How H4 EAD USCIS Service center is assigned?

USA H4-EAD
1

Hi Anil,

What basis the H4 EAD application assigned to the particular service center?
Is it random picked or any specific key values playing the role to assign the service center?

2

H4 EAD processing center is based on the H1B processing center.

You apply to the USCIS service center based on the H1B primary’s approved receipt number.

Once the application reaches USCIS, they can either process it same center or move to any other center based on their internal priorities. This information is not disclosed by USCIS.