NOTE: As of Jan. 2012 the entity known as CallerID4U was granted Certificate of Authority to Provide Telecommunications Service in the state of Oregon, USA
http://apps.puc.state.or.us/edockets/docket.asp?DocketID=17253
US Immigration charges filed against a Alex-Synthey MADUNO in 1994 (believed to be the brother of Paul Maduno, also mentioned in the docket).
http://openjurist.org/40/f3d/1212/united-states-v-maduno