Hello zubi,
For Fiscal Year 2009 and region Africa (Except Egypt, Ethiopia, and Nigeria), the cut-off number 61XXX was current in August. It is a little late but the good news is that the USCIS tends to speed up all the DV cases as the end of the fiscal year approaches. Of course, all cases are different but many people got their green cards with late case numbers.
My suggest to you is that you double check everything and be sure that everything is alright in your AOS package, you don't want to delay your case because of a missing information. Please, check the 2008 and 2009 AOS Only forums, you'll find tons of information.
Good luck!
He stated it was for DV 2010 so he is way early.