asn.dev

Autonomous system

AS49011 MACS-THD-AS

Unclassified RIPE

IPv4 addresses 12.29K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly FR
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

MACS THD

France · AI-generated

business france sfr

MACS-THD-AS is operated by MACS THD, a Paris-based entity.

What it's used for

  • The address space carries SFR infrastructure, evidenced by netnames FR-SFR-20090324 and FR-SFR-20100427 and reverse DNS entries ending in rev.sfr.net.
  • The AS announces 12,288 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating a small, isolated network segment rather than a transit or large access network.
  • Traffic from this AS consists of SFR corporate or technical endpoints, given the registrant history linking to SFR SA and its former names Neuf Cegetel and LDCOM Networks.

Notable

  • Registrants for both announced prefixes list SFR Legal and Tech Contacts, identifying the space as part of the SFR estate despite the AS being registered to MACS THD.
  • The address inventory is compact, consisting of two IPv4 blocks (95.174.160.0/19 and 178.19.0.0/20) and one IPv6 block (2a00:cc80::/32), all located in France.

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS15557SFR SA151

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 · 12.29K addresses IPv6 1 prefixes

CountryNamePrefixes
FRFrance3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS49011
Registry name
MACS-THD-AS
Registrant
MACS-THD-MNT
Abuse contact
lir@gaoland.net
Registered
2009-03-24
Last changed
2025-02-13
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 3 valid, 0 with no ROA
ROAs
3 authorising AS49011
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
3 naming AS49011

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 1,782 prefixes, as published 2026-10-16. 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