| Word | Digits in Telephone Number |
|---|---|
| Dumbfounders | 386 236-8633 (77) |
| Dumbfounding | 386 236-8634 (64) |
| Dumortierite | 386 678-4374 (83) |
| Dunderheaded | 386 337-4323 (33) |
| Duodecillion | 386 332-4554 (66) |
| Duplicatable | 387 542-2822 (53) |
| Duplications | 387 542-2846 (67) |
| Durabilities | 387 224-5484 (37) |