6422 Routes
- Cardinal Virginia -> Eagan Minnesota
- Cardington Ohio -> Kiln Mississippi
- Cardington Ohio -> Robley Virginia
- Cardova Virginia -> Pittsville Virginia
- Cardwell Missouri -> Alum Springs
- Cardwell Montana -> Gibson Idaho
- Cardwell Montana -> Miller Arkansas
- Cardwell Montana -> Sheffield Lake Ohio
- Carefree -> Akron Iowa
- Carefree -> Arthur Illinois
- Carefree -> Barton South Carolina
- Carefree -> Gilberton Pennsylvania
- Carefree -> Jacks Creek Tennesse
- Carefree Arizona -> Cagle Tennesse
- Carefree Arizona -> Putnam Alabama
- Carefree Arizona -> Spence Georgia
- Carencro Louisiana -> Kilbourne Louisiana
- Carey Idaho 83320 -> Fairfield Idaho 83327
- Carey Georgia -> Elmhurst Wisconsin
- Carey Georgia -> Walpole Massachusetts
- Carey Idaho -> Cardin Oklahoma
- Carey Ohio -> Cottage Grove Minnesota
- Carey Ohio -> Emlyn Kentucky
- Caribou California -> Fullerton California
- Caribou California -> Kensington California
- Caribou California -> Mammoth Lakes California
- Caribou California -> Montague Massachusetts
- Caribou Colorado -> Carterville Missouri
- Caribou Maine -> Berlin Nuevo Hampshire
- Caribou Maine -> Ethel
- Caribou Maine -> Eustis Maine
- Carico Kentucky -> Robinson Kansas
- Carico Kentucky -> Windom Minnesota
- Carl Folsom A/p Alabama -> Conococheague Maryland
- Carl Georgia -> Danville Kansas
- Carl Georgia -> Ranger Georgia
- Carl Junction Missouri -> Kellogg Illinois
- Carleton Michigan -> Rosspoint Kentucky
- Carleton Nebraska -> Micco Florida
- Carleton Nebraska -> Walcott Arkansas
- Carlile Wyoming -> Elmoville Illinois
- Carlile Wyoming -> Hartland North Dakota
- Carlin Nevada -> Hazelton Kansas
- Carlinville Illinois -> Carrsville Kentucky
- Carlisle -> Jarbalo Kansas
- Carlisle Arkansas -> Lancaster Missouri
- Carlisle Arkansas -> Molino Florida
- Carlisle Indiana -> Silver Falls Oregon
- Carlisle Iowa -> La Vista Georgia
- Carlisle Iowa -> Wicksville South Dakota
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