The subway dead zone is finally starting to crumble. Riders zipping under the East River and through key stretches of Brooklyn, Queens and Manhattan are beginning to see full cellular service in tunnels where the signal used to drop the second the doors closed.
Where service is live now
The latest round of activations brings coverage to parts of the 4 and 5 lines between Bowling Green and Fulton Street, and to the G train between Bedford–Nostrand Avenues and Hoyt–Schermerhorn Streets. Combined with November's earlier switch-on between Court Square and Bedford–Nostrand, riders now get continuous service on the 4/5 between Borough Hall and Fulton Street and on the G from Court Square to Hoyt–Schermerhorn.
All told, that makes five longer underground stretches with coverage, and some of those segments now support full 5G connectivity, according to Time Out.
Who turned the lights on
AT&T and neutral-host provider Boldyn Networks are the companies powering the new connections. AT&T says it is the first carrier to be fully on-air in both the G line and the Joralemon Street tunnel. “Every new section we light up brings us closer to a fully connected New York,” John Emra, president of AT&T's Atlantic Region, said in a release from AT&T.
Part of a systemwide build
Boldyn Networks and its partners say the long-term plan is to bring cellular coverage to all 418 miles of subway track, a program the MTA and private partners first flagged in 2022. “This kind of progress doesn't happen without great partners,” Ken Ranger, SVP of Transit Operations at Boldyn Networks, said in a release from Boldyn Networks. The work is being phased in to line up with overnight track access and other capital projects.
What riders should expect
Coverage is coming online in stages, and not every carrier is live in every tunnel yet. If your phone suddenly wakes up underground, it probably means your operator has just been activated on that stretch. MTA officials say installations are scheduled around signal upgrades and construction windows, which helps explain why some sections go live while others nearby stay dark a little longer, officials told Gothamist.
Why this matters
Beyond letting riders scroll, stream or text during their commute, a wired tunnel network can bolster emergency communications and support future digital signaling and operations work. The 42nd Street Shuttle activation in 2024 served as an early, high-profile proof of concept for the approach, a release from Boldyn Networks noted.
If your daily ride now passes through one of these newly lit tunnels, you might want to try a quick call the next time you head below ground. The systemwide buildout still has years to run, but the latest activations suggest the days of dead‑zone subway trips are finally numbered.
