# AT&T Coverage in Columbia, MD 21045

Excellent — AT&T has dense, multi-band coverage in Columbia, MD 21045.

## Summary

- **Carrier**: AT&T (on the AT&T network)
- **Location**: Columbia, MD 21045
- **Verdict**: EXCELLENT (excellent)
- **Towers on network**: 335
- **Best signal (dBm)**: -39.6
- **Nearest tower**: 0.21 mi
- **Low-band sites**: 1
- **Mid-band sites**: 334
- **High-band sites**: 0

## Coordinates

- **Latitude**: 39.20622
- **Longitude**: -76.82747

## Competitor Networks at This Location

- **Verizon** (Verizon): 234 towers, verdict STRONG (strong), best -41.0 dBm
- **T-Mobile** (T-Mobile): 601 towers, verdict EXCELLENT (excellent), best -41.9 dBm

## Related Links

- **View on Map**: https://www.celltowermaps.com/coverage/att/near/zip-code/21045
- **All carriers at this zip**: https://www.celltowermaps.com/cell-towers/near/zip-code/21045

## Data Source

Tower data sourced from FCC licensing records and OpenCellID. For more information, visit https://www.celltowermaps.com/llms.txt