| Business | Phone |
| 24 Hour Transit Info Express 100 16th St, San Diego 92101 | (619) 685-4900 |
| American Transit Corp 3131 Camino Del Rio N, San Diego 92108 | (619) 624-9274 |
| San Diego Trolley Inc 1255 Imperial Ave # 900, San Diego 92101 | (619) 595-4949 |
| Regional Transit Telephone 100 16th St, San Diego 92101 | (619) 233-3004 |