asn.dev

Autonomous system

AS12810 VIPNET-AS Internet Service Provider

Unclassified RIPE

IPv4 addresses 132K 21 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly HR
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

A1 Hrvatska (VIPnet)

Croatia · AI-generated

isp telecom mobile

132,352 addresses in 21 prefixes, every sampled one of them named, all through a single neighbour.

What it's used for

  • A Croatian national operator. 132,352 addresses across 21 IPv4 prefixes, one IPv6 prefix, and one observed BGP neighbour.

Notable

  • The largest block is 37.244.128.0/17, followed by three /18s.
  • Dated netnames run HR-A1-20100128, HR-A1-20120417 and HR-A1-20120911; two others are named A1HR_pool and A1HR_Pool_2.
  • All eighteen sampled addresses returned a name, every one of the form srv-37-244-160-0.static.a1.hr.
  • The AS handle is VIPNET-AS Internet Service Provider.

Interesting

  • Eighteen of eighteen addresses answering is the highest hit rate in this range, and every name follows one template. That is a network whose reverse zones are generated for the whole allocation rather than for the hosts somebody remembered — which is the difference between DNS as infrastructure and DNS as an afterthought.
  • One neighbour for a national operator with 132,352 addresses means the routing archive sees this AS behind its own group's backbone. The access network and the transit network are different autonomous systems, and only one of them faces the wider internet.
  • A1HR_pool and A1HR_Pool_2 use an underscore and inconsistent capitalisation, sitting beside three precisely dated netnames from the same holder. Two people, or two decades, filled in the same field. The AS handle still carries the brand the company traded under before it was renamed.

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

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

ASNetworkPaths seen
AS15994A1 Hrvatska d.o.o.713

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 21 prefixes · 132K addresses IPv6 1 prefixes

CountryNamePrefixes
HRCroatia22

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS12810
Registry name
VIPNET-AS
Registrant
AS12810-MNT
Abuse contact
abuse@A1net.hr
Registered
2002-03-13
Last changed
2025-05-14
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
17% valid · 2 valid, 10 with no ROA
ROAs
2 authorising AS12810
ASPA
no ASPA record
IRR
100% registered · 12 of 12 announcements
Route objects
12 naming AS12810

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: 442 networks and 1,783 prefixes, as published 2026-10-20. 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