We check this website, now 123-reg.co.uk is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is 123-reg Down Right Now? - NO! 123-reg is up!
If you have problem with access to site 123-reg, and domain 123-reg.co.uk is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).