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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. 3331-5779

ISSN Number

You are validating the ISSN 6721-2271

Totally 11 possible ISSN for your checking

But only one with Right is correct

  1. ISSN 6721-2270 Wrong ISSN
  2. ISSN 6721-2271 Correct ISSN
  3. ISSN 6721-2272 Wrong ISSN
  4. ISSN 6721-2273 Wrong ISSN
  5. ISSN 6721-2274 Wrong ISSN
  6. ISSN 6721-2275 Wrong ISSN
  7. ISSN 6721-2276 Wrong ISSN
  8. ISSN 6721-2277 Wrong ISSN
  9. ISSN 6721-2278 Wrong ISSN
  10. ISSN 6721-2279 Wrong ISSN
  11. ISSN 6721-227X 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.