Short code
short digit sequences used to address SMS messages
Short codes, or short numbers, are short digit-sequences – significantly easier to read and remember than telephone numbers – that are used to address messages in the Multimedia Messaging System (MMS) and short message service (SMS) systems of mobile network operators. In addition to messaging, they may be used in abbreviated dialing.
Short codes are unique to each operator at the technological level. Even so, providers generally have agreements to avoid overlaps. In some countries, such as the United States, some classes of numbers are inter-operator (used by multiple providers or carriers). U.S. inter-operator numbers are called common short codes.
Organisations often use short codes to encourage users to engage with services such as charity donations, mobile services, ordering ringtones, or television-program voting. Messages sent to a short code can be billed at a higher rate than a standard SMS and can sometimes subscribe users to a recurring monthly services. These charges continue to appear on the user's mobile-phone bill until the user texts, for example, the word "STOP" to cancel the subscription.
Short codes and service identifiers (prefix)
Short codes are often associated with automated services.
This brief starts where responsible research should: with the source description of “Short code” as short digit sequences used to address SMS messages. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as short digit sequences used to address SMS messages. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Mar 5, 2026. The linked authority identifier is Q2389293. None of the 0 selected statements returned an explicit reference.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Short code”, its source revision and the description used here.
- Expand the search: follow Short code primary sources, Short code archive and Short research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Short code”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Short code” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.