asn.dev

Autonomous system

AS31220 CARRENZA-AS Six Degrees Technology Group Limited

Unclassified RIPE

IPv4 addresses 3.33K 5 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly GB
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Six Degrees Technology Group

United Kingdom · AI-generated

business enterprise uk corporate

The AS handle CARRENZA-AS is held by Six Degrees Technology Group Limited.

What it's used for

  • The address space carries corporate infrastructure, evidenced by netnames such as UK-SIXDEGREES and SDG-CAR-LD5 registered to Six Degrees Group Support.
  • The AS announces 3328 IPv4 addresses across 5 prefixes while maintaining only 1 observed neighbour, a ratio that indicates an internal corporate estate with site-by-site segmentation rather than a public access or transit network.

Notable

  • All registrants align with the announcer, consistently listing Six Degrees Technology Group Limited or Six Degrees Group Support for every prefix in the inventory.
  • The address inventory consists of five distinct IPv4 blocks, including two /22s and three smaller prefixes, all located in the United Kingdom.

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 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6908Six Degrees Technology Group Limited760

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, 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 5 prefixes · 3.33K addresses IPv6 0 prefixes

CountryNamePrefixes
GBUnited Kingdom5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS31220
Registry name
CARRENZA-AS
Registrant
MNT-6DG
Abuse contact
abuse@6dg.co.uk
Registered
2004-03-25
Last changed
2019-02-27
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 13 valid, 0 with no ROA
ROAs
5 authorising AS31220
ASPA
no ASPA record
IRR
100% registered · 13 of 13 announcements
Route objects
17 naming AS31220

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: 449 networks and 1,846 prefixes, as published 2026-11-03. 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