asn.dev

Autonomous system

AS56758 CR0BAR

Unclassified RIPE

IPv4 addresses 0 0 prefixes
IPv6 prefixes 6 counted as prefixes, not addresses
Countries 1 mostly GB
Exchanges 1 recorded by PCH
Upstreams 5 0 downstream
Flagged prefixes 0 none

Summary

Cr0bar Limited

United Kingdom · AI-generated

consultancy dns business

CR0BAR is the AS handle for Cr0bar Limited.

What it's used for

  • The address space consists of six IPv6 prefixes, including 2a0e:97c0:661::/48 and 2a0e:b107:17a1::/48, with no IPv4 addresses announced.
  • The network maintains 17 observed neighbours, a ratio that suggests a transit or peering role rather than a large-scale access network.
  • Traffic from this AS supports an independent IT consultancy providing software development, hardware infrastructure, and IT security services, as well as DNS infrastructure tools.

Notable

  • The registry holder is Cr0bar Limited, which aligns with the AS handle CR0BAR.
  • The address inventory is exclusively IPv6, comprising six /48 prefixes, with no IPv4 space present in the inventory or announcements.

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 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
KleyReX Internet ExchangeFrankfurt, Germany193.189.83.42

Transit providers

5 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS34927iFog GmbH142
AS43350NForce Entertainment B.V.66
AS24482SG.GS2
AS57821Nonattached Network e.V.2
AS205794JINZE YANG2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 0 prefixes · 0 addresses IPv6 6 prefixes

CountryNamePrefixes
GBUnited Kingdom6

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS56758
Registry name
CR0BAR
Registrant
CR0BAR-MNT
Abuse contact
abuse@as56758.net
Registered
2021-12-09
Last changed
2025-03-28
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
2 authorising AS56758
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
12 naming AS56758

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 1,784 prefixes, as published 2026-10-19. 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