My online look-up database can now be found here. Updated regularly.
Queries, additions, comments and questions welcome: db [at] selcalweb.co.uk
Jan 20, 2018. Regrettably, due to abuse by parties that are not using the database for its intended purpose* I have had to restrict access. Unfortunately genuine HF listeners and selcal enthusiasts will be caught in the crossfire. Whilst I figure out a way to prevent abuse I am happy to tie-up selcals from your HF logs on a direct basis via the email address above, however please note that selcal code requests for registrations are not accepted.
* "intended purpose" does not mean running bot programs to extract the contents to republish on other websites, particularly (but not limited to) those for commercial gain.