Which Centre H4-EAD application to send if once H1/H4 application is still pending

USA H4-EAD
1

Hi
My current H1 and H4 extension is in process in Nebraska centre.
I would like to apply H4-EAD but the last stage was confusing where to send application? is it to Nebraska centre or to Texas centre

2

Service center decision is based on H1B application receipt number.

See the address here: