Businesses of all sizes are eligible for an Optimum Mobile business account. We use your federal tax identification number (TIN) to confirm your business’ identity and verify its credit history.
- If you are not a sole proprietor, this is your nine-digit Employer Identification Number (EIN).
- If you are a sole proprietor, this is your nine-digit Social Security Number (SSN).
You will also need to provide a business address, business phone number (landline), and a business website.