| Word | Digits in Telephone Number |
|---|---|
| Coscripted | 267 274-7833 |
| Cosinesses | 267 463-7737 |
| Cosmetical | 267 638-4225 |
| Cosmically | 267 642-2559 |
| Cosmogenic | 267 664-3642 |
| Cosmogonic | 267 664-6642 |
| Cosmolatry | 267 665-2879 |
| Cosmologic | 267 665-6442 |
| Cosmonauts | 267 666-2887 |
| Cosmopolis | 267 667-6547 |
| Cosponsors | 267 766-7677 |
| Costarring | 267 827-7464 |
| Costlessly | 267 853-7759 |
| Costliness | 267 854-6377 |
| Costmaries | 267 862-7437 |
| Costumiers | 267 886-4377 |
| Costusroot | 267 887-7668 |