AS number details

AS1103

SURF B.V. · surf.nl

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AS1103 – SURF B.V.

Field	Value
Country	Netherlands
Website	surf.nl
Hosted domains	9,246
Number of IPv4	6,155,008
Number of IPv6	633,826,509,039,934,315,377,526,308,864
ASN type	Education
Registry	ripe
Allocated	22 years ago on Sep 23, 2002
Updated	9 months ago on Jul 20, 2023

Netblock	Company	Num of IPs
129.125.0.0/16	Groningen	65,536
130.112.0.0/16	Westerduinweg 3	65,536
130.37.0.0/16	Vrije Universiteit Amsterdam	65,536
131.174.0.0/16	Radboud Universiteit Nijmegen	65,536
131.211.0.0/16	Heidelberglaan 8	65,536
131.224.0.0/16	Rijksinstituut voor Volksgezondheid en Milieuhygiene	65,536
132.229.0.0/16	P.O. box 9500	65,536
134.221.0.0/16	Dutch organization for applied scientific research	65,536
136.231.0.0/16	Stichting Deltares	65,536
137.120.0.0/16	P.O.Box 616, 6200 MD, Maastricht, The Netherlands	65,536
137.224.0.0/16	Wageningen Universiteit	65,536
137.56.0.0/16	Universiteit van Tilburg	65,536
139.63.0.0/16	Dutch organization for applied scientific research	65,536
141.252.0.0/16	Noordelijke Hogeschool Leeuwarden	65,536
143.121.0.0/16	Universitair Medisch Centrum Utrecht	65,536
145.0.0.0/16	SURFnet bv	65,536
145.100.0.0/15	SURFsara	131,072
145.1.0.0/17	Stichting NIOZ, Koninklijk Nederlands Instituut voor Onderzoek der Zee	32,768
145.102.0.0/16	SURFnet bv	65,536
145.103.0.0/16	Stichting GlasLokaal	65,536
145.107.0.0/16	SURF B.V.	65,536
145.107.24.0/22	Radboud University Nijmegen	1,024
145.108.0.0/16	Vrije Universiteit Amsterdam	65,536
145.116.128.0/18	Radboud University Nijmegen	16,384
145.116.192.0/20	Zeeuwse Bibliotheek	4,096
145.116.224.0/19	ROC Oost-Nederland	8,192
145.116.64.0/18	ROC Mondriaan	16,384
145.117.0.0/16	Academic Medical Centre	65,536
145.118.0.0/16	SURFnet bv	65,536
145.120.0.0/14	SURFnet bv	262,144
145.124.0.0/15	Stichting ASTRON	131,072
145.126.0.0/16	SURFnet bv	65,536
145.127.0.0/17	Universiteit Maastricht (UM)	32,768
145.136.0.0/15	Hogeschool Rotterdam & Omstreken	131,072
145.137.128.0/18	Radboud Universiteit Nijmegen	16,384
145.138.0.0/16	ROC Aventus	65,536
145.140.0.0/14	SURF B.V.	262,144
145.144.0.0/12	SURFnet bv	1,048,576
145.19.0.0/16	Hogeschool Zeeland Network	65,536
145.20.0.0/16	Open Universiteit	65,536
