Moscow to St Petersburg 18ms, Yekaterinburg 35ms, Novosibirsk 50ms, Helsinki 25ms, Frankfurt 50ms. For PBX builds serving CIS, the domestic latency is unbeatable. For mixed CIS plus EU workloads, latency to Frankfurt is still inside the toll-quality budget.
MSK-IX peering covers most domestic Russian carriers. International transit via several Tier 1s with Moscow PoPs.