How too ping my girlfriends iphone

Hello Bigdogdaddy01,

If you're looking to help them find a lost device, and they opted in to sharing their location when in a Family Sharing group, then this page can help out: Share your location with your family

Help find a missing device

If you turned on Find My for your device and you share your location with your Family Sharing group, your family can help you locate your device if it goes missing. Family members can:

•See the location and online or offline status of your device.

•Play a sound on your missing device to help you find it.

•Put your device in Lost Mode if it was already set up with a passcode.

•Remotely erase a device.

Learn more about how to use the Find My app

If you don't share your location, family members can’t access location information about your device. However, family members can still help you. They can check your missing device's online or offline status, play a sound on the device, put the device in Lost Mode, or remotely erase the device.

If they're not in your Family Sharing group and/or aren't opted in to sharing their location, then this page can help them find their device: If your iPhone, iPad, or iPod touch is lost or stolen

Cheers.