145.2.0.0/15	Saxion Hogeschool IJselland te Deventer	131,072
145.23.0.0/16	Koninklijk Nederlands Meteorologisch Instituut	65,536
145.24.0.0/16	Hogeschool Rotterdam & Omstreken	65,536
145.28.0.0/15	Hogeschool van Amsterdam	131,072
145.33.0.0/16	Hanzehogeschool Groningen	65,536
145.37.0.0/16	Hanzehogeschool Groningen	65,536
145.38.0.0/15	SURFsara reken cluster	131,072
145.44.0.0/16	Christelijke Hogeschool Windesheim	65,536
145.48.0.0/15	Avans Hogeschool	131,072
145.5.0.0/16	Erasmus University Rotterdam	65,536
145.51.0.0/16	Hogeschool Rotterdam & Omstreken	65,536
145.52.0.0/16	Haagse Hogeschool	65,536
145.74.0.0/15	Hogeschool van Arnhem en Nijmegen	131,072
145.76.0.0/16	Hogeschool Enschede	65,536
145.81.0.0/16	SURFnet bv	65,536
145.85.0.0/16	Fontys Hogescholen	65,536
145.88.0.0/15	Leiden University Medical Centre	131,072
145.90.0.0/16	SURFnet bv	65,536
145.9.0.0/16	Deltares	65,536
145.91.0.0/16	Hogeschool Zuyd	65,536
145.92.0.0/15	Hogeschool van Amsterdam	131,072
145.95.0.0/16	SURFnet bv	65,536
145.96.0.0/16	SURFnet bv	65,536
145.97.0.0/20	SURF B.V.	4,096
145.97.128.0/18	Rijks Universiteit Groningen	16,384
145.97.16.0/22	Hogeschool Leiden	1,024
145.97.192.0/18	Stichting Sociale Huisvesting Utrecht	16,384
145.97.20.0/22	SURFnet SURFcloud	1,024
145.97.24.0/21	Radboud University Nijmegen	2,048
145.97.48.0/20	ROC Oost-Nederland	4,096
145.97.64.0/18	ROC Oost-Nederland	16,384
145.98.0.0/16	SURFnet bv	65,536
156.83.0.0/16	Erasmus MC	65,536
192.104.140.0/24	Centraal Planbureau	256
192.16.188.0/23	SURFnet bv	512
192.31.231.0/24	Vrije Universiteit	256
192.33.36.0/24	Vrije Universiteit	256
192.42.113.0/24	SURFnet bv	256
192.42.114.0/23	Plesmanlaan 121	512
192.42.120.0/21	SURFnet	2,048
192.43.212.0/24	Dutch organization for applied scientific research	256
192.87.0.0/16	SURF B.V.	65,536
193.176.235.0/24	Amsterdam	256
193.177.176.0/22	Veldhoven	1,024
194.104.124.0/23	Breda	512
194.104.240.0/20	Maastricht	4,096
194.13.112.0/21	Stichting Sint Antonius Ziekenhuis	2,048
194.13.16.0/20	Inspectie van het Onderwijs	4,096
194.171.0.0/16	SURF B.V.	65,536
194.26.12.0/22	Eindhoven	1,024
194.26.8.0/22	Eindhoven	1,024
194.53.88.0/24	Tilburg	256
194.53.89.0/24	Tilburg	256
194.53.95.0/24	Tilburg	256
195.169.0.0/16	SURF B.V.	65,536

