World Telephone Numbering Guide

Argentina +54

Number Format

Area Code:            2-4 digits
Subscriber Number:    5-8 digits
Trunk Prefix:         0
International Prefix: 00

Area code information

• list from CNC (national regulator)
• Stilman
• DCCL

from 27 November 2011 - changes to 21 area codes

21 area codes in Argentina were changed between November 2011 and April 2012. In three area codes (Bellville, San Pedro, Tartagal), the subscriber number remains unchanged. Otherwise, a 4-digit area code is reduced to 3 digits while the subscriber number expands from 6 to 7 digits. Permissive and mandatory dates vary according to the area code involved. 

Old format       New format      Location          Permissive  Mandatory
==========       ==========      ========          ==========  =========
+54 2293 xxxxxx  +54 229 4xxxxxx Tandil            1 Apr 2012  20 Apr 2012
+54 2322 xxxxxx  +54 230 4xxxxxx Pilar             1 Apr 2012  20 Apr 2012
+54 2362 xxxxxx  +54 236 4xxxxxx Junin             1 Apr 2012  20 Apr 2012
+54 2623 xxxxxx  +54 263 4xxxxxx San Martin        29 Jan 2012 17 Feb 2012
+54 2627 xxxxxx  +54 260 4xxxxxx San Rafael        29 Jan 2012 17 Feb 2012
+54 2652 xxxxxx  +54 265 4xxxxxx San Luis          27 Nov 2011 16 Dec 2011
+54 2941 xxxxxx  +54 298 4xxxxxx General Roca      27 Nov 2011 16 Dec 2011
+54 2944 xxxxxx  +54 294 4xxxxxx S.C. de Bariloche 29 Jan 2012 17 Feb 2012
+54 2965 xxxxxx  +54 290 4xxxxxx Trelew            27 Nov 2011 16 Dec 2011
+54 3461 xxxxxx  +54 347 4xxxxxx San Nicolas       1 Apr 2012  20 Apr 2012
+54 3488 xxxxxx  +54 348 4xxxxxx Escobar           1 Apr 2012  20 Apr 2012
+54 3534 xxxxxx  +54 3537 xxxxxx Bellville         29 Jan 2012 17 Feb 2012
+54 3717 xxxxxx  +54 371 4xxxxxx Formosa           1 Apr 2012  20 Apr 2012
+54 3722 xxxxxx  +54 372 4xxxxxx Resistencia       29 Jan 2012 17 Feb 2012
+54 3732 xxxxxx  +54 374 4xxxxxx Pres. R.S. Pena   29 Jan 2012 17 Feb 2012
+54 3752 xxxxxx  +54 376 4xxxxxx Posadas           27 Nov 2011 16 Dec 2011
+54 3783 xxxxxx  +54 378 4xxxxxx Corrientes        29 Jan 2012 17 Feb 2012
+54 3822 xxxxxx  +54 382 4xxxxxx La Rioja          1 Apr 2012  20 Apr 2012
+54 3833 xxxxxx  +54 383 4xxxxxx Catamarca         1 Apr 2012  20 Apr 2012
+54 3875 xxxxxx  +54 3873 xxxxxx Tartagal          27 Nov 2011 16 Dec 2011
+54 3884 xxxxxx  +54 3888 xxxxxx San Pedro         27 Nov 2011 16 Dec 2011

Source: CNC announcement (10 November 2011, via ITU)

(with tip courtesy Sergiu Rosenzweig)

1 January 2003 - new prefix for mobile calls

From 1 January 2003, all calls from other nations to Argentina mobile numbers include a prefix digit '9' before the area code.

That is, to reach an Argentina mobile number, dialling format after international prefix is:

+54 + 9 + area code + subscriber number (without '15' prefix)

Mobile numbers in Argentina may be listed as 15-xxxxxxx. However, the leading '15' is a domestic prefix which must be omitted when calling these from outside Argentina, with the xxxxxxx being the actual subscriber number portion.

(information courtesy Hernan M. Popper, Mike Taylor)

24 January 1999 - National renumbering

Effective 24 January 1999, a major renumbering affects all telephone numbers in Argentina:

1) The digit 4 will be added before subscriber numbers.

2) One digit will be added before area codes:

• 1 before the Federal Capital (Buenos Aires) area
• 2 before southern areas under Telefonica's operation
• 3 before northern areas under Telecom's operation

Further information is available from Telefonica.

A permissive dialling period allowed calling through either the old or new numbering until 24 April 1999.

See also a Telintar Norte numeracion page.

See also KDDI bulletin of 28 December 1998.

