Marketers have 30 days to ensure that no further unsolicited commercial messages are sent to domains included on the list.
The FCC adopted a general prohibition on the sending of spam to wireless phones and pagers in August last year and ordered that an official list of domains – which belong to service providers, not individual subscribers - be publicly posted, to be checked against marketing mailing lists.
Commercial messages cannot be sent to addresses that contain domains that have been on the list for at least 30 days, or at any time prior to 30 days if the sender otherwise knows that it is addressed to a wireless device. However, subscribers can opt to receive commercial messages from specific companies if they so wish.
The prohibition does not apply to messages sent solely to devices using phone numbers, nor does it apply to messages that are "transactional or relationship" messages – relating to, say, a subscriber query or invoice.