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	Prefix	Description
	77.74.48.0/21	Bas Smit trading as Zylon
	185.58.56.0/22	Bas Smit trading as Zylon
	185.213.0.0/24	-
	185.213.1.0/24	-
	185.213.2.0/24	-
	185.213.3.0/24	-
	193.16.154.0/24	Webhost/colocation
	193.189.149.0/24	Bas Smit trading as Zylon
	195.210.56.0/23	Bas Smit trading as Zylon
	193.193.165.0/24	UAB "Gurtam"
	2a01:310::/32	Bas Smit trading as Zylon

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS31477	Duocast B.V.	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS31477	Duocast B.V.	✔	✔

aut-num:        AS8312
as-name:        ZYLON-AS
org:            ORG-ZISV1-RIPE
remarks:        ------------------ TRANSIT ------------------
remarks:        - wd6.net
import:         from AS20495 accept ANY
export:         to AS20495 announce AS-ZYLON
remarks:        ---------------------------------------------
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
notify:         noc@zylon.net
mnt-by:         ZYLON-NOC
mnt-by:         RIPE-NCC-END-MNT
created:        2004-11-11T15:13:48Z
last-modified:  2019-12-04T11:18:18Z
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-ZISV1-RIPE
org-name:       Bas Smit trading as Zylon
country:        NL
org-type:       LIR
address:        Dummy address for ORG-ZISV1-RIPE
# Email removed, Log into bgp.tools to see whois emails
abuse-c:        AR16312-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        ZYLON-NOC
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         ZYLON-NOC
created:        2007-03-20T08:20:03Z
last-modified:  2020-12-16T12:18:00Z
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: 2026-03-11T03:23:55Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RIPE	as31477:as-duocast	22
RIPE	as-green-ipv6-peers	61
RIPE	as51088:as-peers-amsix	146
RIPE	as-gbxs6	853
LEVEL3	as-level3-origins-na	0
LEVEL3	as-level3-origins-eu	0
RIPE	as-zylon	2
ARIN	as-xo-b	57965