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ISSN Number Checker

ISSN numbers consist of 8 digits. To check validity of an ISSN number enter the 8 digit ISSN number in the box below. You may also enter one ISSN with hyphen, e.g. 2912-607X

ISSN Number

You are validating the ISSN 9840-1521

Totally 11 possible ISSN for your checking

But only one with Right is correct

  1. ISSN 9840-1520 Wrong ISSN
  2. ISSN 9840-1521 Correct ISSN
  3. ISSN 9840-1522 Wrong ISSN
  4. ISSN 9840-1523 Wrong ISSN
  5. ISSN 9840-1524 Wrong ISSN
  6. ISSN 9840-1525 Wrong ISSN
  7. ISSN 9840-1526 Wrong ISSN
  8. ISSN 9840-1527 Wrong ISSN
  9. ISSN 9840-1528 Wrong ISSN
  10. ISSN 9840-1529 Wrong ISSN
  11. ISSN 9840-152X Wrong ISSN

What is ISSN?

ISSN is a worldwide identification code used by publishers, suppliers, libraries, information services, bar coding systems, union catalogues, etc. for citation and retrieval of serials such as Journals, Newspapers, Newsletters, Directories, Yearbooks, Annual Reports & Monograph series, etc. The benefits include international publicity and recognition of the serial by automatic inclusion in the International Serials Directory Database.

It is an eight digit number consisting of seven digits plus a check digit which enables a computer to recognise when the number is incorrectly cited. The check digit may be an X, otherwise the ISSN is fully numeric.