A latency corridor is a pair of trading sites between which several networks compete to carry latency-sensitive traffic, each selling its route by its one-way latency: London–Frankfurt, Chicago–New Jersey, Zurich–Frankfurt.
| Microwave route | Geodesic | Published | Floor in | Route | Fibre floor |
| (km) | (ms) | air (ms) | factor | (ms) | |
| LD4 – FR2 (2015) | 677.7 | 2.32 | 2.261 | 1.026 | 3.305 |
| LD4 – Bergamo IT3 (2024) | 992.2 | 3.311 | 4.839 |
nw_europe.route_rows().