I'd like to ask regarding Transfer IRP registration online.
You can apply to transfer an IRP registration online through the New York State One Stop Credentialing and Registration system OSCAR. For more information go to https://www.oscar.ny.gov/OSCR/OSCRCarrierHome. How does it work online?
and can it be done over the phone?
You cannot transfer an IRP record over the phone. You can call the IRB with questions at 1 - 518 - 473 - 5834.