| extension | φ:Q→Aut N | d | ρ | Label | ID |
|---|
| C2.1(C23×C4) = C22×C22⋊C4 | central stem extension (φ=1) | 32 | | C2.1(C2^3xC4) | 64,193 |
| C2.2(C23×C4) = C22×C4⋊C4 | central stem extension (φ=1) | 64 | | C2.2(C2^3xC4) | 64,194 |
| C2.3(C23×C4) = C2×C42⋊C2 | central stem extension (φ=1) | 32 | | C2.3(C2^3xC4) | 64,195 |
| C2.4(C23×C4) = C2×C4×D4 | central stem extension (φ=1) | 32 | | C2.4(C2^3xC4) | 64,196 |
| C2.5(C23×C4) = C2×C4×Q8 | central stem extension (φ=1) | 64 | | C2.5(C2^3xC4) | 64,197 |
| C2.6(C23×C4) = C4×C4○D4 | central stem extension (φ=1) | 32 | | C2.6(C2^3xC4) | 64,198 |
| C2.7(C23×C4) = C22.11C24 | central stem extension (φ=1) | 16 | | C2.7(C2^3xC4) | 64,199 |
| C2.8(C23×C4) = C23.32C23 | central stem extension (φ=1) | 32 | | C2.8(C2^3xC4) | 64,200 |
| C2.9(C23×C4) = C23.33C23 | central stem extension (φ=1) | 32 | | C2.9(C2^3xC4) | 64,201 |
| C2.10(C23×C4) = C22×M4(2) | central stem extension (φ=1) | 32 | | C2.10(C2^3xC4) | 64,247 |
| C2.11(C23×C4) = C2×C8○D4 | central stem extension (φ=1) | 32 | | C2.11(C2^3xC4) | 64,248 |
| C2.12(C23×C4) = Q8○M4(2) | central stem extension (φ=1) | 16 | 4 | C2.12(C2^3xC4) | 64,249 |