This page connects featured cities in Autonomous City of Buenos Aires with their published or clearly qualified telephone numbering associations.
“Largest” refers to the priority city set used by this directory. It is not a live population ranking.
| City | Domestic area code | International prefix | Context |
|---|---|---|---|
| Buenos Aires | 011 | +54 11 | The 011 area code serves the Buenos Aires Metropolitan Area; administrative boundaries and the numbering area are not identical. |
For a fixed line, remove the domestic 0 before +54. For a mobile from abroad, use +54 9 + area code + local number and omit both the domestic 0 and the domestic mobile prefix 15.
Argentina Time (ART), UTC−3 year-round
America/Argentina/Buenos_Aires: Calculated in your browser
An area code identifies an ENACOM local numbering area, not an exact address. The code alone does not reveal a subscriber or guarantee the current carrier. Fixed and mobile numbers use different international formats, so the +54 9 mobile rule must be checked before calling a mobile.
A code listed beside a city reflects a featured numbering association; it does not assert that every community in Autonomous City of Buenos Aires uses that code or that the code stops at the administrative border.
This release includes 1 verified or clearly qualified code association for the featured cities in Autonomous City of Buenos Aires.