You provide no timeframe. Your quesiton, thus, is hard to answer.
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Don't waste your time getting obsessed with all those minor details that are really irrelevant to the merits of your case. Those number changes you are noticing can simply be due to the National Benefits Center (lock box) where you mailed your AOS applications having already transferred your case to the USCIS district office having jurisdiction over your place of residence and where you and your spouse will have to appear for your interviews. :You could have also been already assigned your "A" ("alien") number which will forever remain with you. Note that your employment authorization card (on the I-765 Form) will generate a totally different "A" number from the one you'll ultimately end up with on your green card.
Kindly be advised that the answer above is only general in nature cannot be construed as legal advice, given that not enough facts are known. It is your responsibility to retain a lawyer to analyze the facts specific to your particular situation in order to give you specific advice. Specific answers will require cognizance of all pertinent facts about your case. Any answers offered on Avvo are of a general nature only, and are not meant to create an attorney-client relationship.Ask a similar question
Every case is different. If you want to check the status of your case you should only use your own case numbers. After the biometrics appointment it usually takes 2 months to receive the employment card and then the interview notice.Ask a similar question
You should only use your number to check the status of your case. The other numbers are not really yours.
This answer is for informational purposes only and should not be construed as legal advice.Ask a similar question