Post Offices in Allentown, Pennsylvania, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Wescosville Post Office No Reviews Favorite Fax: (610) 395-2356Phone: (610) 395-5161Retail Hours Allentown Post Office No Reviews Favorite Fax: (610) 821-5963Phone: (610) 821-8450Retail Hours Allentown Airport Post Office No Reviews Favorite Fax: (610) 266-5410Phone: (610) 266-5280Retail Hours Bethlehem Airport Post Office No Reviews Favorite Fax: (610) 266-3166Phone: (610) 266-3162Retail Hours