| Port Code | Port Name | Country |
| USWFT | Warrenton | United States |
| USWFW | Wheatland | United States |
| USWFX | Waverly | United States |
| USWFY | Waverly | United States |
| USWFZ | Winchester | United States |
| USWGE | Wagoner | United States |
| USWGG | Wiggins | United States |
| USWGH | Worthington | United States |
| USWGL | Wheatland | United States |
| USWGM | West Groton | United States |
| USWGN | Wellington | United States |
| USWGO | Winchester | United States |
| USWGP | Wyomissing | United States |
| USWGQ | Weyers Cave | United States |
| USWGR | Walnut Grove | United States |
| USWGS | Waynesboro | United States |
| USWGT | Washington | United States |
| USWGW | Wagontown | United States |
| USWGY | Williamsburg/Brooklyn/New York | United States |
| USWGZ | Wrightstown | United States |
| USWHA | West Hazleton | United States |
| USWHB | White Bluff | United States |
| USWHC | West Haven | United States |
| USWHD | Hyder | United States |
| USWHE | Wheeling | United States |
| USWHF | West Hartford | United States |
| USWHG | Whiting | United States |
| USWHH | Warrensville Heights | United States |
| USWHI | Whippany | United States |
| USWHJ | Walhalla | United States |
| USWHK | Whitner | United States |
| USWHL | Whitlash | United States |
| USWHM | Windham | United States |
| USWHN | Whitehall | United States |
| USWHO | Whitestone/Queens/New York | United States |
| USWHP | Westhope | United States |
| USWHQ | West Helena | United States |
| USWHR | Whittier | United States |
| USWHS | Whitetail | United States |
| USWHT | Wharton | United States |
| USWHU | White House | United States |
| USWHV | Whitesville | United States |
| USWHW | Whitehall | United States |
| USWHX | Wheaton | United States |
| USWHY | Whitehall | United States |
| USWHZ | Ward Hill | United States |
| USWIA | Williams | United States |
| USWIB | Willow Brook | United States |
| USWIC | Wickliffe | United States |
| USWID | Windber | United States |
| USWIE | Winterport | United States |
| USWIF | Winfield | United States |
| USWIG | Winthrop | United States |
| USWIH | Willapa | United States |
| USWII | Wilder | United States |
| USWIJ | Wilder | United States |
| USWIK | Wilkins | United States |
| USWIL | Williston | United States |
| USWIM | Wilton | United States |
| USWIN | Winchester | United States |
| USWIO | Wilton | United States |
| USWIQ | Wilson | United States |
| USWIR | Willamette City | United States |
| USWIS | Williamson | United States |
| USWIT | Williston | United States |
| USWIU | Wimauma | United States |
| USWIV | Windsor | United States |
| USWIW | Willow Wood | United States |
| USWIX | Wixom | United States |
| USWIY | Wainscott | United States |
| USWIZ | Wissahickon | United States |
| USWJF | Lancaster | United States |
| USWJI | Whitlock | United States |
| USWJJ | Winnsboro | United States |
| USWJK | Wakefield | United States |
| USWJL | West Linn | United States |
| USWJN | Winsted | United States |
| USWJO | Westmont | United States |
| USWJP | Walton Hills | United States |
| USWJQ | Weehawken | United States |
| USWJR | Weimar | United States |
| USWJX | Wilsonville | United States |
| USWJY | Warm Springs | United States |
| USWJZ | Watts | United States |
| USWKA | Waseca | United States |
| USWKB | Wilkes Barre | United States |
| USWKD | Wakefield | United States |
| USWKE | Waukee | United States |
| USWKF | Wakefield | United States |
| USWKG | Watkins Glen | United States |
| USWKK | Aleknagik | United States |
| USWKL | Waikoloa | United States |
| USWKM | Wilkinsonville | United States |
| USWKN | Walkerton | United States |
| USWKO | Weslaco | United States |
| USWKR | Wake Forest | United States |
| USWKS | Weeks | United States |
| USWKT | Whitakers | United States |
| USWKV | Wilkesville | United States |
| USWKW | Waunakee | United States |