Don't even think about regging one of these, these little gems are Neustar reserved:
ASSINIBOINEANDSIOUXTRIBESOFTHEFORTPECKINDIANRESERVATION.US
ARTHRITISANDMUSCULOSKELETALINTERAGENCYCOORDINATINGCOMMITTEE.US
BUREAUOFINTERNATIONALNARCOTICSANDLAWENFORCEMENTAFFAIRS.US
CACHILDEHEBANDOFWINTUNINDIANSOFTHECOLUSAINDIANCOMMUNITYOFTHECOL.US
CONFEDERATEDTRIBESANDBANDSOFTHEYAKAMAINDIANNATIONOFTHEYAKAMARES.US
COORDINATINGCOUNCILONJUVENILEJUSTICEANDDELINQUENCYPREVENTION.US
FEDERALINTERAGENCYCOMMITTEEFORTHEMANAGEMENTOFNOXIOUSANDEXOTICWE.US
HOUSESUBCOMMITTEEONAGRICULTURERURALDEVELOPMENTFOODANDDRUGADMINI.US
HOUSESUBCOMMITTEEONLABORHEALTHANDHUMANSERVICESEDUCATIONANDRELAT.US
And the winners are these 66 character tongue twisters:
SANTAROSAINDIANCOMMUNITYOFTHESANTAROSARANCHERIAAND
SANTAROSATOWN.US
SENATESUBCOMMITTEEONOVERSIGHTOFGOVERNMENTMANAGEMENTRESTRUCTURIN.US
Without the oversite and vigilance of Neustar, these top names would have been regged long ago, and be doing a brisk business selling MP3 or video games.