Here is the Notam about that Mike
A0246/07 - ALL HIGH ALTITUDE AIRCRAFT NORTHBOUND ON R628, UR628, L341, UL341, G430, UG430, UL780, A301, UA310, ,UL795, B760, UB760, UL210: CALL MIAMI ARTCC PRIOR TO THE MIAMI CTA/FIR ON VHF 126.325 OR UHF 257.200. IF UNABLE TO CONTACT MIAMI ARTCC. CALL NEW YORK ARINC PRIOR TO THE MIAMI CTA/FIR ON THE FOLLOWING FREQUENCIES: VHF - 130.7, HF (DAY) - 8918, 11396, HF (NIGHT) - 6586, 5550. WIE UNTIL UFN
I sent it to Daryl, because I did not hear from you, and know that you were on vacation. I will send the High and some what complete low sector map with freqs that I sent to daryl. ZMA64 is using 126.525 followed by ZMA 40 for flights going over to Jamaica/Cuba via URSUS to UCA will use 126.325 10 mins before Havana Airspace