When is an Alien Number assigned?

[mgsctravels 24]

Does anyone have definitive knowledge of when an A-Number is assigned when applying for CR-1 via Consular Processing? 

 

I ask because I had an I-130 petition filed abroad which was approved, then it was sent to NVC before we withdrew the petition. We were part way through filing the DS-260, etc. We never scheduled/nor attended an interview at the consulate.

 

I want to know if an Alien Number would have been assigned at any point, either at USCIS with the I-130 approval, or at the NVC before we withdrew. 

 

I know with the I-140, the A-Number is issued upon approval, but none of my I-797s have an A-Number listed. A FOIA didn't yield any information other than the form I-130 we submitted, which had no information or reference to an A-Number written on it. 

[Mike E 11,739]

USCIS assigned the A number during the  I-130 process

[pushbrk 12,883]

2 hours ago, Mike E said:

USCIS assigned the A number during the  I-130 process

Correct, but if the "unknown" when petitioning, just enter all zeros and move on.  It's a non-issue.