On April 9, the USCIS announced that it had received 42,000 cases, which means that they are only receiving 1,000 cap-subject cases per week. At this rate it could be 5-6 months before the H-1B cap is reached.
The Masters cap has received the full subscription of 20,000 petitions. USCIS continues to accept Masters cases since their experience is that not all accepted cases will be approvable.
TheUSCIS Cap Count page should update the cap numbers, although it doesn’t look like USCIS has started to update the page as of yet.