As per INAR's r/s today, it takes 20 days for the D to drop, and for the new symbol to become effective again. Not sure if it's the same with a symbol change, but good chances are...
InternetArray, Inc. (PINKSHEETS: INAR) today received regulatory approval for the Company's 1-for-2500 reverse stock split, which will become effective at 12:01 a.m. Eastern Time on Monday March 14, 2011. The current stock ticker symbol, INAR, is expected to be appended with a "D" to indicate the completion of the reverse split. After a 20-day period, it will revert from INARD to INAR.