The provinces of ancient Japan (令制国 Ryōseikoku?) were in effect from the 7th century until the Meiji Period. The list is based on the Gokishichidō (五畿七道?), which includes short-lived provinces. Provinces located within Hokkaidō are listed last. To date, no official order has been issued abolishing the ancient provinces. Nonetheless, today they are considered obsolete. What follows is a list of the individual provinces along with some details.
The borders of the provinces changed until the end of the Nara Period and during the Meiji Period. From the Heian Period until the Edo Period, the borders remained unchanged.
For the demographic data of provinces during Edo period, see Demographics of Japan before Meiji Restoration.