| Word | Digits in Telephone Number |
|---|---|
| Oligarchical | 654 427-2442 (25) |
| Oligochaetes | 654 462-4238 (37) |
| Oligodactyly | 654 463-2289 (59) |
| Oligodendria | 654 463-3637 (42) |
| Oligophagies | 654 467-4244 (37) |
| Oligophagous | 654 467-4246 (87) |
| Oligopsonies | 654 467-7664 (37) |
| Oligospermia | 654 467-7376 (42) |
| Oligotrophic | 654 468-7674 (42) |