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Thanks for your amazing work! Quick Que: How do you differentiate lock box vs service center case numbers? For eg, how do you know LINXXX is from LIN_LB or from LIN_SC?  I don't see any specific information on the case detail page too between LB and SC. I'm just curious to know.
Also, do you crawl new case numbers added on daily basis by USCIS?  

Check out the following link. it explains the difference in case numbers between the lockbox and service center.
https://redbus2us.com/visas/usa/uscis/receipt-number-format/

Theoretically, the crawler will capture the new cases automatically. But there may be various exceptions that cause a few small chunks of data missing.