Banks and exchange You'll find dozens of authorized "Foreign Exchange Banks" all over central Tokyo; Tokyo Mitsubishi Bank generally handles the broadest range of currencies. If you need money outside banking hours , the major department stores often have exchange desks, though most handle a very restricted range of currencies. You can make credit card withdrawals from "international ATMs" at the post office and at cash corners run by Visa (tel 0120-133173), Mastercard (tel 00531/11-3886) and Citibank (tel 0120-504189); call their 24hr toll-free English-language helplines to find the machine nearest you - some are accessible 24hr. The American Express office in Ogikubo also has a 24hr ATM (American Express cards only). Visa and Mastercard holders can make over-the-counter cash withdrawals from Tokyo Mitsubishi Bank's head office (2-7-1 Marunouchi), while major branches of Sumitomo Bank (due to be renamed Mitsui Sumitomo) handle Visa card withdrawals only.