Confidence
7- Information type
- This record preserves Julien Holland's organization identity while leaving legal entity, network resources, service scope, leadership, and related public sources open for enrichment.
Related details
Public registry record identifies Julien Holland in relation to a named role, organisation, or operating context.
IPinfo lists AS210832 as Certigna SASU in France, under RIPE, with 768 IPv4 addresses, no IPv6 addresses, three IPv4 /24 ranges, and upstream/peer entries for AS15557 and AS35625.
commercial network intelligence index
IPinfo's RIPE-derived WHOIS page for 91.199.221.0/24 lists JH30496-RIPE as admin-c and tech-c, role Julien Holland, and route origin AS210832.
commercial mirror of ripe whois data
Oracle/MySQL identifies Julien Holland as IT Manager, Certigna, on a public Certigna customer page.
vendor customer profile
Oracle/MySQL case-study material identifies Julien Holland as IT Manager and describes Certigna's high-availability database architecture and trust-service-provider operating context.
vendor case study
Certigna's official about page describes the company as a Tessi subsidiary in cybersecurity and digital trust, recognized by ANSSI and offering authentication, cryptography, SSL, electronic signature, storage, and timestamping services.
official company website
DOCaufutur published a 2021 article attributed to Julien Holland as Responsable Infrastructure Informatique at Certigna.
trade media article
Last updated: 2026-06-12
