# Internet connectivity disruption in Czech Republic

**Country:** 🇨🇿 Czechia (CZ)
**Date:** 2026-06-20
**Type:** Disruption
**Severity:** CRITICAL
**Status:** active

## Summary

IODA detected significant connectivity drop in Czech Republic. 16 critical alerts recorded.

## Metrics

- Confidence: 75%
- Measurements: 16
- Anomaly Rate: 74.6%

## Evidence

- **IODA** (alert): IODA detected critical level outage for Plzeňský
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Pardubický
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Středočeský
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Zlínský
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Prague
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Královéhradecký
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Jihomoravský
  - Observed: 2026-06-20
  - Confidence: 85%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Olomoucký
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Jihočeský
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Ústecký
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Moravskoslezský
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Pardubický
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Unknown Region in Czech Republic
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Vysočina
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Liberecký
  - Observed: 2026-06-20
  - Confidence: 77%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)
- **IODA** (alert): IODA detected critical level outage for Plzeňský
  - Observed: 2026-06-20
  - Confidence: 75%
  - [IODA live national dashboard (not a per-event permalink)](https://ioda.inetintel.cc.gatech.edu/country/CZ)

## What we cannot say

- **Who caused it** — measurement data alone does not attribute the interference to any government, ISP, or other actor.
- **Intent** — anomalous or unreachable measurements indicate interference, not a stated motive or a deliberate-vs-incidental determination.
- **Which networks** — no specific ASN/ISP is identified for this incident.
- **Sub-national scope** — measurement is aggregated at the country level; we cannot localize to a province, city, or network segment.
- **Independent corroboration** — this rests on a single source; treat it as a single-source signal, not a multi-source confirmation.
- **Whether this is censorship** — this is a connectivity *disruption* (outage) signal, not confirmed intentional blocking.

## Data Sources

ioda

## Citation

Voidly Research. (2026). Internet connectivity disruption in Czech Republic [CZ-2026-0009]. Retrieved from https://voidly.ai/incident/CZ-2026-0009

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*Report generated by Voidly Research on 2026-06-21*
*Data licensed under CC BY 4.0*
*Incident ID: CZ-2026-0009*
*Permalink: https://voidly.ai/incident/CZ-2026-0009*