Autonomous system
AS34594 OT-AS
Unclassified RIPE Cable/DSL/ISP
Summary
Telemach Hrvatska
telecom residential mobile isp
The AS handle OT-AS is held by Telemach Hrvatska d.o.o.
What it's used for
- The address space carries residential and mobile subscriber traffic, evidenced by reverse DNS entries such as
89-201-191-255.dsl.optinet.hrand5-43-168-0.dsl.optinet.hr. - The network announces 124,672 IPv4 addresses across 19 prefixes and 17 IPv6 prefixes, while maintaining only 14 observed neighbours, a ratio indicative of an access or eyeball network rather than a transit provider.
Notable
- All registrants for the largest prefixes are listed as "Network development; Telemach Hrvatska d.o.o.; Abuse-C Role," which aligns perfectly with the AS holder.
- Telemach Hrvatska is a member of the United Group and operates as a national convergent operator in Croatia, providing mobile, fixed, and TV services.
- The inventory includes a mix of /17, /19, and smaller blocks, with the largest being 89.201.128.0/17 and 95.178.128.0/17.
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 | 185.1.87.76 |
Transit providers
1 upstream, 12 downstream and 16 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS205714 | Telemach Hrvatska d.o.o. | 1,094 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 19 prefixes · 125K addresses IPv6 17 prefixes
| Country | Name | Prefixes |
|---|---|---|
| HR | Croatia | 36 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS34594- Registry name
- OT-AS
- Registrant
- Telemach Hrvatska d.o.o.
- Abuse contact
- addressabuse@telemach.hr
- Registered
- 2005-02-21
- Last changed
- 2025-07-31
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Optima telekom
- Network type
- Cable/DSL/ISP
- Scope
- Europe
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS-OPTIMA- Present at
- 1 exchanges
- Facilities
- 1 facilities
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
- 100% valid · 18 valid, 0 with no ROA
- ROAs
- 21 authorising AS34594
- ASPA
- no ASPA record
- IRR
- 100% registered · 18 of 18 announcements
- Route objects
- 54 naming AS34594
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 1,772 prefixes, as published 2026-10-15. 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