ISBN registration group
ISBN group 978-80 — former Czechoslovakia
ISBNs beginning 978-80 are issued for former Czechoslovakia. The group identifier has 2 digits.
Registrant (publisher) ranges
| Registrant range | Registrant digits | Publication digits | Titles per registrant | Registrants in range |
|---|---|---|---|---|
| 00–19 | 2 | 5 | 100,000 | 20 |
| 200–529 | 3 | 4 | 10,000 | 330 |
| 53000–54999 | 5 | 2 | 100 | 2,000 |
| 550–689 | 3 | 4 | 10,000 | 140 |
| 69000–69999 | 5 | 2 | 100 | 1,000 |
| 7000–8499 | 4 | 3 | 1,000 | 1,500 |
| 85000–89999 | 5 | 2 | 100 | 5,000 |
| 900000–998999 | 6 | 1 | 10 | 99,000 |
| 99900–99999 | 5 | 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 978-80-. 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 2 digits, the publication element has 5 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).