Around 520 Japanese had registered territories disputed with neighboring countries as their official domicile as of the end of January, according to a survey of municipalities.
More have registered disputed islands as their official places of residence, apparently due to frustration over the government's inability to resolve territorial disputes and anger at China's and Russia's hardline stances following recent incidents.
Japanese citizens are allowed to register any place claimed by Japan as their official addresses as long as the location has a land number allocated by authorities.