I know there are a few others out there doing something similar because I learned about it from someone else . . . I've been looking through the cases getting assigned WAC# etc on Case Status Online and had sort of assumed they worked regular 8-4 or 9-5 hours but cases were being assigned WAC# etc over the long weekend and this morning (as of 7:00 a.m. Eastern), there's already been some "On February 16 we [received/accepted/rejected/approved] your form [insert type]."
I'm wondering if anyone else knows about the way/hours they work. Are these from cases that have been entered earlier and then there's autogeneration in the system that just happens around the clock or are they now working extra long hours to clear the backlog? I can't imagine that's the case and yet, from the time they seemed to stop on Friday to last night I counted over 400 notices. These all had the 21900 "prefix" and I'm only looking at WAC. And, to be clear, these are not all I-129Fs.
I'm looking mostly because I'm a bit of a data geek I still have a long wait for my NOA1 and am curious about the data. For example, did you know that the Philippines accounts for ~20% of all K-1 visas and that 100% of visas issued are used (no surprise)!
I was also looking at the annual report for FY 2020 and saw that in each quarter there were about ~18k pending I-129F applications. The Fiscal Year ended on September 30 with nearly 39k received and 28.5k approved and 21k pending. If there were 21k pending on Sept 30 and Q1 (Oct to Dec 2020) received an additional ~10k . . . well. There is math. They'd have to be processing 350 a day to get through 21k in 60 days and that pile keeps getting added to.
*If you're interested in how to search, check out the November 2020 thread which is how I learned about it.