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Netblock	Company
2001:610::/29	SURF B.V.
2001:67c:262c::/48	Dienst Uitvoering Onderwijs

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WHOIS Details

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ASHandle:       AS1103
OrgID:          AS1103
ASName:         AS1103
ASNumber:       AS1103
RegDate:        0000-00-00
Updated:        0000-00-00
TechHandle:     AA00-AAAA
Source:         AAAA

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Hosted Domains

There are 9,246 domain names hosted across 1,581 IP addresses on this ASN.

IP Address	Domain	Domains on this IP
195.169.119.134	landstedegroep.net	505
131.224.244.92	stookwijzer.nu	406
134.221.44.39	energy.nl	394
137.224.9.30	wur.nl	287
145.74.103.94	han.nl	285
132.229.29.70	universiteitleiden.nl	222
131.211.194.230	ist2023.nl	191
194.171.22.145	inholland.nl	176
194.171.22.179	hboamsterdam.nl	169
137.120.30.67	askpsy.nl	168
132.229.92.81	universiteitleiden.org	164
145.117.214.33	amcpersoneelsvereniging.nl	153
143.121.245.42	patientsafety.nl	149
129.125.2.51	rug.nl	136
145.76.2.92	saxlab.org	129
137.56.209.21	tilburguniversity.edu	127
137.56.209.22	tilburguniversity.edu	127
131.211.194.159	litlab.nl	125
137.120.6.130	maastrichtuniversity.nl	121
145.117.213.96	amc.nl	114
129.125.2.212	quantumdevices.nl	113
131.174.78.60	ru.nl	100
192.87.34.54	x-rayheroes.nl	94
130.37.164.155	kinresearch.net	93
131.174.154.47	ooron.nl	88
194.171.148.78	artiestdrama.nl	86
130.112.4.11	werkenbijnrg.eu	80
129.125.2.210	fnd-scheduler.nl	75
131.174.154.118	radboudumc.nl	73
145.5.1.13	eur.nl	73
145.74.103.157	kwt-gelderland.nl	70
143.121.245.41	umcutrecht.nl	69
145.88.218.205	lumc.nl	69
195.169.47.62	toetsnet.com	68
145.5.15.68	master-econometrics.org	67
145.19.1.141	coe-water-and-energy.com	61
131.224.245.84	rivm.nl	60
194.171.144.180	meertensknaw.nl	60
145.89.196.208	hu-research.nl	56
145.100.71.15	mbocollegenoord.nl	55
192.87.209.72	vrijwilligepolitie.nl	51
145.117.213.45	amsterdamumc.nl	51
195.169.88.31	mijnhistorici.nl	50
194.171.48.176	summacollege.nl	49
131.224.245.85	rivm.nl	46
195.169.151.100	bibliotheekzuidbroek.nl	46
145.100.71.134	rocva.nl	43
145.74.103.156	zorgalliantie.org	41
192.87.23.239	protonennederland.nl	40
145.20.124.148	ou.nl	40

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Peers

There are 1,078 peers for this ASN.

