asn.dev

Autonomous system

AS15719 CZVH

Unclassified RIPE

IPv4 addresses 768 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly HR
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Centar za vozila Hrvatske

Croatia · AI-generated

enterprise business infrastructure

The only contact on both blocks belongs to a telecoms operator, not to the holder.

What it's used for

  • A vehicle inspection company's network. Two IPv4 prefixes announced from Croatia, no IPv6, seven hundred and sixty-eight addresses, across two observed BGP neighbours.

Notable

  • Neither block names the holder. The single registrant on both is a contact object belonging to the national telecoms operator.
  • The AS handle is a four-letter abbreviation of the company name; the netname is a three-letter one with the country code appended, so the two disagree by a letter.
  • Both blocks share that one netname, and the two come from unrelated ranges.
  • The routing archive first saw this number more than a decade after the numbers around it, so it was either assigned late or dormant for years.
  • Six addresses were queried for reverse DNS and none returned a name.

Interesting

  • A block whose only contact is the upstream provider is managed space. The customer holds the number and the operator holds everything a reader would use to reach anyone about it, which is why the holder's name appears nowhere in the block record.
  • Two abbreviations of one name, differing by a single letter, is enough to break every automated match between the routing record and the address record. Both are defensible and neither can be derived from the other.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS44306OMONIA d.o.o.155
AS5391Hrvatski Telekom d.d.86

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 2 prefixes · 768 addresses IPv6 0 prefixes

CountryNamePrefixes
HRCroatia2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS15719
Registry name
CZVH
Registrant
HPT-MNT
Abuse contact
cvh@cvh.hr
Registered
2015-09-02
Last changed
2025-06-26
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 4 valid, 0 with no ROA
ROAs
4 authorising AS15719
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
4 naming AS15719

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 447 networks and 1,845 prefixes, as published 2026-10-31. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check