| Word | Digits in Telephone Number |
|---|---|
| Fiberboards | 342 372-6273 (7) |
| Fiberoptics | 342 376-7842 (7) |
| Fiberscopes | 342 377-2673 (7) |
| Fibreboards | 342 732-6273 (7) |
| Fibreoptics | 342 736-7842 (7) |
| Fibrillated | 342 745-5283 (3) |
| Fibrillates | 342 745-5283 (7) |
| Fibrination | 342 746-2846 (6) |
| Fibrinogens | 342 746-6436 (7) |
| Fibriphobia | 342 747-4624 (2) |
| Fibroblasts | 342 762-5278 (7) |
| Fibrocystic | 342 762-9784 (2) |
| Fibromatous | 342 766-2868 (7) |
| Fibronectin | 342 766-3284 (6) |