Inside Infrastructure > Network : Network list and ID include VNI and VLANs for the segment. VNI will help with network overlays and identifying there locations. VLANs would be a nice to have.
Current example, (VCF) VMware Cloud Foundation using 10 clusters. When adding a new cloud with the all option, there were 10 different segment. It was impossible to determine which segment belonged to which cluster. Looking through NSX UI it was not able to be determined.