AS34819 — H17

AS34819 announces 1 IPv4 prefixes covering 1,024 addresses and 1 IPv6 prefixes.

About this network

The AS handle H17 is held by H17 Networks, s.r.o.

What it's used for

• The address space carries corporate infrastructure, evidenced by the reverse DNS entry bbone.habr2.nat.h17.cz and the netname CZ-H17-20190624.
• The AS announces 1024 IPv4 addresses and 1 IPv6 prefix, with only 3 observed neighbours, indicating a small-scale internal or business network rather than a transit provider.

Notable

• The registrant H17 Networks, s.r.o. matches the announcer, confirming direct ownership of the address space.
• The address inventory consists of a single IPv4 block (45.90.100.0/22) and one IPv6 prefix (2a0d:1c0::/29), representing a compact and unified corporate estate.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 45.90.100.0/22
• 2a0d:1c0::/29

Upstream networks

• AS49095 PRAHA12.com s.r.o.

Downstream networks

• AS50067 CESAL s.r.o.
• AS34487 SouthPrague.Net, z.s.

Adjacent networks

• AS49095 PRAHA12.com s.r.o.
• AS50067 CESAL s.r.o.
• AS34487 SouthPrague.Net, z.s.

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-NFX-NIX, AS-NFX-UPSTREAM, AS-PROVITEX1.