SAT-MONT-SERVICE JACEK MRUK, KRZYSZTOF MRUK Sp. z o.o.
SMSNET
Cluster stats
Netblocks11
All fragments 15 blocks across 4 clusters
Cluster ID192403399
RegistryRIPE
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 3 shared RIR contact/maintainer handles
Registry names 1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

2 weekly snapshots · JSON
11 0 netblocks since 2026-07-05
2026-07-05 peak 11 2026-07-06

IP Ranges (11)

⬇ export CSV
CIDR Org name Registry Status Confidence
45.139.92.0/24 SMSNET RIPE ASSIGNED PA ● low
45.139.93.0/24 SMSNET RIPE ASSIGNED PA ● low
45.139.94.0/24 SMSNET RIPE ASSIGNED PA ● low
45.139.95.0/24 SMSNET RIPE ASSIGNED PA ● low
79.175.192.0/20 SMSNET RIPE ASSIGNED PA ● low
79.175.208.0 – 79.175.239.255 SMSNET RIPE ASSIGNED PA ● low
79.175.240.0/21 SMSNET RIPE ASSIGNED PA ● low
79.175.248.0/22 SMSNET RIPE ASSIGNED PA ● low
79.175.252.0/22 SMSNET RIPE ASSIGNED PA ● low
109.74.96.0/21 SMSNET RIPE ASSIGNED PA ● low
109.74.104.0/21 SMSNET RIPE ASSIGNED PA ● low

Network trust

what's this?
RPKI hygiene: B how networks compare →
90.9% of checked blocks have valid RPKI ROA coverage (10 of 11)
RPKI-inferred operator SAT-MONT-SERVICE JACEK MRUK, KRZYSZTOF MRUK Sp. z o.o.
Nearly all of this network's RPKI-covered space is cryptographically authorized for this single operator — the registered netname is likely one of its internal infrastructure labels.
No discrepancies found among checked blocks.

NIC Handles

DUMY-RIPE DUMY-RIPE MNT-SMSNET