ISBN registration group
ISBN group 978-9944 — Türkiye
ISBNs beginning 978-9944 are issued for Türkiye. The group identifier has 4 digits.
Registrant (publisher) ranges
| Registrant range | Registrant digits | Publication digits | Titles per registrant | Registrants in range |
|---|---|---|---|---|
| 0000–0999 | 4 | 1 | 10 | 1,000 |
| 100–499 | 3 | 2 | 100 | 400 |
| 5000–5999 | 4 | 1 | 10 | 1,000 |
| 60–69 | 2 | 3 | 1,000 | 10 |
| 700–799 | 3 | 2 | 100 | 100 |
| 80–89 | 2 | 3 | 1,000 | 10 |
| 900–999 | 3 | 2 | 100 | 100 |
Shorter registrant numbers are issued to larger publishers (more publication digits = more titles).
Reading an ISBN from this group
Every ISBN in this group starts 978-9944-. The next digits are the registrant; look up which range the following seven digits fall into to know how long the registrant element is. For example, if the registrant has 4 digits, the publication element has 1 digits, then comes the check digit.
Check, convert or hyphenate any ISBN with the ISBN converter, and make a print-ready barcode with the ISBN barcode generator.
Sources & data
- International ISBN Agency RangeMessage (Fri, 2 Oct 2026 16:08:21 UTC).