• 5 min read • Updated 2026

How to Track Instagram Username Changes

People change their Instagram handles frequently—whether rebranding a business or personal account. When someone changes their username, simple text-matching tools falsely report that the old account "unfollowed" you and a new account "followed" you.

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Immutable Numeric User IDs (PK)

Every Instagram user account is assigned an immutable numeric primary key (e.g. 75074368324) upon creation. While usernames change, this numeric ID never changes.

How FolScan Tracks Username Changes

When comparing two scans, FolScan indexes records by primary key:

One scan shows today's relationships. Future Premium scans show what changed.