Naval Aviation Border Guard Service of Russia Serbian Air Force – one Sudanese Air Force – six as of December 2016; at least one has been used as an improvised bomber Syrian Air Force – two as of December 2016; one crashed Armed Forces of Transnistria Ukrainian Naval Aviation – two as of December 2016 Ukrainian Air Force – around 22 as of 2017 Uzbek Air Force – four as of December 2016 Yemen Air Force – six Former military operators Afghan Air Force – All remaining aircraft retired June 2011. One of their An-26 which defected to Pakistan, is preserved at PAF Museum, Karachi Bangladesh Air Force Benin Air Force – two Bulgarian Air Force – five used from 1984 until 2011 Royal Cambodian Air Force Congolese Air Force – one Czechoslovakian Air Force East German Air Force German Air Force Guinea-Bissau Air Force Hungarian Air Force – 11 delivered from 1974, last one retired June 2020. Iraqi Air Force Lithuanian Air Force – three operated Malagasy Air Force - two delivered in 1980 Malian Air Force - one Mongolian Air Defense Forces Command – four Niger Air Force – one, bought from Libya in 1997 Yemen Arab Republic Air Force - one Pakistani Air Force Peruvian Air Force – 22 operated from 1977 to 1993 Polish Air Force – 12 operated from 1972 to January 2009; retired Slovak Air Force – Two, retired in 2016, to be replaced by Alenia C-27J Spartan aircraft beginning in 2017. Somali Air Corps People's Democratic Republic of Yemen Air Force - three bought in 1979 Soviet Air Force – Passed on to successor states in 1991 Soviet Naval Aviation – Tanzanian Air Force – none; retired Military of Turkmenistan – ten United States Air Force – Operated 2003–2007 by the 6th Special Operations Squadron Vietnam People's Air Force Yugoslav Air Force – 14 Zambian Air Force and Air Defense Command – four Civil operators Genex (two) Air Bright (one) Sadelca (one) Servicio Aéreo del Vaupés SELVA (three) Aerogaviota (three) SAS Cargo Group (one) CityLine Hungary (four) RAF-Avia (five) Valan International Cargo Charter Aero Condor (one) Amazon Sky (two) ATSA (one) Cielos Andinos (two) Interisland Airlines Mosphil Aero Exin (six) Angara Airlines (three) Chukotavia (three) IrAero (ten) Khabarovsk Airlines (three) Kostroma Air Enterprise (four) KrasAvia (four) Polar Airlines (three) Badr Airlines (one) Tajik Air (one) Air Urga (ten) Antonov Airlines (former) ARP 410