asn.dev

Autonomous system

AS47720 CIX-AS

Unclassified RIPE

IPv4 addresses 15.62K 10 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly IE
Exchanges 4 recorded by PCH
Upstreams 21 7 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 4 exchanges in 2 countries, largest first.

ExchangeLocationTheir address
LINX LON1London, United Kingdom195.66.225.176
Internet Neutral Exchange Association CLG - LAN1Dublin, Ireland185.6.36.106
Internet Neutral Exchange Association CLG - LAN2Dublin, Ireland194.88.240.88
Internet Neutral Exchange Association CLG - CorkCork, Ireland185.1.69.15

Transit providers

21 upstream, 7 downstream and 41 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3257GTT Communications Inc.238
AS8220COLT Technology Services Group Limited195
AS6939Hurricane Electric LLC194
AS1273IDDQD-AS77
AS34549meerfarbig GmbH & Co. KG38
AS50304Blix Solutions AS18
AS24482SG.GS11
AS48185team.blue NV11

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 10 prefixes · 15.62K addresses IPv6 3 prefixes

CountryNamePrefixes
IEIreland13

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS47720
Registry name
CIX-AS
Registrant
MNT-CIX
Abuse contact
noc@cix.ie
Registered
2008-08-07
Last changed
2020-03-30
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
6% valid · 1 valid, 15 with no ROA
ROAs
1 authorising AS47720
ASPA
no ASPA record
IRR
94% registered · 15 of 16 announcements
Route objects
15 naming AS47720

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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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