| Unknown | 336-537-0xxx | Unknown |
| Unknown | 336-537-1xxx | Unknown |
| Unknown | 336-537-2xxx | Unknown |
| Unknown | 336-537-3xxx | Unknown |
| Unknown | 336-537-4xxx | Unknown |
| Unknown | 336-537-5xxx | Unknown |
| Unknown | 336-537-6xxx | Unknown |
| Unknown | 336-537-7xxx | Unknown |
| Unknown | 336-537-8xxx | Unknown |
| Unknown | 336-537-9xxx | Unknown |