Autonomous system
AS50309 ARCADIZ
Unclassified RIPE
Summary
Arcadiz Telecom
transit isp belgium
AS50309 is operated by Arcadiz Telecom NV.
What it's used for
- The address space carries a mix of Arcadiz-owned blocks (netnames
BE-ARCADIZ1-*) and space registered to third parties, includingEmmaus vzw,group S - Sociaal Secretariaat vzw, andSerSo BVBA. - With 6,144 IPv4 addresses announced across 7 prefixes and 135 observed neighbours, the high neighbour-to-address ratio indicates a transit or upstream provider role rather than a large-scale access network.
- As a Belgian telecom operator, traffic from this AS includes business connectivity, VoIP services, and transit for smaller Belgian networks and organizations.
Notable
- Registrants for the majority of prefixes match the announcer, specifically
Arcadiz Telecom NV, while three prefixes are registered to distinct Belgian entities. - The address inventory is fragmented across multiple /22 and smaller blocks, with one /21 being the largest single allocation.
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 5 exchanges in 3 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.214.154 |
| Speed Internet Exchange | Dronten, Netherlands | 185.1.222.208 |
| ERA-IX Amsterdam | Amsterdam, Netherlands | 185.1.240.122 |
| Luxembourg Internet Exchange | Luxembourg, Luxembourg | 188.93.170.87 |
| Belgian National Internet Exchange | Brussels, Belgium | 194.53.172.26 |
Transit providers
26 upstream, 26 downstream and 79 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 2026-10-10, 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 · 6.14K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BE | Belgium | 8 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS50309- Registry name
- ARCADIZ
- Registrant
- ARCADIZ-MNT
- Abuse contact
- abuse@arcadiz.com
- Registered
- 2016-07-21
- Last changed
- 2023-02-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 75% valid · 6 valid, 2 with no ROA
- ROAs
- 6 authorising AS50309
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 24 naming AS50309
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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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