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Cell Coverage ยท Internet Availability

The Broadband Map API

For any US location, provide latitude and longitude coordinates and receive data on internet provider availability or cell signal strength.

See the API documentation for endpoints, parameters, and example responses. Billing for paid plans is on a monthly basis. Cancel anytime.

Sample requests & responses

Times Square (lat: 40.758, lng: -73.985)

Internet Availability Endpoint

curl -H "Authorization: Bearer API_KEY" \
  "https://broadbandmap.com/api/v1/location/internet?lat=40.758&lng=-73.985"
{
  "lat": 40.758,
  "lng": -73.985,
  "h3_hex": "882a100d67fffff",
  "h3_resolution": 8,
  "service_type": "residential",
  "count": 3,
  "providers": [
    {
      "name": "Verizon",
      "technology": "Fiber",
      "max_download_mbps": 2300,
      "max_upload_mbps": 2300
    },
    ...
  ]
}
Show full response
{
  "lat": 40.758,
  "lng": -73.985,
  "h3_hex": "882a100d67fffff",
  "h3_resolution": 8,
  "service_type": "residential",
  "count": 3,
  "providers": [
    {
      "name": "Verizon",
      "technology": "Fiber",
      "max_download_mbps": 2300,
      "max_upload_mbps": 2300
    },
    {
      "name": "Spectrum",
      "technology": "Cable",
      "max_download_mbps": 1000,
      "max_upload_mbps": 1000
    },
    {
      "name": "T-Mobile",
      "technology": "Fixed Wireless",
      "max_download_mbps": 100,
      "max_upload_mbps": 20
    }
  ]
}

Cell Signals Endpoint

curl -H "Authorization: Bearer API_KEY" \
  "https://broadbandmap.com/api/v1/location/cell?lat=40.758&lng=-73.985"
{
  "lat": 40.758,
  "lng": -73.985,
  "h3_hex": "892a100d67bffff",
  "h3_resolution": 9,
  "count": 6,
  "coverage": [
    {
      "network": "AT&T",
      "network_slug": "att",
      "technology": "4G LTE",
      "rsrp_dbm": -102.5,
      "signal_level": "Fair"
    },
    ...
  ]
}
Show full response
{
  "lat": 40.758,
  "lng": -73.985,
  "h3_hex": "892a100d67bffff",
  "h3_resolution": 9,
  "count": 6,
  "coverage": [
    {
      "network": "AT&T",
      "network_slug": "att",
      "technology": "4G LTE",
      "rsrp_dbm": -102.5,
      "signal_level": "Fair"
    },
    {
      "network": "AT&T",
      "network_slug": "att",
      "technology": "5G NR",
      "rsrp_dbm": -102.5,
      "signal_level": "Fair"
    },
    {
      "network": "T-Mobile",
      "network_slug": "t-mobile",
      "technology": "4G LTE",
      "rsrp_dbm": -91.8,
      "signal_level": "Good"
    },
    {
      "network": "T-Mobile",
      "network_slug": "t-mobile",
      "technology": "5G NR",
      "rsrp_dbm": -88.8,
      "signal_level": "Strong"
    },
    {
      "network": "Verizon",
      "network_slug": "verizon",
      "technology": "4G LTE",
      "rsrp_dbm": -106.1,
      "signal_level": "Fair"
    },
    {
      "network": "Verizon",
      "network_slug": "verizon",
      "technology": "5G NR",
      "rsrp_dbm": -106.1,
      "signal_level": "Fair"
    }
  ]
}

A note on precision: results describe the H3 grid cell containing the coordinates (that's h3_hex), not an exact address.

Pricing

PlanRequests per monthPrice
Demo 250 (max 25/day) Free Get a free key
Starter 1,000 $20/mo
Growth 10,000 $100/mo
Scale 100,000 $500/mo
Custom Heavy or specialized use Let's talk

Persistent storage, including for CRM and list enrichment, is not permitted under the default terms and pricing. For inquiries about pricing under more permissive terms, please reach out with details about your use case.

Only successful requests count toward your quota. Hitting your limit returns 429 responses until the month resets. No surprise overage charges, ever. Usage alert emails go out at 80% and 100%.

Try It Free

Want to kick the tires first? Get a free demo key by email and 250 requests/month (capped at 25/day). No card required.

Managing Your Subscription

Billing is handled by Stripe. To update your card, change plans, view invoices, or cancel, use the billing portal (sign in with your subscription email), or just write to and it'll get sorted out.

Standard Terms

The short version:

See the Terms of Service for more details.

Persistent storage and CRM/list enrichment aren't covered by standard plans. Feel free to get in touch about more permissive terms under alternative price structures.