| Telephone Prefix | Phone Type | City |
|---|---|---|
| 878-201 | Landline | Honolulu |
| 878-202 | Landline | Champaign |
| 878-203 | Landline | Topeka |
| 878-204 | Landline | Newark |
| 878-218 | Landline | Racine |
| 878-222 | Landline | Santa Ana |
| 878-228 | Landline | Grand Island |
| 878-258 | Landline | Mesa |
| 878-266 | Landline | Saint Petersburg |
| 878-271 | Landline | New Haven |
| 878-295 | Wireless | Chico |
| 878-302 | Landline | Seattle |
| 878-313 | Landline | Springfield |
| 878-332 | Landline | Duluth |
| 878-333 | Landline | Chicago |
| 878-422 | Landline | Flint |
| 878-444 | Landline | Oakland |
| 878-668 | Landline | Vancouver |
| 878-777 | Landline | Spokane |
| 878-999 | Landline | Grand Rapids |