On PackageRadar website «Arrived at customs» status means these statuses of Cyprus Post:
Tracking package of Cyprus Post
With the use of our tracking form you can easily check the status of your package. Also if you want to tracking Cyprus Post and get your package location updates to your e-mail, you can Register on our website.
Cyprus Post — is not the only postal service that you can track at PackageRadar. See full list of postal services available.