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AS51277 Ostrowski Sp. z o.o.

Poland Ostrowski-as RIPE 4 IPv4 prefixes 0 IPv6 prefixes
IPv4 addresses
3,072
IPv6 /48 networks
0
RPKI
3 valid1 no ROA
Peers and downstreams
6

Holder

AS name
Ostrowski-as
Description
Ostrowski Sp. z o.o.
Organisation
Ostrowski Sp. z o.o.
Registered in
Zielona Góra, Poland
Abuse contact
abuse@ostrowski.pl
Assigned
2010-07-07
Registered
2010-07-08
Record last changed
2024-06-27 19:53 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths
AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS6461 Zayo Bandwidth AS6461 · US Zayo Bandwidth AS1299 Arelion Sweden AB AS1299 · SE Arelion Sweden AB AS5405 Inter.link GmbH AS5405 · DE Inter.link GmbH AS29535 MIX2_OpenPeering AS29535 · PL MIX2_OpenPeering AS51277 Ostrowski Sp. z o.o. AS51277 · PL Ostrowski Sp. z o.o.

Network health

Grade C · 64/100
partly Prefixes covered by valid ROAs
3 of 4 announced prefixes are RPKI valid, 1 have no ROA.		 19/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
fail Announces IPv6
No IPv6 prefixes are announced.		 0/15
partly More than one upstream
1 upstream seen in BGP.		 5/10
pass Working abuse contact
abuse@ostrowski.pl 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 2024-06-27.		 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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Routing changes

Last 30 days
2026-10-05 00:46 UTCRelationship changed AS6204 upstream to peer
2026-10-05 00:46 UTCRelationship changed AS12912 upstream to peer

WHOIS

aut-num:        AS51277
as-name:        Ostrowski-as
org:            ORG-OSzo5-Ripe
admin-c:        SB12055-RIPE
tech-c:         SB12055-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         Ostrowski-mnt
created:        2010-07-08T14:43:46Z
last-modified:  2024-06-27T19:53:05Z
source:         RIPE
sponsoring-org: ORG-ITP1-RIPE
% 4 routing policy lines (import/export) not shown