Autonomous system
AS9125 ORIONTELEKOM-AS
Residential RIPE
Summary
Orion Telekom
isp residential legacy
ORIONTELEKOM-AS is Orion Telekom d.o.o., a Serbian fixed-line ISP based in Belgrade (Zemun).
What it's used for
An access/eyeball network. The AS announces ~301 IPv4 prefixes (~106k addresses) with ~140 observed BGP neighbours. Sampled reverse DNS lands on subscriber and access naming: ip-109-121-55-1.oriontelekom.rs and ADSL pools under adsl-3.sezampro.rs (Sezam Pro, an ISP Orion absorbed), plus mediaworksit.net "free-" pools. This is retail broadband address space, not backbone or hosting infrastructure.
Notable
- One of Serbia's larger alternative fixed operators, offering broadband, TV and business connectivity.
- The
sezampro.rsreverse DNS is a fossil of Sezam Pro, an early Serbian ISP whose network Orion took over. The prefix has been announced since 2000.
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 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.193.208 |
| Serbian Open Exchange | Belgrade, Serbia | 185.1.27.23 |
Transit providers
23 upstream, 27 downstream and 65 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 193 prefixes · 102K addresses IPv6 3 prefixes
| Country | Name | Prefixes |
|---|---|---|
| RS | Serbia | 196 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS9125- Registry name
- ORIONTELEKOM-AS
- Registrant
- Drustvo za telekomunikacije Orion telekom doo Beograd-Zemun
- Abuse contact
- abuse@oriontelekom.rs
- Registered
- 2001-09-26
- Last changed
- 2024-07-03
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 290 valid, 0 with no ROA
- ROAs
- 305 authorising AS9125
- ASPA
- no ASPA record
- IRR
- 99% registered · 286 of 290 announcements
- Route objects
- 299 naming AS9125
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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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