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.