Live Chat I-680 CA Community Nearby Traffic I 680 exit 21b a 2024-05-14 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to I-680 Exit 21b A Pleasanton, CA 7.30 Fremont, CA 9.68 Hayward, CA 10.19 Interstate highway exits close to I-680 Exit 21b A Exit 21b a, i680ca 1.18 Exit 20, i680ca 2.18 Exit 19, i680ca 4.07 Interstate highways close to I-680 Exit 21b A i680ca map 1.18 i580ca map 11.99 i880ca map 12.17 State roads close to I-680 Exit 21b A CA 84 map 0.12 CA 238 map 6.94 CA 262 map 11.45