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AS206218 Anne-Jan Zwart

Netherlands AT4-AS RIPE 1 IPv4 prefix 1 IPv6 prefix
IPv4 addresses
256
IPv6 /48 networks
1
RPKI
2 valid0 no ROA
Peers and downstreams
0

Holder

AS name
AT4-AS
Description
at4.xyz
Organisation
Anne-Jan Zwart
Registered in
Breda, Netherlands
Abuse contact
annejan.zwart@gmail.com
Assigned
2025-10-12
Registered
2025-10-13
Record last changed
2025-10-13 17:45 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths
AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS35280 F5 Networks SARL AS35280 · FR F5 Networks SARL AS14840 BR.Digital Telecom AS14840 · BR BR.Digital Telecom AS25091 IP-Max SA AS25091 · CH IP-Max SA AS8283 Netwerkvereniging Coloclue AS8283 · NL Netwerkvereniging Col… AS206218 Anne-Jan Zwart AS206218 · NL Anne-Jan Zwart

Network health

Grade B · 85/100
pass Prefixes covered by valid ROAs
2 of 2 announced prefixes are RPKI valid.		 25/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
pass Announces IPv6
1 IPv6 prefix.		 15/15
partly More than one upstream
1 upstream seen in BGP.		 5/10
pass Working abuse contact
annejan.zwart@gmail.com is published.		 15/15
fail Publishes a geofeed
No geofeed found. Without one, location databases have to guess.		 0/10
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 2025-10-13.		 5/5
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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AS206218 health AS206218 RPKI
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Routing changes

Last 30 days
No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS206218
as-name:        AT4-AS
descr:          at4.xyz
org:            ORG-AZ74-RIPE
sponsoring-org: ORG-NC22-RIPE
admin-c:        AZ9354-RIPE
tech-c:         AZ9354-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         at4-mnt
created:        2025-10-13T13:36:49Z
last-modified:  2025-10-13T17:45:24Z
source:         RIPE
% 4 routing policy lines (import/export) not shown