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AS25496 ZT Bratislava

Slovakia ZT-AS RIPE 2 IPv4 prefixes 1 IPv6 prefix
IPv4 addresses
5,120
IPv6 /48 networks
65,536
RPKI
0 valid3 no ROA
Peers and downstreams
8

Holder

AS name
ZT-AS
Description
ZT Bratislava
Organisation
ZSR - ZT Bratislava
Registered in
Bratislava, Slovakia
Abuse contact
NMC.datanet@zsr.sk
Assigned
2002-12-09
Registered
2002-12-10
Record last changed
2022-01-27 10:57 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths
AS34019 Hivane Association AS34019 · FR Hivane Association AS8758 Iway AG AS8758 · CH Iway AG AS29222 Infomaniak Network SA AS29222 · CH Infomaniak Network SA AS51395 Datasource AG AS51395 · CH Datasource AG AS25091 IP-Max SA AS25091 · CH IP-Max SA AS174 AS174 AS174 AS174 AS6461 Zayo Bandwidth AS6461 · US Zayo Bandwidth AS9002 RETN Limited AS9002 · GB RETN Limited AS5405 Inter.link GmbH AS5405 · DE Inter.link GmbH AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS3303 Swisscom (Schweiz) AG AS3303 · CH Swisscom (Schweiz) AG AS5578 SWAN, a.s. AS5578 · SK SWAN, a.s. AS31230 Slovak University of Technology in Bratislava AS31230 · SK Slovak University of … AS28952 O2 Business Services, a.s AS28952 · SK O2 Business Services,… AS25496 ZT Bratislava AS25496 · SK ZT Bratislava

Network health

Grade C · 60/100
fail Prefixes covered by valid ROAs
0 of 3 announced prefixes are RPKI valid, 3 have no ROA.		 0/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
pass Announces IPv6
1 IPv6 prefix.		 15/15
pass More than one upstream
5 upstreams seen in BGP.		 10/10
pass Working abuse contact
NMC.datanet@zsr.sk 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
fail Registry record maintained
Last changed 2022-01-27.		 0/5
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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Routing changes

Last 30 days
2026-10-04 20:40 UTCNeighbour gone AS44901 peer
2026-10-04 20:40 UTCRelationship changed AS8218 upstream to peer
2026-10-04 20:40 UTCRelationship changed AS6663 upstream to peer
2026-10-04 20:40 UTCRelationship changed AS6204 upstream to peer
2026-10-04 20:40 UTCRelationship changed AS33891 upstream to peer
2026-10-04 20:40 UTCRelationship changed AS1764 upstream to peer
2026-10-04 20:40 UTCRelationship changed AS15935 upstream to peer

WHOIS

aut-num:        AS25496
org:            ORG-ZZB1-RIPE
as-name:        ZT-AS
admin-c:        ZM130-RIPE
tech-c:         ZM130-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ZT-BRATISLAVA-MNT
created:        2002-12-10T14:42:52Z
last-modified:  2022-01-27T10:57:52Z
source:         RIPE
% 10 routing policy lines (import/export) not shown