So some very nice are sold. And I added some private now for sale. This is the actual list:
AD.CI (Ads)
AS.CI
BY.CI *new*
CV.CI
ER.CI *new*
ES.CI
ET.CI *new*
EU.CI (European City)
MX.CI (Mexico CIty!)
NY.CI (New York City)
PL.CI *new*
QR.CI (QR 2D technology)
UA.CI *new*
UK.CI United Kingdom
US.CI United States , URL Shortener
Sale and details:
http://1-single-letter-domains.com/?r=_ci_cheap#2chars