
Argentina's telephone number system is a bit complex, but don't worry, I've got you covered. Argentina uses a combination of 9 and 10-digit numbers, depending on the type of call you're making.
The country code for Argentina is +54, which you'll need to dial when calling from abroad. This is a crucial number to remember if you're planning to make international calls.
Argentina's telephone numbers are divided into several sections, including a 2-digit area code, a 6-digit subscriber number, and a 1-digit trunk prefix for mobile numbers.
Additional reading: Vertical Service Code
Number Formats
Argentina's telephone numbers follow a hierarchical system, with a country code of +54, which is Argentina's unique international identifier.
The country code is always the first part of an Argentine phone number.
The area code is 2-4 digits long and indicates the geographic region. The length of the area code varies based on population density.
A landline phone number in Argentina looks like this: +54 11 1234 5678.
Broaden your view: Mobile Dial Code
Mobile numbers are distinguished by a mandatory "9" prefix inserted before the area code, like this: +54 9 11 1234 5678.
Here's a summary of the different number formats in Argentina:
A key principle to keep in mind is that the combined length of the area code and subscriber number always equals 10 digits.
Local Dialing
Local dialing in Argentina is a bit complex, but don't worry, I've got the basics covered. Most of Greater Buenos Aires uses 8-digit local landline phone numbers, while second-tier cities use 7 digits and remaining towns and cities use 6 digits.
To call a local number within Buenos Aires, you'll need to dial the 8-digit number, which usually starts with 4. For example, to call 1234-5678, you'd dial 1234-5678. It's worth noting that in recent times, numbers with 2, 3, 5, 6, or even 7 and 8 as the first digit are not uncommon.
Here's a breakdown of the different local number lengths by city type:
- Greater Buenos Aires: 8 digits
- Second-tier cities: 7 digits
- Remaining towns and cities: 6 digits
This can be a bit tricky to remember, but with a little practice, you'll be dialing like a pro in no time!
Mobile
Mobile phone numbers in Argentina have a unique prefix that sets them apart from landline numbers. The prefix 15 is a required digit when dialing a mobile phone locally, and it's not part of the actual phone number.
To call a mobile phone in Argentina, you need to dial 15 followed by the subscriber's number. For example, to call a Villa Carlos Paz mobile number from Villa Carlos Paz, you dial 15 xx-xxxx.
If you're calling a mobile phone in a different area code, you need to dial the area code, followed by the mobile prefix 15, and then the number. For instance, to call a Mar del Plata mobile from Buenos Aires, you dial 0 223 15 xxx-xxxx.
Some examples of mobile phone numbers in Argentina include (11) 15 1234–5678 Buenos Aires, (380) 15 123–4567 La Rioja, and (2966) 15 12-3456 Río Gallegos.
When giving out your mobile number to others, keep in mind that the prefix 15 is not part of the actual phone number, but it's often included. This can cause confusion when the prefix must be omitted, such as on IVR menus or when calling from abroad.
Mobile phones in Argentina can be 6, 7, or 8 digits long, just like landline numbers.
Explore further: Mobile Telephone Numbering in India
Number Management
In Argentina, telephone numbers are formatted differently depending on the type of service. For landline numbers, the format is +54 11 1234 5678, with the area code being one to three digits.
The current numbering system uses fixed-length eight-digit national numbers, consisting of a variable-length area code and a variable-length subscriber number. This structure is used for both landline and mobile numbers.
The structure of the subscriber number varies in length, with five to seven digits for mobile numbers and five to seven digits for landline numbers. This allows for a range of possible subscriber numbers within each area code.
Here are the different types of phone numbers and their formats:
ENACOM, the regulatory body, requires real-time validation for premium services, enhanced user consent mechanisms, and strict adherence to number formatting standards.
Present Situation
The current numbering system in Argentina uses eight-digit national numbers, consisting of a variable-length area code and a variable-length subscriber number.

