Autonomous system
AS15994 A1HR A1 Hrvatska Zagreb, Croatia
Residential RIPE Cable/DSL/ISP
Summary
A1 Hrvatska
isp telecom mobile
Four absorbed brands still live in the netnames, one of them misspelled on four blocks.
What it's used for
- A national telecommunications operator. Fourteen IPv4 prefixes and one IPv6
/48announced from Croatia, six thousand six hundred and fifty-six addresses, across sixty-six observed BGP neighbours.
Notable
- The netnames carry four different brands: the current one, a cable brand, a mobile brand, and an internet provider whose name appears on four blocks with the word for access misspelled, a letter short, every time.
- One netname ends with this network's own AS number, so the label names the routing record rather than the customers.
- Another is the words for a customer pool in mixed case joined by an underscore, where the rest are capitals and hyphens.
- Every block lists the same operator contacts; two also name the company under its full legal form.
- Twelve of eighteen queried addresses answered, under two of the old brands: customer equipment marked as changeable on one domain, and a two-letter prefix with the third and fourth address numbers on another.
- Sixty-six upstreams and peers for a network of six thousand addresses.
Interesting
- A misspelling repeated across four blocks is one mistake copied forward, not four mistakes. Whoever registered the second block copied the first, and nobody has read the field closely since.
- Reverse DNS is where acquisitions go to hide. Customer equipment keeps answering under the bought company's domain long after the brand disappears, because renaming it would break nothing and fix nothing.
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
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Croatian Internet Exchange | Zagreb, Croatia | 185.1.87.104 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 14 prefixes · 6.66K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| HR | Croatia | 15 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15994- Registry name
- A1HR
- Registrant
- AS12810-MNT
- Abuse contact
- abuse@A1net.hr
- Registered
- 2002-08-22
- Last changed
- 2026-10-08
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- A1 Hrvatska
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS-DCM-ASSET- Present at
- 1 exchanges
- Facilities
- 3 facilities
- Website
- https://www.a1.hr/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 15 with no ROA
- ROAs
- 0 authorising AS15994
- ASPA
- no ASPA record
- IRR
- 100% registered · 15 of 15 announcements
- Route objects
- 16 naming AS15994
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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