Please help on AC21 - for NSC

[hr0803]

Does anyone know the correct address with P.O. Box no and zip code for the Nebraska service center to apply for AC21?

I need the address of NSC for the Cover Letter and the "Acting Center Director" name for the Employment Verification Letter.

I was not able to obtain from USCIS site especially for AC21. I see different P.O. Box and Zip for all the forms but no mention of AC21.

Do we have to mail all the letters and the copies of the documents directly to this NSC address? and no need to involve any attorney?

Please help.

 

[hr0803]

I tried to call USCIS number and spoke with a customer service rep.
The first rep did not even know what is AC21 or change of job etc. then the first rep transfered to another immigration officer and he did not know the address or any info either, but the second rep was able to understand about the change of job. So he said he wud transfer to another immigration office who knows the address to which i can send AC21 letters. But I had to wait for almost 15 minutes and hung up.

Please somebody who sent their AC21 letters/docs to NSC please let me know the correct address with PO box no and zip code.

appreciate your help.