The telephone office, in conjunction with NTT Communications, provides ADSL service to a limited number of subscribers. The wait list depends on the number of people currently waiting for DSL versus the number of people who are giving up their DSL (such as those who are PCSing who had DSL), but you can expect to wait roughly 12-18 months.
You must have Windows XP or later Windows version operating system for ADSL. There is a one-time installation fee of $10, and the monthly fee is $52.65 payable to the base telephone office. Additionally, you will pay a monthly fee of 2,047 yen to the Japanese company off base, payable at any 7-11 or convenience store (there is a 7-11 located at 4-corners out the main gate).
The total cost of the service is approximately $72 a month.
*The ADSL monthly fee is figured by Budget yen rate.
*ADSL monthly fee will not be prorated (whether you use the service for one day, or the entire month, the cost is the same).