# AT&T Coverage in Dupo, IL 62239

Evidence suggests usable AT&T coverage in Dupo, IL 62239.

## Summary

- **Carrier**: AT&T (on the AT&T network)
- **Location**: Dupo, IL 62239
- **Verdict**: GOOD (good)
- **Towers on network**: 61
- **Best signal (dBm)**: -49.5
- **Nearest tower**: 0.66 mi
- **Low-band sites**: 0
- **Mid-band sites**: 61
- **High-band sites**: 0

## Coordinates

- **Latitude**: 38.528
- **Longitude**: -90.1803

## Competitor Networks at This Location

- **T-Mobile** (T-Mobile): 49 towers, verdict STRONG (strong), best -50.4 dBm

## AT&T Coverage in Nearby Cities

- [Lovejoy, IL](/coverage/att/near/city-state/lovejoy/il) — 174 towers
- [Venice, IL](/coverage/att/near/city-state/venice/il) — 155 towers
- [East Saint Louis, IL](/coverage/att/near/city-state/east-saint-louis/il) — 138 towers
- [Madison, IL](/coverage/att/near/city-state/madison/il) — 124 towers
- [Bridgeton, MO](/coverage/att/near/city-state/bridgeton/mo) — 120 towers
- [Earth City, MO](/coverage/att/near/city-state/earth-city/mo) — 117 towers

## Related Links

- [View the interactive carrier map](https://www.celltowermaps.com/coverage/att/near/zip-code/62239): Human-readable map for this carrier and ZIP code.
- [All carriers near this ZIP code](https://www.celltowermaps.com/cell-towers/near/zip-code/62239/index.md): Text-first tower summary without a carrier filter.

## Data Source

Tower data is sourced from U.S. Federal Communications Commission licensing records and OpenCellID observations. See [llms.txt](https://www.celltowermaps.com/llms.txt) for methodology and access guidance.