Business code 485300 is Taxi, limousine, & ridesharing service while business code 492000 is couriers and messengers.
If you can easily separate your expenses, you can report two Schedule C's, (and report the earnings separately as well). If you work the two services simultaneously, and since they both so closely resemble one-another, you can use the code that represents the majority of your work and add the other expenses and earnings to this one Schedule C.