The stock of AST SpaceMobile (ASTS 8.05%) popped again on Wednesday, after the satellite communications company announced on Tuesday that it has updated its filings with the International Telecommunication Union (ITU) for its V-band application with the Federal Communications Commission (FCC). Through 11:30 a.m. ET today, AST SpaceMobile stock was up 11.3%.What AST SpaceMobile is doingAST says it has "agreements and understandings" with more than 40 mobile network operators around the world, but the company ...