AS21033 — ESSILOR

AS21033 announces 7 IPv4 prefixes covering 2,304 addresses and 0 IPv6 prefixes.

About this network

The AS handle ESSILOR is held by Essilor International SAS.

What it's used for

• The address space is dedicated to the corporate network of Essilor, a global leader in the design and manufacture of ophthalmic lenses. All seven announced prefixes carry the netname ESSILOR and are registered to MGN NOC; ESSILOR International SAS; Abuse Contact.
• The AS announces 2304 IPv4 addresses across 7 prefixes, all located in France. With only 2 observed neighbours, this ratio indicates a small, self-contained corporate estate rather than a transit or access provider. The fine subdivision of the address space suggests site-by-site segmentation for internal corporate infrastructure.

Notable

• The registrants for all prefixes are consistent with the announcer, listing MGN NOC; ESSILOR International SAS; Abuse Contact for every block.
• The inventory consists entirely of IPv4 space within the 193.242.0.0/16 range, with no IPv6 prefixes announced. The address blocks are contiguous or near-contiguous /23 and /24 allocations, typical of a legacy corporate network that has not expanded significantly.

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

Announced prefixes

• 193.242.5.0/24
• 193.242.6.0/23
• 193.242.9.0/24
• 193.242.11.0/24
• 193.242.17.0/24
• 193.242.42.0/23
• 193.242.46.0/24

Upstream networks

• AS8220 COLT Technology Services Group Limited
• AS139883 SPTEL PTE. LTD.

Adjacent networks

• AS8220 COLT Technology Services Group Limited
• AS139883 SPTEL PTE. LTD.