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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. 8320-0320

ISSN Number

You are validating the ISSN 4020-9520

Totally 11 possible ISSN for your checking

But only one with Right is correct

  1. ISSN 4020-9520 Correct ISSN
  2. ISSN 4020-9521 Wrong ISSN
  3. ISSN 4020-9522 Wrong ISSN
  4. ISSN 4020-9523 Wrong ISSN
  5. ISSN 4020-9524 Wrong ISSN
  6. ISSN 4020-9525 Wrong ISSN
  7. ISSN 4020-9526 Wrong ISSN
  8. ISSN 4020-9527 Wrong ISSN
  9. ISSN 4020-9528 Wrong ISSN
  10. ISSN 4020-9529 Wrong ISSN
  11. ISSN 4020-952X 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.