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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. 8878-5637

ISSN Number

You are validating the ISSN 4509-0440

Totally 11 possible ISSN for your checking

But only one with Right is correct

  1. ISSN 4509-0440 Correct ISSN
  2. ISSN 4509-0441 Wrong ISSN
  3. ISSN 4509-0442 Wrong ISSN
  4. ISSN 4509-0443 Wrong ISSN
  5. ISSN 4509-0444 Wrong ISSN
  6. ISSN 4509-0445 Wrong ISSN
  7. ISSN 4509-0446 Wrong ISSN
  8. ISSN 4509-0447 Wrong ISSN
  9. ISSN 4509-0448 Wrong ISSN
  10. ISSN 4509-0449 Wrong ISSN
  11. ISSN 4509-044X 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.