Area Code 9 – Mobile Network
The phone area code for Mobile Network is 9 (international format +549). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 9
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Overview of Argentina's Mobile Prefix 9
In Argentina, the national numbering plan follows ITU-T E.164 recommendations, with the country calling code +54. The prefix 9 is a non-geographic prefix used exclusively for mobile services. It is not tied to any specific region or province; instead, it identifies that the subscriber is reachable on a cellular network. All mobile numbers in Argentina are 10 digits long when dialed nationally, and they always begin with the digit 9 followed by a two-digit mobile network code (e.g., 11, 15, 22, 23, etc.) and a seven-digit subscriber number. This structure ensures that mobile numbers are easily distinguishable from fixed-line numbers, which typically start with an area code (e.g., 11 for Buenos Aires, 351 for Córdoba).
Dialing Formats for Argentina Mobile Numbers
Understanding the correct dialing format is crucial for both local and international callers. The format varies depending on whether you are calling from within Argentina or from abroad.
- National dialing (within Argentina): To call a mobile number from a fixed line or another mobile, you must dial the full 10-digit number, which begins with 9. For example, to call a mobile in Buenos Aires, you would dial: 9 11 1234 5678.
- International dialing (from outside Argentina): When calling from another country, you need to dial your country's exit code, followed by Argentina's country code 54, then the mobile number without the leading 9. However, there is a nuance: the Argentine mobile number already includes the 9 as part of the national significant number. Therefore, the international format is: +54 9 11 1234 5678. Note that the 9 is retained after the country code. For example, a caller from the US would dial: 011 54 9 11 1234 5678.
Mobile Network Operators and Portability
The prefix 9 is not assigned to a single operator; it is shared by all mobile network operators (MNOs) and mobile virtual network operators (MVNOs) in Argentina. The two-digit code following the 9 often indicates the original operator (e.g., 11 for Movistar, 15 for Personal, 22 for Claro), but due to mobile number portability (MNP), a subscriber can switch operators while retaining their number. Therefore, the prefix does not reliably indicate the current operator. For routing purposes, the network uses the full number to query the number portability database.
Special Considerations for SMS and International Calls
For international SMS, the message should be addressed to +54 9 11 1234 5678 (including the 9). For voice calls, some older systems may require dropping the 9 when dialing from abroad, but the current standard per ITU-T and ENACOM (the Argentine communications regulator) is to include it. Always verify with your service provider if you encounter issues. Additionally, when roaming, Argentine mobile numbers are reached via the same international format. Understanding these nuances ensures seamless connectivity with mobile users in Argentina.