Below are all the U-boats that successfully made it to the Mediterranean.
U-73 U-74 U-75 U-77 U-79 U-81 U-83 U-95 U-97
U-133 U-205 U-223 U-224 U-230 U-259 U-301 U-303 U-331
U-343 U-371 U-372 U-374 U-375 U-380 U-407 U-409 U-410
U-414 U-421 U-431 U-433 U-443 U-450 U-453 U-455 U-458
U-466 U-471 U-557 U-559 U-561 U-562 U-565 U-568 U-573
U-577 U-586 U-593 U-595 U-596 U-602 U-605 U-616 U-617
U-642 U-652 U-660 U-755 U-952 U-960 U-967 U-969
All the U-boats operating in the Mediterrean were type VIIC except for U-73, U-74, U-75 and U-83 which were all of type VIIB.
U-573 was interned in Spain (Cartagena). Later became the Spanish submarine G 7.