| Arecibo to Castelletto sopra Ticino | 4,615.96 mi (7,428.68 km) |
| Arecibo to Castelli Calepio | 4,677.36 mi (7,527.48 km) |
| Arecibo to Castelnovo ne' Monti | 4,708.08 mi (7,576.93 km) |
| Arecibo to Castelnuovo Berardenga | 4,769.91 mi (7,676.42 km) |
| Arecibo to Castelnuovo di Porto | 4,829.65 mi (7,772.58 km) |
| Arecibo to Castelnuovo di Verona | 4,720.23 mi (7,596.48 km) |
| Arecibo to Castelnuovo Rangone | 4,733.57 mi (7,617.94 km) |
| Arecibo to Castelvetrano | 4,887.68 mi (7,865.95 km) |
| Arecibo to Castelvetro di Modena | 4,734.70 mi (7,619.76 km) |
| Arecibo to Castenaso | 4,760.18 mi (7,660.77 km) |
| Arecibo to Castenedolo | 4,697.32 mi (7,559.60 km) |
| Arecibo to Castiglion Fiorentino | 4,790.64 mi (7,709.79 km) |
| Arecibo to Castiglione del Lago | 4,798.66 mi (7,722.69 km) |
| Arecibo to Castiglione delle Stiviere | 4,707.52 mi (7,576.02 km) |
| Arecibo to Castrolibero | 5,050.60 mi (8,128.16 km) |
