Non-personally identifiable information (non-PII) is data that cannot be used on its own to trace, or identify a person.Examples of non-PII include, but are not limited to:

• Aggregated statistics on the use of product / service
• Partially or fully masked IP addresses

Here you’ll find the full comparison of personally identifiable information, non-personally identifiable information and personal data: What is PII, non-PII, and personal data? [UPDATED]