Now that I have a full keyboard and some saved links to call up...
Tranch 0 is 28 satellites, 20 Transport and 8 Tracking.
[URL unfurl="true"]https://www.sda.mil/wp-content/uploads/2023/04/Tranche-0-Fact-Sheet_FINAL.pdf[/URL]
Tranch 1:
"SDA plans to field the first operational generation of the PWSA, Tranche 1, beginning in late 2024. Tranche 1 will include 126 Transport Layer satellites, 35 Tracking satellites, and 12 tactical demonstration satellites (called T1DES). "
[URL unfurl="true"]https://www.spaceforce.mil/News/Article/3349198/space-development-agency-successfully-launches-tranche-0-satellites/[/URL]
So far I have only identified contracts for the tracking layer for Tranche 2, so perhaps there are no Transport layer satellites yet assigned to that generation. Tranche 1 does appear to have separate tracking and transport satellites, and I believe there are different models of Transport satellite as well - Alph, Beta, and Gama (UHF, Link 16/L band, UHF). But I'm still sorting out when different models/frequencies of transport satellite are being sent up; there seems to be little documentation that describes the system in total. Each article I've looked at seems to only mention what is in a particular launch, or a particular contractor, or sometimes a particular tranche. Any information you can link would be appreciated.