ISBN registration group
ISBN group 978-622 — Iran
ISBNs beginning 978-622 are issued for Iran. The group identifier has 3 digits.
Registrant (publisher) ranges
| Registrant range | Registrant digits | Publication digits | Titles per registrant | Registrants in range |
|---|---|---|---|---|
| 00–10 | 2 | 4 | 10,000 | 11 |
| 110–129 | 3 | 3 | 1,000 | 20 |
| 1300–1799 | 4 | 2 | 100 | 500 |
| 180–182 | 3 | 3 | 1,000 | 3 |
| 1830–1899 | 4 | 2 | 100 | 70 |
| 190–194 | 3 | 3 | 1,000 | 5 |
| 19500–19999 | 5 | 1 | 10 | 500 |
| 200–459 | 3 | 3 | 1,000 | 260 |
| 4600–8749 | 4 | 2 | 100 | 4,150 |
| 87500–99999 | 5 | 1 | 10 | 12,500 |
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 978-622-. 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 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).