District brief
Iran, January 2026: twenty days below baseline
Window: 8–27 January 2026 · Iran · vintage 2026-07-16
National connectivity fell out of its normalcy band on 8 January 2026 and stayed out for twenty days. The national series bottomed near zero against its frozen baseline, and 163 of the 254 measured districts recorded negative episodes of their own inside the window. The pattern — near-total, simultaneous, province after province — is what a coordinated restriction looks like in measurement, though the data records the where and the how long, not the cause.
20
days below 90% of baseline
99%
deepest national shortfall
163
districts with their own episode
254
districts measured
The national record
One line, twenty days
The chart below is the national daily connectivity series against the baseline the anomaly model froze when the episode began. Freezing matters: a trailing baseline would chase the collapse downward and understate it, so depth is measured against what normal looked like before the window opened.
Daily share of measured addresses responding (solid) against the baseline the anomaly model froze when the episode began (dashed). The shaded span is the episode window.
A daily connectivity series collapsing far below its frozen baseline during the episode window, then recovering.The subnational record
Province by province
The same window, one level down. Every province listed recorded its own negative episode overlapping the national one; several sat at effectively zero for the duration. District-level records behind each province carry the same fields.
| Province | From | Days | Depth |
|---|---|---|---|
| Qazvin | 2026-01-16 | 12 | −100% |
| Bushehr | 2026-01-14 | 13 | −100% |
| Hormozgan | 2026-01-16 | 11 | −100% |
| Gilan | 2026-01-14 | 13 | −100% |
| Yazd | 2026-01-12 | 16 | −100% |
| Markazi | 2026-01-22 | 5 | −100% |
| Mazandaran | 2026-01-16 | 12 | −100% |
| Ardebil | 2026-01-22 | 4 | −100% |
| Semnan | 2026-01-17 | 11 | −100% |
| Kerman | 2026-01-09 | 18 | −100% |
Depth is the deepest daily shortfall against the frozen baseline during the episode, in per cent.
How to read this brief
An episode is a run of days outside the 99.9% prediction band of a fixed-effects model on hour-of-day and day-of-week over a 90-day trailing window. The brief records where connectivity fell, how deep and for how long. It is a measurement window, not an attribution of cause.
Independent, coarser-grained corroboration for national events is available from Cloudflare Radar’s outage centre, which observes traffic to its own network. Radar outage centre
