Per-ASN forecasting: not viable today. The probe network needs 5× more ASN coverage first.

We prototyped per-ASN granular forecasting (one model per ISP/AS) per Saha et al. WebSci 2025. Of 168 ASN-tagged ASs in our evidence corpus, only 6 had ≥30 measurement days — and only 1 had enough class variance to train. The data isn't there yet. Filing this as a probe-network expansion priority instead.