From 20 November to 20 December 2015, the annual Activity Census was conducted inside the Antarctic Micronational Union, with the final results being as following (listed by date of confirming activity)
- Federal Republic of Lostisland
- Empire of Pavlov
- Grand Duchy of Westarctica
- Kingdom of Ruthenia
- Principality of Arkel
- Princedom of Aysellant
- Grand Duchy of Flandrensis
- Duchy of Campinia
- Soviet Socialist Republic of Nadiria
- Republic of Hortania
- Republic of Užupis
- Kingdom of Danland
- Noble Republic of Lurk
- Union of South London Soviet Socialist Republics