CEREMA Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement
Monitoring this dormant ASN matters because its activation would immediately insert the organization into global BGP routing tables, creating new dependency relationships and exposure to route hijacks or leaks. Conversely, a reassignment or deletion would remove a future infrastructure concern. The current absence of announced prefixes is itself a signal worth tracking for network operators and infrastructure analysts.
Auteurliz.lu@btw.media
Editorial owner accountable for this profile route.
Temps de lecture3 min
Estimated reading time at standard editorial pace.
Publié leMay 26, 2026
Date this profile last entered editorial circulation.
Last updateJun 02, 2026
Date this profile last entered editorial circulation.
CategoryDigital infrastructure institution
Controlled classification used for cross-profile comparison.
RégionFrance
Primary geography where current signals are most visible.
Signal FocusInstitution Type
Principal area tracked in this intelligence profile.
Type de contenuProfile
Structured profile used for cross-category comparison.
Domaine principalInfrastructure
Primary editorial domain framing the analysis.
SujetDigital infrastructure institution
Controlled taxonomy label used for this profile route.
HorizonQuarter (30-120d)
Most likely window for material strategy effects.
ImpactMediumThe signal alters planning assumptions but usually requires secondary implementation before full effect.
Confiance0.70
Multi-source inference with primary-source anchors.
Dossier de preuves
Sources primaires utilisées pour la classification et l'évaluation d'impact.
CEREMA Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement holds dormant AS211835 with no active BGP announcements. The organization's presence is limited to RIPE NCC and RDAP registry entries. The name suggests a French public research institution, but this is not independently confirmed. Monitoring focuses on any activation or registry change that would turn a dormant record into an active routing participant or remove it entirely. Key gaps include lack of a website, PeeringDB profile, or named contacts.
Core Entity Brief
Core Entity Brief
Entity
CEREMA Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement
Public role
Monitoring this dormant ASN matters because its activation would immediately insert the organization into global BGP routing tables, creating new dependency relationships and exposure to route hijacks or leaks. Conversely, a reassignment or deletion would remove a future infrastructure concern. The current absence of announced prefixes is itself a signal worth tracking for network operators and infrastructure analysts.
Region
France
Category
Digital infrastructure institution
Primary domain
Infrastructure
Signal focus
Institution Type
Time horizon
Quarter (30-120d)
Impact
Medium
Confidence
0.70
Evidence coverage
3 public source references
Related coverage
Profile anchor article
Website
Public evidence pending
Last update
Jun 02, 2026
CEREMA Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement holds dormant AS211835 with no active routing and no public operational footprint.
What It Does
ASN holder: The organisation administratively controls an Autonomous System number but has no known services, customers, or revenue tied to internet infrastructure.
Absence of commercial activity: No announcements, peering agreements, or connectivity products are evident. A business model—if any—is not publicly documented.
Operating Snapshot
Registry record: AS211835 is registered in the RIPE NCC service region with a French country code and no associated abuse contacts.
Routing status: The ASN does not originate any IPv4 or IPv6 prefixes. It is invisible in all public BGP monitoring feeds.
External presence: No company website, PeeringDB profile, or social media presence has been located. The organisation's name appears only in the registry text string.
Control Surface
RIPE NCC object maintenance: All control is mediated through the LIR portal. An authorised user can update the ASN's description, status, or point of contact, directly shaping the only public-facing evidence.
Evidence volatility: New registry data, such as an added abuse contact or organisational website URL, would refine the profile. Conversely, a one-line change to the holder name could misattribute the resource.
Watchpoints
Routing activation: The first BGP announcement from AS211835 would signal operational use and require evaluation of interconnection, policy, and security posture.
Registry updates: Changes to the ASN's organisation handle, contacts, or status can indicate a transfer, reclamation, or shift in administrative responsibility.
External verification: Discovery of a matching official website, corporate filing, or government directory entry could confirm the institution's real-world identity and clarify intent.
Domain of operation
Monitoring this dormant ASN matters because its activation would immediately insert the organization into global BGP routing tables, creating new dependency relationships and exposure to route hijacks or leaks. Conversely, a reassignment or deletion would remove a future infrastructure concern. The current absence of announced prefixes is itself a signal worth tracking for network operators and infrastructure analysts.
Public role: CEREMA Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement is framed by monitoring this dormant asn matters because its activation would immediately insert the organization into global bgp routing tables, creating new dependency relationships and exposure to route hijacks or leaks. conversely, a reassignment or deletion would remove a future infrastructure concern. the current absence of announced prefixes is itself a signal worth tracking for network operators and infrastructure analysts. and public infrastructure context. Evidence basis: Internet registry record; Registry RDAP / WHOIS record
Operating surface: Digital infrastructure institution and France provide the public context for this institution profile. Evidence basis: Internet registry record; Registry RDAP / WHOIS record
Timeline
CEREMA Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement public profile updated
Public coverage records CEREMA Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement as a subject for role, operating context, and evidence review.
Signal Map
Signal Map
Why tracked: Monitoring this dormant ASN matters because its activation would immediately insert the organization into global BGP routing tables, creating new dependency relationships and exposure to route hijacks or leaks. Conversely, a reassignment or deletion would remove a future infrastructure concern. The current absence of announced prefixes is itself a signal worth tracking for network operators and infrastructure analysts.
Object role: The organization's observable role is administrative: it controls the registration of AS211835 in the RIPE NCC registry. There is no evidence of network operation, peering, connectivity services, or any other internet infrastructure activity. The ASN is administratively held but unused, making the organization a dormant resource holder with no current routing influence.
Impact note: If AS211835 begins announcing IP prefixes, CEREMA could influence internet routing paths and become a point of operational dependency. Even in dormancy, the unexplained assignment of an ASN to an organization with no public operational footprint raises questions about unannounced network planning, resource hoarding, or administrative artefact. Changes to the registry entry would directly alter the intelligence baseline for this subject.
Control surface: public operating records, official service pages, source-backed relationship updates
Key dependencies: official company sources, public registries, operator-published records
Public View
The public read of CEREMA Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement is limited to visible role, operating context, and relationship evidence.
Watchpoints
New public role, affiliation, product, policy, or market disclosures.
Verified relationship changes involving named organizations or people.
Caveats
Private or unverified claims are excluded from this public view.
FAQ
Why is CEREMA Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement included?
CEREMA Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement has public evidence that makes the institution relevant to BTW's coverage of digital infrastructure, governance, or markets.
What is public about this profile?
The public layer covers visible role, operating context, linked organizations, and evidence-backed watchpoints.
What should readers watch next?
Readers should watch for source-backed role changes, new partnerships, regulatory exposure, operating expansion, or evidence that changes the public assessment.
