asn.dev

Autonomous system

AS47863 SDSK

Unclassified APNIC

IPv4 addresses 3.07K 4 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly NL
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Stichting Digitale Snelweg Kennemerland

Netherlands · AI-generated

business netherlands regional

SDSK is operated by Stichting Digitale Snelweg Kennemerland.

What it's used for

  • The address space carries corporate and institutional traffic, with netnames NL-SDSK-20080526 and SPAARNENET01 indicating internal network segments and a hospital connection.
  • The AS announces 3072 IPv4 addresses across 4 prefixes and maintains 3 observed neighbours, a ratio consistent with a small-scale business or regional network rather than a transit provider.
  • Traffic from this AS consists of office workers and institutional endpoints for the Kennemerland region, including connections for Spaarne Gasthuis.

Notable

  • Registrants for the 93.191.0.0/22, 93.191.4.0/23, and 93.191.6.0/23 prefixes list iunxi NOC and Stichting Digitale Snelweg Kennemerland, while the 145.63.0.0/22 prefix is registered to Stichting Spaarne Gasthuis.
  • The address inventory is finely subdivided into four distinct prefixes, reflecting site-by-site segmentation for a regional digital infrastructure initiative.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS34968iunxi B.V.98
AS13335Cloudflare, Inc.65
AS28878Signet B.V.20

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 4 prefixes · 3.07K addresses IPv6 0 prefixes

CountryNamePrefixes
NLNetherlands4

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS47863
Registry name
SDSK
Registrant
MNT-SDSK
Abuse contact
secretariaat@sdsk.nl
Registered
2008-09-08
Last changed
2026-02-02
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
67% valid · 2 valid, 1 with no ROA
ROAs
2 authorising AS47863
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
2 naming AS47863

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: 443 networks and 1,779 prefixes, as published 2026-10-24. 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