Less than 10% of the total numbering capacity is being used in the country as a whole.
The Buenos Aires Metropolitan Area, however, has a much higher usage rate, with approximately 50% of its numbering capacity being used.
The code format for special services is 1XY, except for operator services, which are 19 and 000.
Special services include emergency calls, community services, and customer care services of telecommunication service providers.
The current system has a fixed-length eight-digit structure, which is being updated to a ten-digit structure, starting from country code 54.
Expand your knowledge: Telephone Numbering Plan
Numbering by Type
Argentina's number management system is based on a hierarchical structure, which is crucial for validation. The combined length of the area code and subscriber number always equals 10 digits.
To understand how numbers are formatted, let's break it down by type. In Argentina, landline numbers are assigned based on regional location and follow the format +54 11 1234 5678.
Mobile numbers, on the other hand, are distinguished by a mandatory "9" prefix inserted before the area code, making them +54 9 11 1234 5678.

Toll-free numbers are accessible nationwide without charge to the caller and start with +54 800 123 4567.
Premium rate numbers, often used for value-added content or specialized assistance, have a special billing rate and start with +54 600 123 4567.
Here's a quick reference to the different types of numbers in Argentina:
- Landline: +54 11 1234 5678
- Mobile: +54 9 11 1234 5678
- Toll-Free: +54 800 123 4567
- Premium Rate: +54 600 123 4567
Number Portability
Number portability is a feature that allows users to switch phone providers while keeping their phone number.
In Argentina, number portability was implemented in March 2012, after being postponed several times due to lobbying from operators.
This means users can keep their phone number even if they switch to a new provider, as long as they remain in the same subscriber local area.
Non-geographic numbers like 0800 or 0810 can't be called from outside Argentina.
Some companies don't publish their geographic number, making it harder for international callers to reach them.
See what others are reading: Block Telephone Number on Cell Phone
Enacom Requirements
ENACOM Requirements are crucial for maintaining a smooth and secure numbering system in Argentina. ENACOM mandates real-time validation for premium services to prevent unauthorized charges.

For premium services, ENACOM requires explicit user consent before charging. This ensures users are aware of the costs and agree to them.
ENACOM also emphasizes the importance of strict adherence to number formatting standards. This means using the correct formats for storage and display, such as the 10-digit format for landline numbers (+54 11 1234 5678).
Regular auditing of number usage is another requirement. This involves maintaining records of number usage for compliance audits, which helps ENACOM ensure the numbering system is being used correctly.
Here are the key ENACOM Requirements:
- Real-time validation for premium services
- Enhanced user consent mechanisms
- Strict adherence to number formatting standards
- Regular auditing of number usage
Verify
Verify a phone number is crucial to ensure it's valid and belongs to Argentina. Our phone number lookup tool does just that by analyzing the country code and number format.
Argentina phone numbers use the country code +54 and follow a 10-digit national format. You can quickly verify a phone number by checking its country code and number format.
To verify a phone number in Argentina, you can use the following steps:
- Check the country code: +54
- Check the number format: 10 digits
- Check the area code: starts with 9 for mobile numbers
Here's a quick reference to help you verify a phone number in Argentina:
Quick Reference
Argentina's telephone number system is straightforward. The country code for Argentina is +54, which is the same code you'll use when dialing from outside the country.
To call a local number, you'll need to use the national prefix, also known as the trunk code, which is 0.
Here's a quick reference guide to help you get started:
- Country: Argentina
- Country Code: +54
- International Prefix: 00
- National Prefix (Trunk Code): 0
Implementation
To implement telephone numbers in Argentina, you need to follow the guidelines provided in this guide.
The guide has provided a comprehensive overview of Argentinan phone numbers, covering their structure and history.
To ensure accurate and efficient handling of Argentinan phone numbers, follow the implementation guidelines outlined in this guide.
Argentinan phone numbers have a specific structure that must be taken into account when implementing them.
By following these guidelines, you can ensure your applications handle Argentinan phone numbers accurately and efficiently.
Frequently Asked Questions
What area code is 264 in Argentina?
Area code 264 is located in San Juan, Argentina. It serves the city and surrounding region in the Cuyo area.
How many digits are in a phone number in Argentina?
In Argentina, a standard phone number consists of 10 digits, combining a 2- or 3-digit area code with a 7- or 8-digit subscriber number. This format applies to all phone numbers in the country.
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