Peers	Name
AS10122	BIGO TECHNOLOGY PTE. LTD.
AS1031	Peer 1 Internet Service LLC
AS10310	Oath Holdings Inc.
AS1101	SURF B.V.
AS11019	HAProxy Technologies, Inc.
AS1102	SURF B.V.
AS1104	Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
AS11179	Aryaka Networks, Inc.
AS112	DNS-OARC
AS1124	Universiteit van Amsterdam
AS1126	Vancis Advanced ICT Services
AS1128	SURF B.V.
AS1133	SURF B.V.
AS1136	KPN B.V.
AS1140	Stichting Internet Domeinregistratie Nederland
AS1145	SURF B.V.
AS1147	SURF B.V.
AS1152	SURF B.V.
AS11537	Internet2
AS1161	SURF B.V.
AS1200	Amsterdam Internet Exchange B.V.
AS12041	Afilias, Inc.
AS12297	Telecom Armenia OJSC
AS12306	Plus.line AG
AS12315	Quality Service Provider BV
AS12322	Free SAS
AS12329	GLASFASER RUHR GmbH & Co. KG
AS12350	VTX Services SA
AS12355	HeLi NET Telekommunikation GmbH & Co.
AS12399	q.beyond AG
AS12400	Partner Communications Ltd.
AS1241	Nova Telecommunications & Media Single Member S.A
AS12414	Solcon Internetdiensten B.V.
AS12440	Hughes Network Systems GmbH
AS1248	HERE Global BV
AS12552	GlobalConnect AB
AS12578	SIA Tet
AS12615	Global Communication Net Plc
AS12637	SEEWEB s.r.l.
AS12654	Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS1267	WIND TRE S.P.A.
AS12693	e.discom Telekommunikation GmbH
AS12695	LLC Digital Network
AS12713	OTEGlobe
AS12731	IPHH Internet Port Hamburg GmbH
AS12741	Netia SA
AS12759	Stephan Fuss trading as SoftCom Datensysteme
AS12779	IT.Gate S.p.A.
AS12850	IRIDEOS S.P.A.
AS12859	BIT BV
AS12876	SCALEWAY S.A.S.
AS12883	PRIVATE JOINT-STOCK COMPANY "FARLEP-INVEST"
AS12888	Amadeus Data Processing GmbH
AS12902	Luna.nl B.V.
AS12969	Vodafone Iceland
AS12993	SIA Digitalas Ekonomikas Attistibas Centrs
AS13000	Leon Sp. z o.o.
AS13002	ISIX Communications LLP
AS13030	Init7 (Switzerland) Ltd.
AS13101	TNG Stadtnetz GmbH
AS13122	Manx Telecom Trading Ltd
AS13132	cyberways Informationsdienste GmbH
AS13150	CATO NETWORKS LTD
AS13172	Electroenergien Sistemen Operator EAD
AS13194	UAB "Bite Lietuva"
AS131958	Tama Cable Network Co.,Ltd.
AS13213	UK-2 Limited
AS132203	Tencent Building, Kejizhongyi Avenue
AS132337	Axclusive
AS13237	euNetworks GmbH
AS13249	PRIVATE JOINT STOCK COMPANY "DATAGROUP"
AS13285	TalkTalk Communications Limited
AS132876	Symphony Communication (Thailand) PCL.
AS13335	Cloudflare, Inc.
AS13360	Triton Digital
AS133613	MTel telecommunication company ltd.
AS13445	Cisco Webex LLC
AS135391	AOFEI DATA INTERNATIONAL COMPANY LIMITED
AS136106	PT. Mega Akses Persada
AS136907	HUAWEI CLOUDS
AS137367	PT iForte Solusi Infotek
AS137409	GSL Networks Pty LTD
AS137490	Navice Consulting
AS138322	Afghan Wireless Communication Company
AS139341	ACE
AS13984	SD Data Center
AS140443	PT Herza Digital Indonesia
AS14061	DigitalOcean, LLC
AS140731	TOHU Public Internet
AS140984	WTW HIGHTECH COMPANY INC
AS14127	Iland Internet Solutions Corporation
AS14537	Continent 8 LLC
AS14630	Invesco Group Services, Inc.
AS14840	BR.Digital Provider
AS148968	Falcore Investments Pty Ltd
AS14907	Wikimedia Foundation Inc.
AS150220	ID-IX
AS15133	Edgecast Inc.
AS151420	Rapid-Fire-y
AS15169	Google LLC

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Upstreams

There are 6 upstreams for this ASN.

upstreams	Name
AS20562	Broadband Hosting B.V.
AS24785	Broadband Hosting B.V.
AS2603	NORDUnet
AS2914	NTT America, Inc.
AS3257	GTT Communications Inc.
AS6830	Liberty Global B.V.

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Downstreams

There are 25 downstreams for this ASN.

Downstreams	Name
AS1101	SURF B.V.
AS1102	SURF B.V.
AS1104	Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
AS112	DNS-OARC
AS1124	Universiteit van Amsterdam
AS1128	SURF B.V.
AS1133	SURF B.V.
AS1140	Stichting Internet Domeinregistratie Nederland
AS1145	SURF B.V.
AS1147	SURF B.V.
AS1152	SURF B.V.
AS1161	SURF B.V.
AS1200	Amsterdam Internet Exchange B.V.
AS12654	Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS1837	The North Atlantic Treaty Organization
AS1888	Stichting Centrum voor Wiskunde en Informatica
AS203769	Cooperatie KIEN u.a.
AS206130	Stichting Carmel College
AS25152	Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS25182	Stichting Nederlandse Publieke Omroep
AS288	European Space Agency (ESA)
AS2914	NTT America, Inc.
AS3257	GTT Communications Inc.
AS3333	Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS42165	European Commission - Directorate General - Joint Research Centre

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS1103 at robtex.

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