IPv6 throttling as protest control

States can selectively throttle or black‑hole IPv6/mobile address space to curtail mobile internet access during unrest; Cloudflare Radar and NetBlocks can detect large, sudden drops (e.g., Iran’s 98.5% IPv6 address collapse) that signal deliberate network interventions. Monitoring IPv6 share provides an early, technical indicator of targeted mobile cutoffs that are harder to mask than blanket outages. — Framing IPv6 throttling as a distinct repression tool helps journalists, diplomats and human‑rights monitors detect, attribute and respond to government censorship faster and with technical evidence.