ISBN registration group
ISBN group 978-955 — Sri Lanka
ISBNs beginning 978-955 are issued for Sri Lanka. The group identifier has 3 digits.
Registrant (publisher) ranges
| Registrant range | Registrant digits | Publication digits | Titles per registrant | Registrants in range |
|---|---|---|---|---|
| 0000–1999 | 4 | 2 | 100 | 2,000 |
| 20–33 | 2 | 4 | 10,000 | 14 |
| 3400–3549 | 4 | 2 | 100 | 150 |
| 35500–35999 | 5 | 1 | 10 | 500 |
| 3600–3799 | 4 | 2 | 100 | 200 |
| 38000–38999 | 5 | 1 | 10 | 1,000 |
| 3900–4099 | 4 | 2 | 100 | 200 |
| 41000–44999 | 5 | 1 | 10 | 4,000 |
| 4500–4999 | 4 | 2 | 100 | 500 |
| 50000–54999 | 5 | 1 | 10 | 5,000 |
| 550–710 | 3 | 3 | 1,000 | 161 |
| 71100–71499 | 5 | 1 | 10 | 400 |
| 7150–9499 | 4 | 2 | 100 | 2,350 |
| 95000–99999 | 5 | 1 | 10 | 5,000 |
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 978-955-. 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 2 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).