She used a few different names and made many calls, more than just the Sophia saga. Maryland came up more than once (otherwise I wouldn’t have made connections). She might reference it in her “coming clean” call; I’d have to check.
I was browsing YouTube, and found a compilation video called “The Miriam Tapes”. After listening to that, it sounds as if LL had more than one Miriam on their hands. This is what probably caused the confusion earlier in the thread.
Miriam, the Nina Miriam, called in on 2004-01-04, right around the 1:29:00 mark (of the mp3 file, not the actual show). Anderson cuts her off because he identified her as Miriam.