12 groups of order 1688.
| SmallGroups | group |
|---|---|
| (1688, 1) | C8×C211 #13133006 |
| (1688, 2) | C2×C4×C211 #13133007 |
| (1688, 3) | D4×C211 #13133008 |
| (1688, 4) | Q8×C211 #13133009 |
| (1688, 5) | C23×C211 #13133010 |
| (1688, 6) | C211⋊C8 #13133011 |
| (1688, 7) | C4×D211 #13133012 |
| (1688, 8) | C2×Dic211 #13133013 |
| (1688, 9) | C22⋊D211 #13133014 |
| (1688, 10) | D844 #13133015 |
| (1688, 11) | Dic422 #13133016 |
| (1688, 12) | C22×D211 #13133017 |