What are the Military Intelligence numbers like MI6?

MI1 Codes and cyphers.

MI2 Middle and Far East, Scandinavia, USA, USSR, Central and South America.

MI3 Eastern Europe and the Baltic Provinces

MI4 Geographical section - maps

MI5 Liaison with Security Service, following the transfer of Security Service to the Home Office in the 1920s.

MI6 Secret Intelligence Service

MI7 Press and Propaganda

MI8 Signals interception and communications security.

MI9 Escaped British PoW debriefing, escape and evasion

MI10 Technical Intelligence worldwide.

MI11 Military Security.

MI12 Liaison with censorship organisations in Ministry of Information, military censorship.

MI13 Not used (except in fiction).

MI14 Germany and German-occupied territories (aerial Photography until Spring 1943).

MI15 Aerial photography/Air defence intelligence.

MI16 Scientific Intelligence

MI17 Secretariat for Director of Military Intelligence from April 1943.

MI18 Not used.

MI19 Enemy PoW interrogation