asn.dev

Autonomous system

AS12466 BICOS

Unclassified RIPE

IPv4 addresses 3.33K 7 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 0 recorded by PCH
Upstreams 3 1 downstream
Flagged prefixes 0 none

Summary

Bicos Computer

Germany · AI-generated

isp hosting

A German provider whose netnames number themselves by the third octet of each block.

What it's used for

  • Business connectivity and hosting. 3,328 addresses in seven IPv4 prefixes, one IPv6 /32, and three observed BGP neighbours.

Notable

  • The netnames are BICOS-NET-32, BICOS-NET-36, BICOS-Net-96 and BICOS-Net-98. Each number is the third octet of the block it labels.
  • The capitalisation splits by range: the 212.100 blocks use NET, the 185.3 blocks use Net.
  • Two pairs share a netname. 212.100.32.0/23 and 212.100.34.0/23 are both BICOS-NET-32, and 185.3.98.0/24 and 185.3.99.0/24 are both BICOS-Net-98.
  • Every record is registered to BICOS NCC.

Interesting

  • Naming a block after its own third octet works until you subdivide, and then two networks answer to one label. That is exactly what happened here twice, which is the failure mode of every scheme that encodes an address into a name: the address stops being unique before the name does.
  • The case change is a smaller tell. 212.100 space was requested in one era and 185.3 in another, and between them somebody's habits changed, or somebody else started filling in the forms.

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, 1 downstream and 6 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS13237euNetworks GmbH193
AS198967BITel Gesellschaft fuer Telekommunikation mbH136
AS6805Telefonica Germany GmbH & Co.OHG5

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 7 prefixes · 3.33K addresses IPv6 1 prefixes

CountryNamePrefixes
DEGermany8

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS12466
Registry name
BICOS
Registrant
BICOS-NOC
Abuse contact
abuse@bicos.net
Registered
2002-08-12
Last changed
2017-02-14
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 6 with no ROA
ROAs
0 authorising AS12466
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
22 naming AS12466

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 1,773 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