ISBN registration group
ISBN group 978-9908 — Estonia
ISBNs beginning 978-9908 are issued for Estonia. The group identifier has 4 digits.
Registrant (publisher) ranges
| Registrant range | Registrant digits | Publication digits | Titles per registrant | Registrants in range |
|---|---|---|---|---|
| 0–3 | 1 | 4 | 10,000 | 4 |
| 40–69 | 2 | 3 | 1,000 | 30 |
| 7–7 | 1 | 4 | 10,000 | 1 |
| 80–81 | 2 | 3 | 1,000 | 2 |
| 8200000–8249999 | — | — | — | Not yet assigned |
| 825–899 | 3 | 2 | 100 | 75 |
| 90–92 | 2 | 3 | 1,000 | 3 |
| 9300000–9599999 | — | — | — | Not yet assigned |
| 9600–9699 | 4 | 1 | 10 | 100 |
| 9700–9999 | 4 | 1 | 10 | 300 |
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 978-9908-. 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 1 digits, the publication element has 4 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).