ostrov

OSTROV-NET

Registry

Cluster stats

Netblocks	6 · 410 IPv4 addresses
All fragments	8 blocks across 3 clusters
Cluster ID	209316898
Registry	RIPE
Customers	find customers using this network →

Evidence & provenance ?

Attribution	Registry record
Shared handles	clustered on 7 shared RIR contact/maintainer handles
Registry names	5 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

4 weekly snapshots · JSON

6 0 netblocks since 2026-07-05

2026-07-05 peak 6 2026-07-19

IP Ranges (6)

⬇ export CSV

CIDR	Org name	Registry	Status	Confidence
5.35.50.0/24	Ostrov-NET	RIPE	ASSIGNED PA	● low
46.22.57.128/25	OSTROV-NET	RIPE	ASSIGNED PA	● low
87.237.45.72/29	OSTROV-NET	RIPE	ASSIGNED PA	● low
89.109.237.68/30	ostrov	RIPE	ASSIGNED PA	● low
95.167.28.224/28	Ostrov_net	RIPE	ASSIGNED PA	● low
212.13.101.40/30	ostrov-net	RIPE	ASSIGNED PA	● low

Possibly related to this organisation

what's this?

Same name family

Separately-registered clusters whose names share “OSTROV” — often per-country or per-system registrations of the same brand, occasionally a different organisation sharing the name. Not counted in this organisation's own footprint.

OSTROV-LAN 1 blocks
OSTROV-MINSK 1 blocks

Sub-allocations under carriers

IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own naming convention, not a direct registration.

SOUOSTROV via T-Mobile Czech Republic a.s. sub-allocation
Chudo Ostrov sub-allocation
Fond-Ostrov-detstva via MTS PJSC sub-allocation
WIFI-PN-KUPOSTROV via Slovak Telekom, a.s. sub-allocation
CORBINA-ZAOOSTROV sub-allocation
CORBINA-OSTROVTS sub-allocation
CORBINA-OSTROV-2 sub-allocation
B-OSTROVOSCHI-D via Vodafone Romania S.A. sub-allocation

Network trust

what's this?

RPKI hygiene: D how networks compare →

33.3% of checked blocks have valid RPKI ROA coverage (2 of 6)

No discrepancies found among checked blocks.

NIC Handles

DUMY-RIPE DUMY-RIPE MSLINK-MNT RECONN-MNT ROSTELECOM-MNT UMNYESETI-MNT cnt-mnt