MeshCore Boston — Communication Without Internet

Bring the MeshCore Mesh Network to Boston

During the 2013 Boston Marathon bombing, authorities shut down cell networks across the city as a security measure — leaving millions unable to reach loved ones or call for help. Community members across Boston are now building a MeshCore mesh network — small radio devices that let you send messages without internet, without cell towers, without any infrastructure. Just people and radios.

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Why Bostonians Won't Leave Communication to Chance

Boston is a city shaped by its relationship with the Atlantic — and increasingly vulnerable to it. The January 2018 bomb cyclone brought record-breaking coastal flooding to the Seaport, Long Wharf, and downtown streets, with seawater pouring into Back Bay — a neighborhood literally built on landfill. The winter of 2015 buried the city under a staggering 108 inches of snow, paralyzing the T for weeks and isolating entire neighborhoods. And when cell networks were deliberately shut down during the 2013 Marathon bombing aftermath, Bostonians learned that even functioning infrastructure can be taken away in a crisis.

That's why community members are building a MeshCore mesh network — an independent communication layer that doesn't depend on cell towers, internet, or the power grid. Each small radio device communicates directly with nearby devices using LoRa signals. Messages hop from device to device across the city. The more Bostonians who join, the stronger this community safety net becomes.

The Case for Independent Communication in Boston

Coastal Flooding Threatens Core Infrastructure

Boston faces accelerating coastal flood risk as sea levels rise. The 2018 bomb cyclone pushed record storm surge through the Seaport District, Long Wharf, and Aquarium — flooding streets with seawater in areas that house critical telecom and power infrastructure. Back Bay, the South End, and much of downtown sit on filled tidal flats just feet above high tide. A community-built MeshCore mesh network with battery-powered nodes is designed to operate without infrastructure — making it a useful preparedness tool for a city increasingly vulnerable to ocean surges.

Nor'easters and Record Snowfall Cripple the City

The winter of 2015 dropped 108 inches of snow on Boston — the snowiest winter in recorded history. The MBTA shut down entirely for days. Streets became impassable. Power outages spread across neighborhoods from Dorchester to Brighton. Nor'easters slam the region every winter, and each one threatens to isolate residents from communication when they need it most. A MeshCore mesh network operates on its own frequencies, completely independent of cellular infrastructure — a useful preparedness tool when snowfall buries the city.

Cell Networks Can Be Shut Down or Overwhelmed

During the 2013 Boston Marathon bombing, authorities shut down cell networks as a security precaution — cutting off millions of residents and visitors from the ability to communicate. Even during routine events, cell networks buckle when crowds flood Fenway Park, the Esplanade on the Fourth of July, or the Marathon route. A community-built MeshCore mesh network uses LoRa radio frequencies that operate entirely outside the cellular system. No carrier can throttle it, no authority can switch it off.

Compact City with a Tech Community Ready to Build

Boston is one of the most compact and walkable major cities in America, which makes it ideal for mesh networking. Nodes placed a few blocks apart can blanket entire neighborhoods. With MIT and Harvard just across the river and a massive tech community throughout Greater Boston, this city has the technical talent to build one of the strongest urban mesh networks in the country. From Cambridge to Quincy, the density and enthusiasm are already here.

How MeshCore Moves Messages Across Boston

MeshCore uses LoRa (Long Range) radio technology to send encrypted messages between small, affordable devices. Each device acts as both a communicator and a relay — passing messages along to nearby devices. No Wi-Fi, no cellular, no internet required. A device on a windowsill in Jamaica Plain can relay a message from Dorchester to Beacon Hill through a chain of community nodes.

Repeaters placed on rooftops and high floors dramatically extend range. A single solar-powered repeater on a rooftop in Back Bay can bridge the South End to Cambridge across the river. Community members build this network together — each new device strengthens coverage for everyone. It's useful every day for private, off-grid communication — and critical when nor'easters, flooding, or outages knock out traditional networks. Check the network map to see current nodes in your area.

Learn More About MeshCore How Mesh Networks Work

Neighborhoods Building the Boston MeshCore Network

Back Bay & Beacon Hill

Boston's iconic brownstone neighborhoods sit at the heart of the mesh network. Beacon Hill's elevation provides natural signal advantage, while Back Bay's grid layout — rare in Boston — creates predictable node-to-node coverage. Repeaters on Prudential Center or Hancock Tower-area rooftops can reach Cambridge, the Seaport, and Brookline in every direction. These neighborhoods are also among the most vulnerable to coastal flooding, making mesh coverage here especially critical.

