AS21000 — ATOS-AS

AS21000 announces 6 IPv4 prefixes covering 9,216 addresses and 0 IPv6 prefixes.

About this network

The AS handle ATOS-AS is held by Atos France SAS.

What it's used for

• The address space carries corporate infrastructure, evidenced by netnames such as FR-ATOSNET, FR-ATOSNET-INFRA-114, and FR-ATOSNET-INFRA-241.
• The AS announces 9,216 IPv4 addresses across 10 prefixes with only 4 observed neighbours, indicating a small internal corporate estate rather than a transit or access network.

Notable

• Registrants are consistent with the announcer, primarily listing Atos France SAS and ATOS-INFOGERANCE-SVA, with some prefixes registered to W-HA SA.
• The address inventory is finely subdivided into multiple /24 and /23 blocks, reflecting site-by-site segmentation typical of a large enterprise.
• No IPv6 prefixes are announced in the inventory.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 80.78.0.0/20
• 129.185.224.0/20
• 193.28.205.0/24
• 193.56.114.0/24
• 193.56.241.0/24
• 193.164.148.0/24

Upstream networks

• AS6461 Zayo Bandwidth
• AS5400 British Telecommunications Limited
• AS198949 Radware Ltd
• AS13335 Cloudflare, Inc.

Adjacent networks

• AS6461 Zayo Bandwidth
• AS5400 British Telecommunications Limited
• AS198949 Radware Ltd
• AS13335 Cloudflare, Inc.

Internet exchanges

• France-IX Paris — Paris, France