Talk:International Standard Serial Number

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Code format[edit]

Here is a regular expression for this code, I don't know if I should put this into the main text: [0-9]{4}-[0-9]{3}[0-9X] --Maximilianh (talk) 17:24, 17 December 2009 (UTC)

ISSN Applications[edit]

It would be very useful to have a section on applying for an ISSN, particularly (if it's indeed possible) for international publishers, since the US website only gives advice for US citizens. Rufous 18:30, 26 July 2006 (UTC)

Broken link in Availability section[edit]

This link ISSN checking facility mentioned in the Availability section of the article appears to be broken. I spent a few minutes figuring out how to fix/correct it ... and didn't get very far. Keesiewonder 14:21, 2 December 2006 (UTC)

As a stopgap, consider using this web service: Fill the ISSN into the lower box (the one marked 'Complete'), then hit the question-mark button, and it will report on validity. I sent an email to the web site that their digit-checking service was broken. Of course, if you become a paid subscriber of, I assume you can find out if the candidate ISSN was really issued and get the name of the publication. Another option is to look up a publication in If it's in there, and if it's a recent journal, it should give the ISSN. EdJohnston 17:06, 2 December 2006 (UTC)
There is also a one month free trial. Or you can get [[WP:AWB] and my ISSN checking script which I will try to publish soon. Rich Farmbrough, 19:26 2 December 2006 (GMT).

Query of the calculations[edit]

I am by no means a mathmetician, but surely the line given:

The modulus 11 of this sum is then calculated. Some calculators have a mod() function: 160 mod 11 = 6.

... is incorrect? The resultant figure still has to be subtracted from eleven, so should equal 5?

Also, surely it must be worth stating that:

160/11 = 14 remainder 6.

... the remainder is actually [0.] 5454 (recurring) and is therefore rounded up to 6?

As I say... my maths is suspect, but...! :-)

—Preceding unsigned comment added by GlassyEye (talkcontribs) 12:50, 10 September 2008 (UTC)

160 mod 11 means the integer remainder of 160 divided by 11, which is 6. The "subtracted from 11" is the next part of the ISSN calculation and is not part of the remainder calculation. Roger Hui (talk) 15:25, 10 September 2008 (UTC)

The article needs an updated information....[edit]

according to the content in the following (talk) 11:21, 26 March 2009 (UTC)

That sounds relevant. Do you know what is in the new document? It is tricky to add something to the article's reference list if no-one has seen it and knows for sure what it is. Maybe this document can be found in a library somewhere. EdJohnston (talk) 14:35, 26 March 2009 (UTC)

Mentioned at WorldCat[edit]

This article has been mentioned in the documentation on the OCLC's WorldCat site.LeadSongDog come howl 17:22, 14 September 2009 (UTC)

Why isn't print version distinguished from electronic version.....???[edit]

-- (talk) 05:59, 8 April 2010 (UTC)

-- (talk) 06:04, 8 April 2010 (UTC)

??Where the answer for this question??... well... I posted a new one, #Contradiction, more elaborated, but perhaps about the same subject. --Krauss (talk) 16:53, 10 February 2014 (UTC)

Disable the number highlighting option for Skype in your browser to prevent ISSNs turning into Skype telephone numbers[edit]

Greetings. If you see ISSNs in the range 0910-0000 to 0999-9999 displayed as Skype telephone numbers, disable the number highlighting option for Skype in your browser and everything will get back to normal Signed: Basemetal (write to me here) 15:46, 16 December 2012 (UTC)

Running out of code space[edit]

Is there any concern about the system running out of available codes since the world length is so short? I assume old numbers cannot be re-used since publications have no "lifetime". -- J7n (talk) 01:57, 13 February 2013 (UTC)

Linking ISSNs[edit]

There's a thing called a "linking ISSN":

-- (talk) 14:29, 26 August 2013 (UTC)


At intro the article say,

An ISSN is a unique eight-digit number used to identify a print or electronic periodical

so, if it is "print or electronic" it is NOT UNIQUE! , because what I see is a lot of journals using 2 ISSNs for the same content.

This is not only a text contradiction...

Content Model contradiction: today, the set of all articles of an "INSS-journal" have a DOI... If we see the journal as a set of DOIs (no matter if electronic or print, each DOI is unique), then the journal is unique, no matter if electronic or print. The "DOI-view" of an article as content is based on its indecs Content Model.


  • Some journals have exactly the same content, at print and electronic medias: for that kind of journal, only one ISSN is need (!)... In the past (1990's) perhaps, but today, does not make sense: the "Code assignment authority" acts as slot machine, requering 2 ISSN numbers for something that need only one – it causes a lot of confusion.
  • Some journals, with same name at print and eletronic media, have different contents at each media: for that kind of journal, where the jorunal name is a brand name, each different product (ex. a blog online and the real journal at print), must be assigned with a different ISSN.

--Krauss (talk) 16:45, 10 February 2014 (UTC)

Fixed the problem changing text and adding ISSN-L definition, that not was there (!).

NOTE: what surprises is that the 1970's strategy of "media-oriented assign" was an error, not resolving the uniqueness demand (see ex. workaround at NLM with JID), and confirmed in the 1990's... But ISO and ISSN work-group only recognized it in 2007, with the ISO-3297 (~30 years after)... Meanwhile 1998's indecs Content Model was created and widelly used, and, "tired of waiting ISSN", in 2000 launched the Digital Object Identifier.

--Krauss (talk) 00:48, 17 February 2014 (UTC)