Passage: Including Sevastopol and the Autonomous Republic of Crimea that were annexed by the Russian Federation in 2014, Ukraine consists of 27 regions: twenty-four oblasts (provinces), one autonomous republic (Autonomous Republic of Crimea), and two cities of special status – Kiev, the capital, and Sevastopol. The 24 oblasts and Crimea are subdivided into 490 raions (districts) and city municipalities of regional significance, or second-level administrative units. The average area of a Ukrainian raion is 1,200 square kilometres (460 sq mi); the average population of a raion is 52,000 people.Populated places in Ukraine are split into two categories: urban and rural. Urban populated places are split further into cities and urban-type settlements (a Soviet administrative invention), while rural populated places consist of villages and settlements (a generally used term). All cities have certain degree of self-rule depending on their significance such as national significance (as in the case of Kiev and Sevastopol), regional significance (within each oblast or autonomous republic) or district significance (all the rest of cities). City's significance depends on several factors such as its population, socio-economic and historical importance, infrastructure and others.

Question: how many oblast were present?
24