The Afaka script is not yet in Unicode. The script has a tentative allocation at U+16C80..U+16CCF in the  Roadmap to the SMP for the Unicode Standard.

A number of proposals for its inclusion have been submitted to the Unicode Technical Committee and WG2:

2010-12-21 Preliminary proposal for encoding the Afaka script in the SMP of the UCS — Michael Everson ( WG2 N3972,  L2/10-476)

2011-09-09 Proposal for encoding the Afaka script in the SMP of the UCS — Michael Everson ( WG2 N4132,  L2/11-297)

2012-07-17 Revised proposal for encoding the Afaka script in the SMP of the UCS — Michael Everson  WG2 N4292,  L2/12-228)