AFRIX-AS
AS61060	NXTcom Nederland BV XRCservices
AS61573	IP TELECOM AS61573
AS137409	GSL Networks Pty LTD GSLNETWORKS-AS-AP
AS199524	G-Core Labs S.A. GCORE
AS199938	Netzwerge GmbH NETZWERGE
AS200612	Gulf Bridge International Inc. GulfBridgeInternational
AS205112	PHILUNET GmbH PHILUNET
AS208972	GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI gibirnet-tr
AS209823	Enki Multimedia EURL ENKI-AS
AS212635	Jurrian van Iersel AS212635
AS213241	TECHIT.BE SRL TECHIT
AS213784	TNGNET B.V. TNGNET
AS271253	LINK BRASIL TELECOMUNICACOES LTDA AS271253

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 100/100

pass	Prefixes covered by valid ROAs 46 of 46 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 4 IPv6 prefixes.	15/15
pass	More than one upstream 6 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@tngnet.com is published.	15/15
pass	Publishes a geofeed A geofeed (RFC 8805) tells where the address space is used.	10/10
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 2026-04-20.	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/39521"><img src="https://ip-fd.net/badge/asn/39521/health.svg" alt="AS39521 network health on IP-FD.net"></a>

Markdown

[![AS39521 network health](https://ip-fd.net/badge/asn/39521/health.svg)](https://ip-fd.net/asn/39521)

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

Routing changes

Last 30 days

2026-10-05 13:10 UTC	Neighbour gone	AS264409	upstream
2026-10-05 13:10 UTC	Neighbour gone	AS58299	peer
2026-10-05 13:10 UTC	Neighbour gone	AS56655	upstream
2026-10-05 13:10 UTC	Neighbour gone	AS50869	upstream
2026-10-05 13:10 UTC	Neighbour gone	AS41051	upstream
2026-10-05 13:10 UTC	Neighbour gone	AS31027	peer
2026-10-05 13:10 UTC	Neighbour gone	AS18106	peer
2026-10-05 13:10 UTC	Relationship changed	AS9198	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS9044	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS9002	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS8966	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS8298	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS7195	upstream to peer
2026-10-05 13:10 UTC	New neighbour	AS6797	peer
2026-10-05 13:10 UTC	Relationship changed	AS6663	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS6204	upstream to peer
2026-10-05 13:10 UTC	New neighbour	AS6057	peer
2026-10-05 13:10 UTC	Relationship changed	AS60171	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS56911	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS5405	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS50673	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS50304	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS49434	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS48362	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS47692	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS47147	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS42295	upstream to peer
2026-10-05 13:10 UTC	New neighbour	AS39686	peer
2026-10-05 13:10 UTC	Relationship changed	AS39351	upstream to peer
2026-10-05 13:10 UTC	New neighbour	AS39249	peer
2026-10-05 13:10 UTC	Relationship changed	AS37468	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS37100	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS35280	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS34177	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS34019	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS33891	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS29632	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS25091	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS20766	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS1764	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS15958	upstream to peer
2026-10-05 13:10 UTC	Relationship changed	AS137409	upstream to peer
2026-10-05 13:10 UTC	Prefix gone	82.23.191.0/24
2026-10-05 13:10 UTC	Prefix gone	82.21.112.0/24
2026-10-05 13:10 UTC	Prefix gone	167.148.40.0/24
2026-10-05 13:10 UTC	New prefix	45.95.40.0/24

WHOIS

aut-num:        AS39521
as-name:        TNGNET
org:            ORG-TB92-RIPE
remarks:        
remarks:        
remarks:        * TRANSIT
remarks:        ** Liberty Global
remarks:        
remarks:        ** Cogent
remarks:        
remarks:        ** Hurricane Electric
remarks:        
remarks:        ** Orange
remarks:        
remarks:        ** Zappie Host
remarks:        
remarks:        ** NETROUTING
remarks:        
remarks:        
remarks:        * PEERING
remarks:        ** DATA-IX
remarks:        
remarks:        ** Global-IX
remarks:        
remarks:        ** Frys-IX
remarks:        
remarks:        ** AMS-IX
remarks:        
import-via:     AS6777 from AS-ANY accept ANY
export-via:     AS6777 to AS-ANY announce AS-TNGNET
remarks:        
remarks:        
remarks:        
remarks:        * Integrated Services
remarks:        ** NAWAS
remarks:        
remarks:        ** TNGNET AS47690
remarks:        
remarks:        ** TNGNET AS213784
remarks:        
remarks:        
remarks:        * CUSTOMERS
remarks:        AS-TNGNET-CUSTOMERS
remarks:        
admin-c:        TNFR-RIPE
tech-c:         TNOR-RIPE
status:         ASSIGNED
mnt-by:         TNGNET-MNT
mnt-by:         RIPE-NCC-END-MNT
created:        2016-06-24T11:52:03Z
last-modified:  2026-04-20T19:06:03Z
source:         RIPE
% 30 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/39521

const res = await fetch('https://ip-fd.net/api/v1/asn/39521', {
  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/39521', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/39521');
curl_setopt($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/39521", 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
AS5511	Orange S.A. Opentransit
AS6206	Netrouting B.V. NETROUTING-AS
AS6830	Liberty Global Europe Holding B.V. LibertyGlobal
AS6939	Hurricane Electric LLC HURRICANE
AS61138	Zappie Host LLC ZAPPIE-HOST-AS