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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. 3440-4937

ISSN Number

You are validating the ISSN 6421-6225

Totally 11 possible ISSN for your checking

But only one with Right is correct

  1. ISSN 6421-6220 Wrong ISSN
  2. ISSN 6421-6221 Wrong ISSN
  3. ISSN 6421-6222 Wrong ISSN
  4. ISSN 6421-6223 Wrong ISSN
  5. ISSN 6421-6224 Wrong ISSN
  6. ISSN 6421-6225 Correct ISSN
  7. ISSN 6421-6226 Wrong ISSN
  8. ISSN 6421-6227 Wrong ISSN
  9. ISSN 6421-6228 Wrong ISSN
  10. ISSN 6421-6229 Wrong ISSN
  11. ISSN 6421-622X 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.