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Area code 021

Wikimedia disambiguation page

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 9, 2025
Entity authorityQ4788552
Source-derived summary

021 is:

in Brazil, the telephone area code for the city of Rio de Janeiro and surrounding cities (Greater Rio de Janeiro)

in China, the telephone area code for the city of Shanghai.

in Indonesia, the area code for the city of Jakarta and surrounding cities.

in Iran, the telephone area code for the capital city of Tehran.

in Ireland, the area code for the city of Cork and a surrounding part of County Cork.

in Libya, the telephone area code for the capital city of Tripoli.

in Nepal, the Nepal Telecom telephone area code for the district of Morang.

in New Zealand, the "area code" for cellular phones on the Vodafone network.

in Pakistan, the telephone area code for the city of Karachi.

in Serbia, the area code for the city of Novi Sad.

see Telephone numbers in South Africa.

Editorial summary

“Area code 021” enters the record as wikimedia disambiguation page. Crown Archives preserves that source wording while asking what Area, code and Wikimedia can confirm, complicate or overturn.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current 141-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Area, code and Wikimedia.
Editorial analysis

Why this record matters

“Area code 021” is worth following because a concise public description often conceals a longer documentary argument. Here, Area, code and Wikimedia provides the most credible route into that argument.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 9, 2025. The linked authority identifier is Q4788552. None of the 0 selected statements returned an explicit reference.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. 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.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Area code 021”, its source revision and the description used here.
  2. Expand the search: follow Area code 021 primary sources, Area code 021 archive and Area research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Area code 021”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which institution is responsible for the underlying evidence?
Subject index

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Source & attribution

This entry incorporates text from Area code 021” 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.