Hudson City Area Code List
| Area Codes | Country | State | City | Time Zone | Operating |
|---|---|---|---|---|---|
| 234 | US | Ohio - OH | Hudson | Eastern | Details |
| 303 | US | Colorado - CO | Hudson | Mountain | Details |
| 309 | US | Illinois - IL | Hudson | Central | Details |
| 319 | US | Iowa - IA | Hudson | Central | Details |
| 330 | US | Ohio - OH | Hudson | Eastern | Details |
| 450 | Canada | Quebec | Hudson | Eastern | Details |
| 517 | US | Michigan - MI | Hudson | Eastern | Details |
| 518 | US | New York - NY | Hudson | Eastern | Details |
| 605 | US | South Dakota - SD | Hudson | Central / Mountain | Details |
| 620 | US | Kansas - KS | Hudson | Central / Mountain | Details |
| 715 | US | Wisconsin - WI | Hudson | Central | Details |
| 720 | US | Colorado - CO | Hudson | Mountain | Details |
| 727 | US | Florida - FL | Hudson | Eastern | Details |
| 807 | Canada | Ontario | Hudson | Eastern / Central | Details |
| 936 | US | Texas - TX | Hudson | Central | Details |
| 978 | US | Massachusetts - MA | Hudson | Eastern | Details |