AS49011 — MACS-THD-AS

AS49011 announces 2 IPv4 prefixes covering 12,288 addresses and 1 IPv6 prefixes.

About this network

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.

Announced prefixes

• 95.174.160.0/19
• 178.19.0.0/20
• 2a00:cc80::/32

Upstream networks

• AS15557 SFR SA

Adjacent networks

• AS15557 SFR SA

Routing security

• RPKI: 3 valid, 0 invalid and 0 not-found announcements; 3 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 3 route objects.
• Listed in as-sets: AS-MACS-THD, AS198949:AS-SD.