Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem

Data as of 2026-07-26
BGP inherited
Cluster stats
Netblocks13 · 1,356 IPv4 addresses
IPv6 4 prefixes (largest 2a12:840::/29)
All fragments 15 blocks across 2 clusters
Cluster ID213440975
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 9 shared RIR contact/maintainer handles
Registry names 3 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
14 -2 netblocks since 2026-07-05
2026-07-05 peak 16 2026-07-26

IP Ranges (13)

⬇ export CSV
CIDR Org name Registry Status Confidence
195.113.135.0/24 Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem RIPE ASSIGNED PA ● high
195.113.148.116/30 Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem RIPE ASSIGNED PA ● high
195.113.197.48/29 Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem RIPE ASSIGNED PA ● high
195.113.197.64/28 Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem RIPE ASSIGNED PA ● high
195.113.197.80/28 Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem RIPE ASSIGNED PA ● high
195.113.213.128/27 Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem RIPE ASSIGNED PA ● high
195.113.234.0/24 Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem RIPE ASSIGNED PA ● high
195.234.49.0/24 Krajska zdravotni, a.s. BGP ANNOUNCED ● high
2001:718:1600:1::/64 Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem RIPE ASSIGNED ● high
2001:718:1601::/48 Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem RIPE ASSIGNED ● high
2a12:840:1::/48 Krajska zdravotni, a.s. BGP ANNOUNCED ● high
89.187.198.0/23 Krajska zdravotni, a.s. RIPE ALLOCATED PA ● low
2a12:840::/29 Krajska zdravotni, a.s. RIPE ALLOCATED-BY-RIR ● low

IPv6 ranges (4)

CIDR
2a12:840::/29
2001:718:1601::/48
2a12:840:1::/48
2001:718:1600:1::/64

Network trust

what's this?
RPKI hygiene: B how networks compare →
85.7% of checked blocks have valid RPKI ROA coverage (12 of 14)
Possible discrepancies (3)

These blocks are registered to Krajska zdravotni a.s., Masarykova nemocnice v Usti nad Labem but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2001:718:1601::/48 /48 authorized for AS2852 — CESNET z.s.p.o.
195.113.135.0/24 /24 authorized for AS2852 — CESNET z.s.p.o.
195.113.234.0/24 /24 authorized for AS2852 — CESNET z.s.p.o.

NIC Handles

AS210367 DUMY-RIPE DUMY-RIPE ORG-KZA8-RIPE ORG-KZAM1-RIPE RIPE-NCC-HM-MNT TENCZ-MNT lir-cz-kz-1-MNT lir-cz-kz-1-MNT