Displaying and downloading registered and free number ranges belonging to the selected service.
	Service - NDC :   Freephone service numbers (national) - 80 Premium-rate service numbers - 91 Premium-rate service numbers (adult) - 90 Intervals :   Registered Free Free and Quarantined Assignment status of a number range belonging to a given special toll service number NDC and subscriber number :    8-digit number, without separators