V7 code list is a new numbering system. If your Flipper is V7 (on the back) do not use prior code lists.
V7 and V8 currently doesn't work with Dish VIP222 and 722K with code entry. If you have an Dish IR remote we may be able to copy the code with Learning set up. V9 has a code, 3584.
The MOST Common code for Cable / SAT boxes is 3234. This is working Time Warner / Spectrum, Cisco, Technicolor, Arris and other boxes.
Other common codes:
STB:
Arris DSR600: 2344
Arris Vip 2262: 2744
Arris DCX 900: 2404
ATT: 3234, 3224
Bell Fibre (some are now Motorola): 2774
Cisco: 3234, 2544
Cisco ISB7000: 3224, 2544, 2744
Dish: 2944, 2294
Dish Wally: 2294
Direct TV: Genie Mini, 2674
Pace: 3224
Rogers Ignite TV 3084
Shaw Direct Arris DSR600: 2344
Spectrum: 3084, 3234
Samsung: 3234
Technicolor: 3234, 2544
Time Warner: 3234
Tivo Arris DCX 900: 2404
TV:
Dynex (see Insignia): 3961
RCA: 2601
Samsung: 3831
Sony: 3901