H1 transfer processing time

[goodyearahead]

Please....can someone tell under what category given below....should I be looking for knowing the approximate processing time of H1 transfer...

I-129 Change of status in the U.S or
I-129 Extension of stay in the U.S

and I believe the INS center would be based on the place of your project or place of your employer?

Inputs are appreciated.

Thanks,
goodyearahead

 

[jaxen]

Place of your employer will determine INS center.