Okta environments where the IP Zones feature is enabled
When entering rules for a policy, such as sign-on policies and MFA policies, specify zone information from the selection. Choices for the location are Anywhere, In zone, and Not in zone.
After selecting In zone or Not in zone, the zone selection options appear. If you check All Zones, all of your defined zones are selected, and the Zones box below this option is no longer visible.
If you do not check All Zones, you can begin typing a zone name in the Zones box. A dropdown list appears that contains all existing zones that contain the text you entered anywhere in the zone name. You can choose any number of zones.