| Count | Prefix |
|---|---|
| 28 | 42- |
| 24 | 42. |
| 546 | 420 |
| 47 | 421 |
| 43 | 422 |
| 26 | 423 |
| 42 | 424 |
| 38 | 425 |
| 34 | 426 |
| 40 | 427 |
| 36 | 428 |
| 21 | 429 |
| 26 | 42a |
| 29 | 42b |
| 36 | 42c |
| 39 | 42d |
| 16 | 42e |
| 30 | 42f |
| 16 | 42g |
| 15 | 42h |
| 23 | 42i |
| 5 | 42j |
| 12 | 42k |
| 32 | 42l |
| 39 | 42m |
| 69 | 42n |
| 13 | 42o |
| 26 | 42p |
| 8 | 42q |
| 19 | 42r |
| 46 | 42s |
| 26 | 42t |
| 13 | 42u |
| 12 | 42v |
| 18 | 42w |
| 5 | 42x |
| 3 | 42y |
| 5 | 42z |