I'm looking for an archive of institutions that have participated in the Fed's FedWire service -- preferably back to before 2004.
The Fed hosts an up-to-date participants list, but I haven't been able to find an archive of it. Closest thing I've found is this Github repo that's been archiving a similar list of FedACH institutions for the past couple years.
Anyone got any ideas? I really hope this publicly available time-series hasn't just vanished from history.