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	Prefix	Description
	145.100.118.0/24	Universiteit Twente
	145.116.218.0/24	Universiteit Twente
	145.116.219.0/24	Universiteit Twente
	2001:610:9000::/41	Universiteit Twente
	2001:610:9080::/41	Universiteit Twente

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS20473	The Constant Company, LLC	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS20473	The Constant Company, LLC	✔	✔
	AS52025	ParadoxNetworks Limited	✔	✔
	AS400671	stypr LLC	✔	✔
	AS134666	Hoshi Network	✔	✔
	AS33760	Ashton Holmes, Sole Proprietorship	✘	✔
	AS216107	Noah van der Aa trading as Frumentum Media	✔	✘
	AS207466	Sebastien Beaufour	✘	✔
	AS214821	Wen-Ju, Chiang	✘	✔
	AS206699	Zoey Mertes	✘	✔

aut-num:        AS1149
as-name:        SURFNET-AS
descr:          Tijdelijk uitgeleend aan UTWENTE voor onderzoek
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
created:        2002-08-21T16:06:47Z
last-modified:  2019-09-03T09:22:57Z
source:         RIPE
mnt-by:         RIPE-NCC-LEGACY-MNT
org:            ORG-Sb3-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-Sb3-RIPE
org-name:       SURF B.V.
country:        NL
org-type:       LIR
address:        Dummy address for ORG-Sb3-RIPE
e-mail:         unread@ripe.net
abuse-c:        SNS1-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SN-LIR-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SN-LIR-MNT
created:        2004-04-17T11:43:29Z
last-modified:  2023-02-21T13:35:38Z
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: 2025-04-25T03:24:55Z UTC

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Member of the following AS-SETs

-	Member
RADB	as-267613
APNIC	as1221:as-customers
RIPE	as-nic-dk
RADB	as-hurricanev6
RADB	as7606:as-qld-ix
RADB	as7606:as-vic-ix
RADB	as10886:as-4-all
RADB	as-ctbc-customers177
RADB	as20473:as-vultr
RADB	as-telstra-intl-customers
RIPE	as-liquid-ext
RADB	as7545:as-tpgn-customers
RIPE	as-ubnix-members
RADB	as-lvt-customers
RIPE	as1103:as-surf
RIPE	as-surfnet
NTTCOM	as-losnettos-ipv6
RADB	as-h1p-eu
RADB	as26615:as-customers
RADB	as7606:as-wa-ix
RADB	as-2500-2914
RADB	as-as20080-transit
NTTCOM	as-losnettos
RADB	as-kddcustomer2