
Telecom data retention in the Quick Freeze era
European telecom operators are operating in a structurally altered legal environment. Following rulings by the Court of Justice of the European Union and the rollout of Regulation (EU) 2023/1543, lawful data retention has shifted from predictable general storage to hybrid, case-driven compliance.
Operators must now manage targeted retention, geographic extensions and Data Quick Freeze preservation simultaneously. This creates structural pressure points.

The REX Agile Platform
THE REX DATA RETENTION PLATFORM
Agile data quick freeze & hybrid retention in ONE platform
Subtonomy REX provides a configurable compliance layer purpose-built for telecom operators managing hybrid data retention and data quick-freeze obligations under Regulation (EU) 2023/1543.
One installation. Configurable retention logic. Automated preservation workflows.
CONFIGURABLE HYBRID TELECOM DATA RETENTION
REX enables configurable retention governance.
You define:
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Retention periods by metadata category (e.g., IP logs, traffic data, location data, and more).
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Geographic or risk-based extensions.
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Conditional extensions for national security logic.
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Automated purge aligned with proportionality principles.
AUTOMATED DATA QUICK FREEZE WITHIN 8-HOUR MANDATES
Upon receipt of a preservation order, REX Case Management System:
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Identifies relevant subscriber and network metadata
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Instantly locks data against automated purge cycles
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Applies case-linked preservation tags
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Logs every action with immutable timestamps
Concurrent freeze orders are managed centrally. Preservation transitions seamlessly into production workflows when required.
CASE LIFECYCLE & EVIDENTIARY INTEGRITY
REX manages the full lifecycle governance from preservation order intake, metadata correlation and indexing, structured export to complete audit documentation.
Telecom operators must balance proportionality with disclosure obligations. Risk exists on both sides:
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Over-retention leads to regulatory fines and supervisory scrutiny
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Under-production leads to judicial escalation
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Incomplete audit trails lead to evidentiary challenges
5G AND IOT READY
REX is designed for regulatory evolution. When legislation changes, you do not rebuild infrastructure. You update configuration logic. Whether the framework mandates 3 months, 12 months, targeted regional retention or full reliance on data quick freeze. The platform remains stable.
This reduces IT manpower, procurement exposure, compliance downtime and total cost of ownership (TCO).
Compliance becomes agile.

Security & Compliance Architecture
High-performance compliance architecture
REX operates in a dedicated, on-premise compliance environment that continuously consolidates relevant telecom metadata into a structured and indexed layer. Because data is prepared in advance:
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Searches execute in minutes or seconds
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Data Quick Freeze is applied without delay
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Retention policies can be adjusted without impacting production systems
The result is predictable, audit-ready compliance performance — with full data sovereignty maintained inside the operator’s infrastructure.

TRUSTED BY LEADING EUROPEAN OPERATORS
"Telenor Norway has recently implemented REX as a solution for handling authority requests. We are very pleased by both the system itself and with Subtonomy as a vendor. REX gives us a completely different workday in terms of easiness of use and query response time. Reports we previously had to wait several hours for are now generated in minutes or even seconds. Subtonomy impresses us by being very welcoming, customer-oriented and solution-focused, with high quality project deliveries and reliable support services."
TERJE RUDIN
Product Manager Police Response Center & NOC
@Telenor Norway
Frequently Asked Questions (FAQ) on Telecom Data Quick Freeze
Your Questions, Answered.
We understand that data retention involves complex technical, legal, and security details. To provide clarity, we've gathered straightforward answers to the most common questions about the REX platform, its capabilities, and its compliance.
Under Regulation (EU) 2023/1543, authorities may issue a European Preservation Order (EPO) requiring telecom operators to preserve specified electronic evidence without delay.
Operators must execute preservation within defined timelines, including 8-hour emergency cases. While national implementation varies, the obligation to support lawful preservation mechanisms is no longer optional.
General data retention stores predefined categories of metadata for fixed statutory periods.
Data Quick Freeze is reactive and case-specific. Upon receipt of a lawful order, specific subscriber-related metadata is immediately preserved, preventing deletion under automated purge cycles pending further legal process.
Retention is policy-driven. Quick Freeze is order-driven.
Yes. European telecom operators increasingly operate under hybrid frameworks combining targeted data retention and reactive preservation.
REX supports configurable retention logic and automated Data Quick Freeze within a single compliance platform, eliminating the need for parallel architectures.
All preservation, search and disclosure actions are:
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Cryptographically logged
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Timestamped
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Role-based access controlled
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Fully traceable end-to-end
This safeguards chain-of-custody integrity and ensures audit readiness under judicial review.
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Yes. REX is designed for Tier 1–4 CSPs, MNOs and ISPs operating at carrier-grade scale.
The platform supports:
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Millions of subscribers
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High concurrent lawful request volumes
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Hybrid retention models
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Sovereign on-premise deployment
It is built for performance stability across both large national operators and smaller regional providers.
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e-CODEX is far more than a portal; it is a decentralized, secure digital infrastructure that acts as the mandatory channel for all cross-border judicial data exchange in the EU. For an operator, a compliant telecom data retention solution must integrate natively with this architecture. This involves using e-CODEX "Gateways" and "Connectors" to create a fully automated, end-to-end workflow — from securely receiving a European Production Order (EPO) to validating it, executing the query, and delivering the secure report back through the e-CODEX channel.
Download the White Paper & Checklist:
Preparing for EU e-evidence & e-CODEX & Checklist


Stay ahead of the upcoming EU e-Evidence and e-CODEX requirements with our free resources.
Our in-depth white paper explains what the new regulation means for telecom operators, the challenges it introduces, and how Subtonomy REX can support compliance. To help you get started, we’ve also created a practical checklist to assess your organization’s readiness.
Fill out the form below to download both resources and take the first step toward compliance.
Prefer to talk to us directly? Contact Subtonomy here.


Download the White Paper & Checklist:
Preparing for EU e-evidence & e-CODEX & Checklist
Stay ahead of the upcoming EU e-Evidence and e-CODEX requirements with our free resources.
Our in-depth white paper explains what the new regulation means for telecom operators, the challenges it introduces, and how Subtonomy REX can support compliance. To help you get started, we’ve also created a practical checklist to assess your organization’s readiness.
Fill out the form below to download both resources and take the first step toward compliance.
Prefer to talk to us directly? Contact Subtonomy here.
Explore the Full Subtonomy REX Platform
While REX ensures your E-Evidence compliance, it's designed to solve challenges across your entire operation. See what else our unified platform can do for your business.

Telecom Data Retention Solution –
comply with national and EU regulations
Subtonomy REX is the industry’s most advanced platform for handling lawful telecom data retention requests, enabling secure, automated, and lightning-fast responses that are fully compliant with GDPR and upcoming national regulations.