South Boston & Seaport

The Seaport District saw record flooding during the 2018 bomb cyclone, and rising sea levels put this rapidly growing neighborhood at the front line of Boston's climate risk. South Boston's dense triple-decker housing and waterfront exposure make it both a priority and an opportunity for mesh coverage. Nodes along the waterfront benefit from unobstructed signal paths across the harbor, connecting to East Boston, the downtown skyline, and out toward Quincy.

Cambridge & Somerville

Home to MIT and Harvard, Cambridge and Somerville bring unmatched technical talent to the MeshCore mesh network. The dense urban fabric of Davis Square, Central Square, and Kendall Square creates ideal mesh conditions — nodes just blocks apart forming a tight web of coverage. Repeaters on university buildings can bridge across the Charles River into downtown Boston, linking the academic corridor directly to the city network.

Jamaica Plain & Dorchester

Boston's largest and most diverse neighborhoods are essential to building a citywide mesh. Dorchester's sprawling geography and Jamaica Plain's engaged community culture create strong foundations for neighborhood-level mesh clusters. Nodes along the Orange Line corridor from Forest Hills through Roxbury connect these neighborhoods into the downtown backbone. Every device added here extends the network south toward Quincy and Braintree.

Practical Ways Bostonians Use MeshCore

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Nor'easter and coastal flood preparedness: When the next bomb cyclone floods the Seaport and knocks out power across the waterfront, your MeshCore device keeps you connected to neighbors and family on battery alone. It's designed to operate without infrastructure — a useful preparedness tool for a coastal city facing rising seas.
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Marathon, Fenway, and city events: Stay connected with your group along the Marathon route, at Fenway Park, on the Esplanade for the Fourth of July, or at any event where hundreds of thousands overwhelm cell networks. No carrier needed, no signal congestion.
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T dead zones and private messaging: Send encrypted messages through the MBTA subway tunnels where cell signals vanish — the Green Line, the Red Line under Cambridge, the Orange Line through downtown. End-to-end encryption means your messages never touch a corporate server — no data collection, no tracking, no third-party access.
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Campus and neighborhood coordination: Coordinate across your block, your dorm, or your neighborhood without relying on apps that need internet. Ideal for university groups at MIT and Harvard, neighborhood associations in Jamaica Plain, community organizing in Dorchester, and block networks across the city.

Become Part of Boston's MeshCore Network

1

Get a MeshCore Device

Pick up a LoRa radio from our recommended devices list. Compact options like the Heltec V3 or T-Deck fit easily in a backpack or on a windowsill. Prices start around $25.

2

Flash and Configure

Follow our beginner-friendly setup guide to flash MeshCore firmware and configure your device. Takes about 15 minutes. No technical expertise required.

3

Connect to the Boston Network

Power on your device and it automatically discovers nearby nodes. Place it near a window — ideally facing the city skyline or across the river for best range. You're now part of the Boston mesh.

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Boston MeshCore FAQ

What makes MeshCore a useful preparedness tool for Boston's coastal flooding?

MeshCore devices are solid-state electronics with no moving parts, designed to operate independently of cell towers, internet, or grid power. Because MeshCore doesn't depend on traditional infrastructure, it remains a useful preparedness tool for a coastal city like Boston where storm surge can flood telecom facilities and knock out power. Battery-powered and solar-powered nodes can continue relaying messages when wired networks go down. For a city where entire neighborhoods like Back Bay sit on filled tidal land just feet above sea level, having an infrastructure-independent communication option is practical preparedness.

Is there MeshCore coverage in my Boston neighborhood?

Coverage is growing across Greater Boston. Check the live network map to see active nodes near you. Back Bay, Cambridge, and Somerville have the densest coverage currently, with South Boston, Jamaica Plain, and Dorchester expanding steadily. The network also reaches into surrounding cities including Brookline, Newton, Watertown, Arlington, Medford, Malden, Waltham, Chelsea, Quincy, and Braintree. Even if your area doesn't have coverage yet, your device becomes the first node — and others nearby will follow.

Do I need a license or permission to use MeshCore in Boston?

No license required. MeshCore devices operate on the 915 MHz ISM band, which is license-free in the United States under FCC Part 15 regulations. You can use your device in your apartment, on your rooftop, or carry it across the city and into Cambridge, Somerville, or anywhere in Greater Boston. It's the same frequency band used by many everyday consumer electronics.

Boston Is Going Off-Grid — Be Part of It

Bostonians are building a communication network that belongs to the community — not a corporation. Use it daily for private, off-grid messaging. Rely on it as a preparedness tool when nor'easters, coastal flooding, or outages take down the networks everyone else depends on. Every device added makes the network stronger — from Beacon Hill to Braintree, from Cambridge to Quincy.