asn.dev

Autonomous system

AS57758 CBWS-AS CBWS Holding B.V.

Unclassified RIPE NSP

IPv4 addresses 1.28K 2 prefixes
IPv6 prefixes 8 counted as prefixes, not addresses
Countries 1 mostly NL
Exchanges 4 recorded by PCH
Upstreams 17 3 downstream
Flagged prefixes 0 none

Summary

CBWS

Netherlands · AI-generated

transit isp netherlands hosting

CBWS-AS is operated by CBWS Holding B.V.

What it's used for

  • The address space carries infrastructure and access traffic, evidenced by reverse DNS entries such as b9a7cefe.ipv4.multiserve.nl and et-0/0/1.1510.r1.nl-ams.cbws.network.
  • The AS announces 1280 IPv4 addresses and 8 IPv6 prefixes while maintaining 65 observed neighbours, a ratio indicative of a transit or network service provider role.
  • Traffic from this AS includes web and API endpoints, as well as backhaul for the operator's network services in the Netherlands.

Notable

  • Registrants for the announced prefixes are consistent with the announcer, listing CBWS - NOC, CBWS Holding B.V., and CBWS B.V. alongside abuse contacts.
  • The inventory consists of two IPv4 prefixes and eight IPv6 prefixes, all located in the Netherlands.

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 4 exchanges in 1 country, largest first.

ExchangeLocationTheir address
Neutral Internet ExchangeAmsterdam, Netherlands193.239.116.182
The Frys Internet ExchangeFrysian, Netherlands2001:7f8:10f::e19e:19
Speed Internet ExchangeDronten, Netherlands185.1.223.28
LayerSwitch Internet ExchangeThe Hague, Netherlands185.1.32.98

Transit providers

17 upstream, 3 downstream and 29 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC402
AS174Cogent Communications, LLC100
AS20562Broadband Hosting B.V.85
AS24785Broadband Hosting B.V.21
AS24482SG.GS16
AS25091IP-Max SA11
AS29632Netassist International EOOD11
AS1103SURF B.V.9

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-04, 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 2 prefixes · 1.28K addresses IPv6 8 prefixes

CountryNamePrefixes
NLNetherlands10

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS57758
Registry name
CBWS-AS
Registrant
MNT-CBWS
Abuse contact
abuse@cbws.nl
Registered
2016-09-14
Last changed
2026-07-31
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
CBWS
Also known as
CBWS
Network type
NSP
Scope
Europe
Traffic ratio
Mostly Outbound
Peering policy
Open
IRR as-set
AS57758:AS-CBWS
Present at
5 exchanges
Facilities
3 facilities
Website
https://cbws.nl

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 16 valid, 0 with no ROA
ROAs
18 authorising AS57758
ASPA
no ASPA record
IRR
100% registered · 16 of 16 announcements
Route objects
27 naming AS57758

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: 452 networks and 1,853 prefixes, as published 2026-11-05. 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