STJ SAS warrants monitoring because its entire public internet presence—a single ASN and one IPv4 prefix—forms the reachability layer for call center VoIP services. Any registry change, route announcement, or upstream reconfiguration can immediately impact those downstream voice operations, making it a concentrated risk point for network operators and incident responders.
Autorkayla.zhang@btw.media
Editorial owner accountable for this profile route.
Tiempo de lectura3 min
Estimated reading time at standard editorial pace.
PublicadoJun 02, 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.
RegiónFrance
Primary geography where current signals are most visible.
Signal FocusInstitution Type
Principal area tracked in this intelligence profile.
Tipo de contenidoProfile
Structured profile used for cross-category comparison.
Dominio principalInfrastructure
Primary editorial domain framing the analysis.
TemaDigital infrastructure institution
Controlled taxonomy label used for this profile route.
Horizonte temporalQuarter (30-120d)
Most likely window for material strategy effects.
ImpactoMediumThe signal alters planning assumptions but usually requires secondary implementation before full effect.
Confianza0.95
Anchored to multiple primary-source references and direct disclosures.
Paquete de evidencia
Fuentes primarias utilizadas para la clasificación y la puntuación de impacto.
STJ SAS is a French Société par Actions Simplifiée operating as STJ Telecom, a VoIP provider for call centers. Its internet presence is limited to AS210839 and a single /24 IPv4 block, with no active BGP announcements observed. Registry records confirm its legal identity and ARCEP operator number, but no PeeringDB, customer, or financial data is publicly available. Key watchpoints include the first BGP appearance of its prefix, changes to RIPE aut-num or org records, and corporate filing updates. The main uncertainty is the mismatch between broad declared activities and the tiny observable network footprint.
Core Entity Brief
Core Entity Brief
Entity
STJ SAS
Public role
STJ SAS warrants monitoring because its entire public internet presence—a single ASN and one IPv4 prefix—forms the reachability layer for call center VoIP services. Any registry change, route announcement, or upstream reconfiguration can immediately impact those downstream voice operations, making it a concentrated risk point for network operators and incident responders.
Region
France
Category
Digital infrastructure institution
Primary domain
Infrastructure
Signal focus
Institution Type
Time horizon
Quarter (30-120d)
Impact
Medium
Confidence
0.95
Evidence coverage
8 public source references
Related coverage
1 linked article
Website
Public evidence pending
Last update
Jun 02, 2026
STJ SAS operates AS210839, providing VoIP services for call centers from a single /24 IPv4 block in France.
What It Does
Declared services: STJ Telecom's legal notice and company registration describe it as a VoIP operator for call centers, a provider of internet access, data hosting, and network capacity resale. However, no customer references or service pages confirm which of these activities are active.
Revenue model gap: No financial, contract, or customer evidence is publicly available to explain how STJ SAS generates revenue or how large its customer base is.
Operating Snapshot
Legal identity: STJ SAS, SIREN 795 206 523, located at 16 Rue du Chateau, 14840 Demouville, France. Operates under the brand 'STJ Telecom'.
Number resources: AS210839 assigned by RIPE NCC, as-name STJ; a single IPv4 prefix 185.224.172.0/24 (256 addresses) is tied to the company, with no IPv6 allocations.
Routing state: No BGP announcements are currently observed for 185.224.172.0/24, suggesting the prefix may not be actively routed or is used internally.
Control Surface
AS210839 registry record: The RIPE aut-num object for AS210839 defines import/export policy with upstreams AS199248 and AS8218. Changes to this record affect how the network is seen in the global routing table.
ARCEP operator licence: STJ SAS holds ARCEP operator number 14-0340, which formalises its right to operate as a telecommunications carrier in France. Revocation or non-renewal could impact its legal authority to provide services.
Watchpoints
Registry record changes: Any modification to the RIPE organisation or aut-num objects (e.g., new sponsoring LIR, changed contact emails) may indicate ownership or operational shifts.
Prefix visibility: If 185.224.172.0/24 begins to be announced in BGP, it would confirm active use and potentially reveal downstream dependencies through routing paths.
Corporate filings: Changes in the French commercial registry (e.g., dissolution, new directors, address change) would directly affect the company's status and operational continuity.
Domain of operation
STJ SAS warrants monitoring because its entire public internet presence—a single ASN and one IPv4 prefix—forms the reachability layer for call center VoIP services. Any registry change, route announcement, or upstream reconfiguration can immediately impact those downstream voice operations, making it a concentrated risk point for network operators and incident responders.
Public role: STJ SAS is framed by stj sas warrants monitoring because its entire public internet presence—a single asn and one ipv4 prefix—forms the reachability layer for call center voip services. any registry change, route announcement, or upstream reconfiguration can immediately impact those downstream voice operations, making it a concentrated risk point for network operators and incident responders. and public infrastructure context. Evidence basis: Registry RDAP / WHOIS record; stj-telecom.com
Operating surface: Digital infrastructure institution and France provide the public context for this institution profile. Evidence basis: Registry RDAP / WHOIS record; stj-telecom.com
Timeline
STJ SAS public profile updated
Public coverage records STJ SAS as a subject for role, operating context, and evidence review.
Signal Map
Signal Map
Why tracked: STJ SAS warrants monitoring because its entire public internet presence—a single ASN and one IPv4 prefix—forms the reachability layer for call center VoIP services. Any registry change, route announcement, or upstream reconfiguration can immediately impact those downstream voice operations, making it a concentrated risk point for network operators and incident responders.
Object role: STJ SAS performs the role of a voice-over-IP operator for call centers, as stated in its legal notice and ARCEP registration, while also listing broader telecom and IT activities in the French commercial registry. In internet infrastructure, it controls AS210839 and the 185.224.172.0/24 prefix, serving as an origin for traffic under its own routing policy—though that prefix is not currently seen in the global routing table.
Impact note: The practical impact lies in the potential for service disruption: if AS210839 or its prefix becomes unreachable due to routing changes, registry errors, or upstream failures, call center customers relying on STJ Telecom would experience voice service outages. Conversely, changes in registry data can signal mergers, acquisitions, or operational shifts that alter risk exposure.
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 STJ SAS 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 STJ SAS included?
STJ SAS 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.
