
CBP One, launched in October 2020, is a mobile application available in Apple and Google Play stores that serves as a single portal to a variety of CBP services for migrants, including submitting information in advance and scheduling an appointment to present themselves at one of the eight ports of entry.
In the state of Arizona, there is the Nogales' port. In Texas, the ports are Brownsville, Eagle Pass, Hidalgo, Laredo, and El Paso. In California, the ports are Calexico and San Ysidro.