- Tech News & Insight
- October 8, 2025
- Hema Kadia
AT&T has gone live on Boldyn Networks’ neutral-host infrastructure in New York’s Joralemon Street tunnel, with G line tunnel segments next in the rollout. AT&T customers can now access 5G mobile service through the 1.1-mile (1.8 km) Joralemon Street tunnel, the oldest underwater subway tunnel in New York City, which links the 4/5 lines between Borough Hall in Brooklyn and Bowling Green in Manhattan. Subway connectivity has shifted from convenience to critical infrastructure for safety, accessibility, and productivity. AT&T’s first-mover status sets a competitive benchmark; other national carriers (Verizon and T‑Mobile) are expected to follow as on-boarding progresses across the system.