Houston City Area Code List
| Area Codes | Country | State | City | Time Zone | Operating |
|---|---|---|---|---|---|
| 250 | Canada | British Columbia | Houston | Pacific | Details |
| 281 | US | Texas - TX | Houston | Central | Details |
| 346 | United States | Texas | Houston | Central | Details |
| 417 | US | Missouri - MO | Houston | Central | Details |
| 507 | US | Minnesota - MN | Houston | Central | Details |
| 662 | US | Mississippi - MS | Houston | Central | Details |
| 713 | US | Texas - TX | Houston | Central | Details |
| 778 | Canada | British Columbia | Houston | Pacific | Details |
| 832 | US | Texas - TX | Houston | Central | Details |
| 907 | US | Alaska - AK | Houston | (UTC-9) | Details |