Tracking Syncthing with Little Snitch

Hello, I am using Snycthing on my MacOS Big Sur to sync internal computers only. I just reinstalled Little Snitch and I noticed that Snycthing is reaching out to domains and IPs all over the world. Some of the domains are aebc[dot]com, sipgate[dot]com, callwithus[dot]com, and xten[dot]com.

Can anyone help me understand why this is happening? I am attempting to learn something new by playing with Little Snitch.

Thank you.

Most of these are relays:

Sipgate is a VOIP provider which may be related to syncthings STUN feature.

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