An iPhone or iPad: lockdownd, the service behind pairing, sync, and backup.
lockdownd is the iOS service that brokers every other device service — backup, installation, diagnostics, screenshots — and it is reachable on TCP 62078, over USB through usbmuxd and over Wi-Fi when Wi-Fi sync is enabled. It is the single most reliable way to identify an iOS device on a network scan, since it is a fixed port in the dynamic range that Apple never registered with IANA. Tools like libimobiledevice (idevicepair, idevicebackup2) talk to exactly this port.
Do not expose
Anything that reaches lockdownd can attempt to pair with the device, and a valid pairing record grants broad access to its data — this should never leave the local link, let alone the LAN.
$ nc -vz -w 3 IPHONE_IP 62078Seen this on your network? Beige Box scans your Wi-Fi and shows every open port on every device — and its Ports tool links straight back here.
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Corrections or a missing port? Reply @rimrocksystems.