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	Prefix	Description
	145.107.4.0/22	NIKHEF
	145.110.0.0/16	NIKHEF
	145.116.48.0/20	NIKHEF
	145.116.208.0/21	NIKHEF
	145.116.216.0/24	NIKHEF
	185.153.60.0/22	Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
	192.16.185.0/24	Nikhef
	192.16.186.0/24	Nikhef (designated purpose networks)
	192.16.192.0/24	Nikhef
	192.16.194.0/24	Nikhef
	192.16.195.0/24	Nikhef
	192.16.199.0/24	Nikhef
	2a07:8500::/32	-
	2a07:8504::/32	-
	2a07:8504:120::/48	-
	2a07:8504:1a0::/48	-

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS1103	SURF B.V.	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS1103	SURF B.V.	✔	✔
	AS8283	Netwerkvereniging Coloclue	✔	✔
	AS200132	Peter-Paul Maria Kurstjens	✔	✔
	AS8298	IPng Networks GmbH	✔	✔
	AS20495	We Dare B.V.	✔	✔
	AS212635	Jurrian van Iersel	✔	✔
	AS49544	i3D.net B.V	✔	✘
	AS207176	OPENFIBER B.V.	✔	✔
	AS44854	Arend Brouwer	✔	✔
	AS211588	Innovation Harbor B.V.	✔	✔
	AS211623	NAML B.V.	✔	✔
	AS213052	Bram Wittendorp trading as BittenBytes	✔	✔
	AS57866	Fusix Networks B.V.	✔	✔
	AS51202	NUXOA GmbH	✔	✔
	AS212855	Jelle Luteijn	✔	✔
	AS215248	Bastiaan Mathijs Brink	✔	✔
	AS31477	Duocast B.V.	✔	✔
	AS202585	Nick Bouwhuis	✔	✔
	AS215296	Raoul Brouns	✔	✔
	AS12859	BIT BV	✔	✔
	AS8315	Accenture B. V.	✔	✘
	AS57758	CBWS Holding B.V.	✔	✘
	AS58075	X2com BV	✔	✘
	AS1136	KPN B.V.	✔	✔
	AS41960	Nextpertise B.V.	✔	✔

aut-num:        AS1104
as-name:        Nikhef
org:            ORG-SVFO1-RIPE
descr:          Nikhef
descr:          Science Park 105
descr:          Amsterdam, 1098 XG
descr:          The Netherlands
import:         from AS1103 accept ANY
import:         from AS1139 accept AS1139
import:         from AS1888 accept AS1888
import:         from AS1162 accept AS1162
import:         from AS1124 accept AS1124
import:         from AS2018 accept AS2018
import:         from AS57484 accept AS57484
import:         from AS513 accept AS-CERNEXT
import:         from AS25596 accept AS25596
import:         from AS207176 accept AS207176
import:         from AS57866 accept AS57866
import:         from AS1101 accept AS-NOTSURFNET
import:         from AS206238 accept AS-FREEDOM
import:         from AS58299 accept AS58299
import:         from AS60557 accept AS60557
import:         from AS8283 accept AS8283
import:         from AS8298 accept AS8298
import:         from AS44103 accept AS44103
import:         from AS64404 accept AS64404
import:         from AS20495 accept AS20495
export:         to AS1103 announce AS-NIKHEF
export:         to AS1139 announce AS-NIKHEF
export:         to AS1888 announce AS-NIKHEF
export:         to AS1162 announce AS-NIKHEF
export:         to AS1124 announce AS-NIKHEF
export:         to AS2018 announce AS-NIKHEF
export:         to AS57484 announce AS-NIKHEF
export:         to AS513 announce AS-NIKHEF
export:         to AS25596 announce AS-NIKHEF
export:         to AS207176 announce AS-NIKHEF
export:         to AS57866 announce AS-NIKHEF
export:         to AS206238 announce AS-NIKHEF
export:         to AS1101 announce AS-NIKHEF
export:         to AS8298 announce AS-NIKHEF
export:         to AS8283 announce AS-NIKHEF
export:         to AS60557 announce AS-NIKHEF
export:         to AS58299 announce AS-NIKHEF
export:         to AS44103 announce AS-NIKHEF
export:         to AS64404 announce AS-NIKHEF
export:         to AS20495 announce AS-NIKHEF
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         AS1104-MNT
created:        2001-12-03T16:45:26Z
last-modified:  2022-03-02T10:49:57Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************


organisation:   ORG-SVFO1-RIPE
org-name:       Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
country:        NL
org-type:       LIR
address:        Dummy address for ORG-SVFO1-RIPE
# Email removed, Log into bgp.tools to see whois emails
abuse-c:        AR32917-RIPE
mnt-ref:        AS1104-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS1104-MNT
created:        2015-07-16T07:21:35Z
last-modified:  2021-01-12T15:30:44Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Last Update: 2026-03-11T03:23:48Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-nl-ix-rs	91087
RIPE	as-manda-amsix-peers-v6	560
LEVEL3	as-level3-transits	1364
RIPE	as-nikhef	1
RIPE	as-surfnet	39
RIPE	as-manda-amsix-peers-v4	597
RIPE	as-nobsurf	11
LEVEL3	as-level3-origins-eu	0
RIPE	as8298:as-peers	173
RIPE	as1103:as-surf	39