asn.dev

Autonomous system

AS13136 INTERSTROOM-AS Hengelo, The Netherlands

Unclassified RIPE

IPv4 addresses 2.05K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly NL
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Interstroom

Netherlands · AI-generated

hosting business infrastructure

An IPv6 announcement covering 128 times the standard allocation, against a single /21 of IPv4.

What it's used for

  • A Dutch information technology company. 2,048 addresses in one IPv4 prefix, one IPv6 prefix, and one observed BGP neighbour.

Notable

  • The IPv4 inventory is 80.85.128.0/21, netname NL-STROOM-20010815.
  • The IPv6 announcement is 2a02:13d0::/29.
  • The AS handle is INTERSTROOM-AS Hengelo, The Netherlands, naming a town and a country.
  • Three addresses were sampled and none returned a name.

Interesting

  • A /29 is the size handed out to organisations that expect to assign onward at scale, and it contains 128 of the /32 blocks a single network normally receives. Against 2,048 IPv4 addresses it is a striking mismatch, and it is the ordinary state of affairs: IPv6 was allocated on the assumption that scarcity would never return, so the two numbers in a record like this are not comparable at all.
  • The handle names a specific town rather than just a country, joining a small group in this range that treat the field as an address. It is the most locational information the registry carries about this network, and nothing verifies it.
  • One neighbour means everything here reaches the internet through a single provider, whatever the address space suggests about ambition.

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

1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS24875NovoServe B.V.93

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 1 prefixes · 2.05K addresses IPv6 1 prefixes

CountryNamePrefixes
NLNetherlands2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS13136
Registry name
INTERSTROOM-AS
Registrant
MNT-INTER
Abuse contact
hostmaster@interstroom.nl
Registered
2002-05-17
Last changed
2017-11-15
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS13136
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS13136

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: 442 networks and 1,771 prefixes, as published 2026-10-15. 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