I left VZ in 2022 but this is a good feature if you need a second number.
Verizon's Second Number is a service that allows customers to add a second phone number to their smartphone. The second number operates independently from the primary number, and can be used for specific purposes.
• Unlimited talk and text in the United States, Mexico, and Canada
• Data services are provided by the primary line
• Switching between lines for phone and messaging apps
• eSIM technology
• Separate identity for specific purposes, such as work or personal communications
• Create stronger boundaries around work
• Limit when colleagues can call you
• Avoid the hassle of carrying a separate phone
• Function as a "landline" number for utility companies, contractors, and more
• Reserve a number for family, close friends, or your child's school or caregivers
• Available to all new and existing Verizon consumer postpaid customers with a Dual SIM device
• Some devices may not be compatible with all features supported by the Verizon network