Autonomous system
AS13038 HELEX-RP
Unclassified APNIC
Summary
Euronext Athens
finance enterprise business
A stock exchange with one BGP neighbour, announcing a contiguous block as seven pieces with gaps.
What it's used for
- The network of the Athens stock exchange holding company. 2,304 addresses across seven IPv4 prefixes, one observed BGP neighbour, and no IPv6 announced.
Notable
- Every prefix falls inside
193.242.240.0/20, announced as240.0/24,243.0/24,244.0/23,248.0/24,251.0/24,253.0/24and254.0/23. - All seven carry the same netname,
HELEX-NET. - One of eighteen sampled addresses returned a name:
marketorder-cs-scan.marketorder.gr. - First observed in the routing archive in May 2002.
Interesting
- One neighbour is the striking figure. A single upstream means a single path, and if it fails the network is unreachable. That is the arrangement most organisations run an AS number specifically to avoid, and here it belongs to a securities exchange.
- Seven announcements from one /20, with the unannounced pieces left out, is a network routing only what it actually uses. The gaps are space held but not carried in BGP, so the announcement is a map of live segments rather than of the allocation.
- The one hostname that answered names both a business function and a role in the same label. It is a reminder that reverse DNS on enterprise space is descriptive where consumer space is generated, and that description is often more revealing than the operator intends.
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 |
|---|---|---|
| Greek Internet Exchange - Athens | Athens, Greece | 176.126.38.62 |
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS13335 | Cloudflare, Inc. | 585 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 2.30K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GR | Greece | 7 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS13038- Registry name
- HELEX-RP
- Registrant
- HELEX-MNT
- Abuse contact
- abuse@forthnet.gr
- Registered
- 1970-01-01
- Last changed
- 2017-11-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 9 with no ROA
- ROAs
- 0 authorising AS13038
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 2 naming AS13038
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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