METRO Magazine Logo
MenuMENU
SearchSEARCH

An Inside Look at the Partnership that Will Boost SFMTA's Mobile Coverage

Boldyn Networks is delivering next-generation communication services across the Bay Area with its recently announced partnership with AT&T.

July 28, 2023
An Inside Look at the Partnership that Will Boost SFMTA's Mobile Coverage

Through this partnership, millions of passengers will be getting improved wireless connectivity across tunnels, stations, railcars, and surrounding areas.

Photo: SFMTA

2 min to read


AT&T and Boldyn Networks recently announced they are bringing coverage expansion for the San Francisco Municipal Transportation Agency (SFMTA). 

Through this partnership, millions of passengers will be getting improved wireless connectivity across tunnels, stations, railcars, and surrounding areas.

Ad Loading...

Benefits of the AT&T, Boldyn Networks Partnership

Transport connectivity benefits the community by delivering connectivity-driven enhancements to residents and businesses across the Bay Area, according to Christos Karmis, CEO of Boldyn Networks’ U.S. business. 

“The SFMTA network we’ve deployed helps improve the passenger experience, enables operational efficiencies, and boosts public safety,” Karmis said. “The SFMTA network also extends our existing high-density fiber footprint in the region, delivering the backbone required to improve 5G wireless connectivity, data center access, and enable connected buildings with indoor 5G coverage.”

Karmis also explained how this partnership developed.

“Our expertise in delivering 5G connectivity for some of the world’s largest and most complex transit systems in the U.S. and globally, coupled with BART’s commitment to enhancing the customer experience through their digital transformation initiatives, made us ideal partners to improve broadband connectivity for riders of the Central Subway system,” he added.

Boldyn Networks' Past Partnerships

Boldyn Networks has partnered with transit agencies in the past to bring connectivity to some of the biggest subway systems in the world, including the SFMTA and BART in the Bay Area, Sound Transit in Seattle, the MTA in New York City, TfL in London, UK, and more.

Ad Loading...

Highlights from past partnerships include:

  • In 2020, Boldyn Networks deployed its wireless connectivity infrastructure for Seattle’s Sound Transit multi-phase light rail system as part of the largest transit expansion project in the country. 

  • On the East Coast, Boldyn deployed its cellular and Wi-Fi connectivity across New York City’s underground metro system, including a dedicated 4.9 GHz public safety band licensed to the Metropolitan Transportation Authority (MTA). 

  • Boldyn Networks also transformed London's Underground “Tube” when it partnered with Transit for London (TfL) to bring 4G and 5G wireless connectivity to the city's passengers.

  • In Hong Kong, Boldyn Networks brought connectivity to the Mass Transit Railway (MTR) system, including connectivity for autonomous trains on the South Island Line.

Boldyn Networks is deploying connectivity across the BART system, including its “Fleet of the Future” trains.

“We look forward to sharing more on upcoming projects as we continue to expand our connected transport portfolio,” Karmis said.

Subscribe to Our Newsletter

More Technology

A RABA bus
Technologyby StaffApril 20, 2026

California's RABA Launches Tap2Ride Contactless Fare Payment Option

With this launch, RABA is also now live on Cal-ITP Benefits, becoming the ninth transit agency in California to join the platform and the first small transit provider in the state to offer automated, real-time low-income fare eligibility verification through Tap2Ride.

Read More →
A New York MTA bus simulator with driver
Technologyby StaffApril 20, 2026

New York MTA Unveils State-of-the-Art Bus Operator Training Simulators

Officials said the investment reflects the agency’s commitment to modernizing operator training while improving safety and operational readiness across the system.

Read More →
An MBTA paratransit vehicle.
Technologyby Staff and News ReportsApril 20, 2026

DEADLINE EXTENDED: Apply Now for METRO's 2026 Innovative Solutions Awards

Now in its latest edition, the awards recognize forward-thinking solutions that improve safety, operational efficiency, sustainability, rider experience, and overall system performance.

Read More →
Ad Loading...
A photo of a San Antonio VIA Metropolitan Transit zero-emission bus.
Busby Staff and News ReportsApril 20, 2026

Recovery and Risk Define the Transit Bus Market in 2025

A 5% rise in deliveries and a surge in zero-emission buses signaled progress in 2025, but high costs, long lead times, and shifting funding priorities continue to cloud the outlook.

Read More →
A Coach USA Van Hool CX 45 delivered by ABC Companies.
Busby StaffApril 15, 2026

ABC Delivers Van Hools to Coach USA and More in Biz Briefs

In METRO's latest installment, we take a look at the latest news from suppliers including Moovit, CAF, and more.

Read More →
A photo of an Amtrak train with a logo
Technologyby StaffApril 15, 2026

Amtrak Advances Plan for New Long-Distance Fleet

The railroad has issued a formal request for proposals to manufacturers for more than 800 new passenger railcars that will serve 14 long-distance routes nationwide.

Read More →
Ad Loading...
A headshot of Inez Evans Benson
Busby Alex RomanApril 15, 2026

Inez Evans Benson on Rethinking Transit Through Customer Experience

The WSP leader discusses why agencies must look beyond satisfaction metrics and take a more holistic, community-driven approach to service.

Read More →
NJ TRANSIT's new Multilevel III commuter railcar manufactured by Alstom
Technologyby StaffApril 14, 2026

Alstom Delivers First Multilevel III NJ TRANSIT Commuter Railcar

The delivery marks the first car in a 374‑vehicle order and begins the arrival of a new generation of higher‑capacity, more reliable, and more comfortable trains for one of the country’s busiest commuter rail systems.

Read More →
Bus driving down road demonstrating ACE
Technologyby StaffApril 10, 2026

New York MTA Extends Automated Camera Enforcement Program

Vehicles that improperly use busways and bus lanes, block bus stops, or illegally double-park will receive warning notices in the mail for an initial period of 60 days, followed by summonses thereafter.

Read More →
Ad Loading...
A product grouping image of the AngelTrax Vulcan Series VX4AI All-in-One MDVR and V1284HC MDVR
Security and Safetyby StaffApril 8, 2026

AngelTrax, City of Freeport Partnership to Enhance Fleet Safety

The project, finalized on February 12, provides the city with two different configurations of high-definition cameras to outfit 16 buses in the Pretzel City Area Transit fleet.

Read More →