I’d be happy to help!
According to Apple’s official website, yes, you can host a birthday party for children at the Apple Park Visitor Center. It’s an interactive exhibit designed specifically for kids and is located in Cupertino, California.
As for consulting phone numbers, I found that the visitor center offers guided tours on Weekdays: 9am-5pm and Saturday-Sunday: 10am-6pm (except for holidays). You can reach them at +1(408) 969-8822 or send an email through their official website.
However, please note that availability may change depending on the time of year and other factors. It’s always a good idea to call ahead or check with Apple directly before planning your party.
Hope this helps!