asn.dev

Autonomous system

AS49870 AS49870-BV

Hosting DROP-listed space RIPE

IPv4 addresses 7.42K 19 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly NL
Exchanges 3 recorded by PCH
Upstreams 12 6 downstream
Flagged prefixes 0 none

Summary

Alsycon

Netherlands · AI-generated

hosting business netherlands

AS49870-BV is operated by Alsycon B.V.

What it's used for

  • The address space carries hosting and dedicated server infrastructure, evidenced by reverse DNS entries such as hosted-by.alsycon.net and hosted-by.europededicated.com, alongside specific client subdomains like s01.research.oasis-security.io.
  • The network announces 7,680 IPv4 addresses across 18 prefixes and maintains 63 observed neighbours, a ratio consistent with a hosting provider offering direct connectivity to various upstreams and peers.
  • Traffic from this AS consists of web and API endpoints, dedicated server workloads, and business customer solutions hosted within Alsycon's datacenter facilities.

Notable

  • Registrants align with the announcer for the majority of the inventory, with Alsycon B.V. listed for netnames NL-ALSYCON-20190710, COMPANYTOTAL, and ALSYCON-CUSTOMERS.
  • Several prefixes, including 160.119.64.0/22 and 196.61.64.0/22, are registered to HostUS Solutions LLC under the netname ORG-HSL1-AFRINIC, indicating leased or transferred address space.
  • The inventory is a mix of /22 and /24 blocks, with a single IPv6 prefix 2a0e:3980::/29 announced.

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

Full topology · Graph

Internet exchanges

Recorded at 3 exchanges in 2 countries, largest first.

ExchangeLocationTheir address
The Frys Internet ExchangeFrysian, Netherlands2001:7f8:10f::c2ce:1
Speed Internet ExchangeDronten, Netherlands185.1.222.233
Baltic Internet ExchangeVilnius, Lithuania77.241.206.130

Transit providers

12 upstream, 6 downstream and 30 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS174Cogent Communications, LLC643
AS3257GTT Communications Inc.421
AS6939Hurricane Electric LLC87
AS9002RETN Limited80
AS57717FiberXpress BV60
AS24482SG.GS21
AS13194UAB "Bite Lietuva"20
AS37721Virtual Technologies & Solutions20

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

Shape and geography

IPv4 19 prefixes · 7.42K addresses IPv6 1 prefixes

CountryNamePrefixes
NLNetherlands20

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS49870
Registry name
AS49870-BV
Registrant
Alsycon-BV
Abuse contact
abuse@as49870.net
Registered
2019-11-14
Last changed
2026-09-14
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
67% valid · 16 valid, 8 with no ROA
ROAs
17 authorising AS49870
ASPA
no ASPA record
IRR
100% registered · 24 of 24 announcements
Route objects
29 naming AS49870

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

1 DROP match Announced space overlapping the DROP prefix list.

AnnouncedDROP entryRecord
89.190.156.0/2489.190.156.0/24SBL635688

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

Cross-check