24 December 1999 - extra 2 digits for 06xx, 08xx service

As of 24 December 1999, numbers on non-geographic services such as 0610, 0800 and 0810 were expanded by two digits by twice repeating the digit that follows the service code. For example: 0800 3 4567 became 0800 333 4567. That is, 5-digit numbers following the service code (0610, 0800, 0810) became 7-digit numbers.

Source: Telefónica announcement.

27 November 1998 - Uruguay dialling arrangements discontinued

Calls from Argentina to certain Uruguay places previously used special area codes as allocated within the domestic network. These arrangements were discontinued in favour of international dialling format using 00 + 598 as of 27 November 1998.

The following table indicates the affected Uruguay points, with the former and new access codes as would be dialled from Argentina:

Uruguay place    Former access    New access
=============    =============    ==========
Colonia          0222-            00-598-52-
La Barra         0842-            00-598-42-
Maldonado        0842-            00-598-42-
Montevideo       059 -            00-598-2-
Punta del Este   0842-            00-598-42-

Source: Telefónica announcement.

24 January 1999 - various service changes

Conference call service code changed from 0747 to 0607 on 24 January 1999. The previous 5-digit number following the service code was also expanded to 7 digits by twice repeating the service number's leading digit. e.g. 0747 1 2345 became 0607 111 2345.

Also, "Collection of Charities" lines changed code from 0939 to 0605. The previous 5-digit number following 0939 was expanded to a 7-digit number following 0605, by twice repeating the number's lead digit similar to the change for Conference call service above e.g. 0939 1 7676 became 0605 111 7676.

Memobox messaging service access also changed from 123 to *123 on 24 January 1999 (asterisk now precedes the '123').

Source: Telefónica announcement.

Localised changes 1996 - 1998

The following changes were based on press releases from Telefonica. The original links to press releases became unavailable some time ago but were originally available as web pages.

• 16 May 1998: 1015 Customers in Quilmes (area codes 224, 253, 254, 257) changed area code to 278 with changes to subscriber numbers in some cases.
• 17 April 1998: 0810 is for local rate access services throughout Argentina (Telefonica territory). This replaces 0801 service, with permissive dialling of either 0801 or 0810 for 60 days.
• 5 April 1998: 170 customers of Villanueva (General Paz District) area codes 3 and 4 change to area code 94, with some subscriber numbers changed.
• 28 March 1998: 2262 customers in Pigüé (Buenos Aires Province) with area codes 2, 3, 4, 5 and 6 change to area codes 72, 73, 74, 75 and 76, respectively. Subscriber numbers should remain unchanged.
• 21 March 1998: 1300 customers of Florencio Varela (Buenos Aires province) area codes 237, 255 and 287 consolidated to area code 351, with most subscriber numbers changed.
• 13 March 1998: Telefonica begins 0610 Internet access code in the Greater Buenos Aires and Federal Capital areas. 0610 was already in service in other cities. Calls through 0610 are specially discounted in order to encourage Internet development in Argentina.
• 8 March 1998: 250 customers in Pila (Buenos Aires province) changed from area code 8 to 98. Subscriber numbers should remain unchanged.
• 26 February 1998: new service of 15 lines and public phone installed in Libano, General Lamadrid District, Buenos Aires Province. The new lines will be area code 286, subscriber numbers range 90200-90215.
• 21 February 1998: 1,266 customers in Magdalena (Buenos Aires province) change from area codes 2 and 3 to 52 and 53 respectively. Subscriber numbers should remain unchanged.
• 2 February 1998: 1782 customers of Lobería (Buenos Aires Province) changed from area codes 2 and 3 to 42 and 43 respectively. Subscriber numbers should remain unchanged.
• 2 February 1998: 3,401 customers of Dolores changed from area codes 2, 3, 6 and 7 to 42, 43, 46 and 47 respectively. Subscriber numbers should remain unchanged.
• 21 October 1997: 255 customers of Villa Manzano (Rio Negro province) changed from area code 97 to 973.
• 18 October 1997: 532 customers of Lamarque (Rio Negro province) changed from area code 7 to 97.
• 18 October 1997: 375 customers in San Patricio del Chanar (Neuquen Province) changed from area code 85 to 855. Numbers of other customers in this town remain unchanged.
• 15 October 1997: Arata, La Pampa Province area code 8 changed to 98.
• 14 October 1997: New digital switch installed in Fraga Town, Coronel Pringles District, San Luis Province. 92 lines in area code 657 (subscriber numbers 98000-98091) were estabilished.
• 1996: New dial service in Los Antiguos +54 963.
• 1996: Numbering change/direct dial access in Los Campamentos, Mendoza +54 623 820xx.

Other Information

Regulator is Comisión Nacional de Comunicaciones.

Numbering information link (via ITU).