Exit code and trunk prefix are not a pair you dial together
The exit code is yours
The exit code is the international prefix where the call starts. It changes with the caller and is not stored in the contact. + stands in for it. See international dialling format.
On this table, France, Spain, Brazil, Mexico, and Malaysia use 00. Turkey's 00 is the ITU list of 15 December 2011, not a Turkish regulator page. Brazil's 00 may be followed by an optional carrier code, written XX, which is not part of the number. Indonesia's commonly used code is 001. From the United States, for a call outside the North American Numbering Plan, it is 011.
The trunk prefix is theirs
It is dialled inside the destination country, before the area code, when the call leaves the local area. ITU-T E.164 section 7.3.2, as excerpted for the February 2026 recommendation, says it is not part of the national significant number and must not be dialled after the country code. ITU recommends a single digit, preferably 0. Drop a leading 0 only when that country defines it as the trunk prefix. Spain and Mexico have none. The United States has no trunk 0. France, Brazil, Malaysia, Turkey, and Indonesia do. Brazil also drops the carrier code. The area code stays.
How to read an empty cell
An empty cell means this page will not stand behind a figure. It does not mean there is no rule. Use the country page. Do not fill the gap from an older list.
Comparison table
Notes sit under the table, not in the cells.
| Country | Exit code | Trunk prefix | Drop the trunk prefix after the country code? | National length |
|---|---|---|---|---|
| France | 00 | 0 | Yes. Drop the 0. | 9 significant digits on an ordinary number. Domestic dialling is 10 digits, including the 0. |
| Spain | 00 | None | No trunk digit to drop. Do not drop a leading 8 or 9. | 9 digits for the ordinary national number. |
| Brazil | 00, then an optional two-digit carrier code (XX) | 0, plus that optional carrier code | Yes. Drop the 0 and the carrier code. Keep the area code. | Not one length. After the area code: landline 8 digits, first digit 2–6; mobile 9 digits, starting with 9. |
| Mexico | 00 | None | No trunk digit to drop. Do not add 1 after +52. | 10 digits. |
| Malaysia | 00 | 0 | Yes. Drop only the 0. | Mobiles: 9 or 10 digits after +60. Landlines: 8 or 9. |
| Turkey | 00 | 0 | Yes. Drop the 0. | 10 digits. |
| Indonesia | 001 (commonly used) | 0 | Yes. Drop only the 0. | |
| United States | 011 | No trunk 0. Domestic long-distance access is 1, and it is not part of the number. | Do not drop a digit. Do not dial that 1 after +1. | 10 digits. |
Notes:
- France: 14-digit machine-to-machine numbers beginning 0700 exist. "Nine" is not every French range.
- Spain: 13-digit machine-to-machine numbers under 590 exist. "Nine" is the ordinary plan. Mobiles begin 6 or 71–74. Fixed numbers begin 8 or 9.
- Brazil: do not treat the ITU 2011 list's single length figure as the current length.
- Mexico: the trunk prefix in the ITU list of 15 December 2011 is not the plan in force. Do not revive it, and do not revive 044 or 045. The first digit does not tell a mobile from a landline.
- Malaysia: do not publish the ITU 2011 length range as the current length.
- Turkey: exit 00 and trunk 0 are from the ITU list of 15 December 2011, not from a current Turkish regulator page read for this page. Official name: Republic of Türkiye.
- Indonesia: the blank is intentional. Mobile length is not fixed. The ITU 2011 length range is not a mobile length and is not used in the cell. ITU 2011 also lists 008; that is not the exit code this table states.
- United States: 011 is the exit code for a call to a country outside the NANP. A call to Canada or most Caribbean NANP destinations is dialled as a domestic long-distance call, 1 plus the ten digits, not 011.
How to use a row
Read the exit-code cell of the country you are in, then the trunk, drop, and length cells of the country you are calling. The country code is on the destination page. X is a placeholder, not a subscriber number.
Example: from the United States the exit cell is 011; a French trunk 0 still drops. The United Kingdom is not a row. Its exit code 00 is on the United Kingdom page.
Worked sequences: United Kingdom from the United States, United States from the United Kingdom, United States from Brazil, indexed at country dialling walkthroughs.
Saving the number
Do not save the exit code or a Brazilian XX. Apply only the destination drop cell. Storage: forms, CRM, and SMS. Do not store a carrier code as destination digits (formatting errors).
Notes that do not fit a cell
Brazil has a carrier code, and it is not the exit code
Exit 00 may be followed by XX, then the country code. XX is not part of the number. Drop the 0 and XX; keep the area code. After the area code, the live page gives landlines 8 digits and mobiles 9 digits starting with 9. Landlines start 2–6 under Anatel Resolution 749/2022, not re-opened here.
Mexico is not the 2011 row
IFT comunicado 34/2019 (16 July 2019) is the source for the plan in force: from 3 August 2019, national dialling is ten digits, the long-distance trunk prefix is gone, and 044 and 045 are gone. That IFT text does not restate the exit code or the extra 1. Exit 00 is the live Mexico page plus the ITU list of 15 December 2011. No extra 1 after +52 is the live page plus the FCC tip sheet updated 7 May 2024. The first digit, 2 to 9, is a numbering area.
Indonesia's second prefix
The 2011 list also has 008. This table does not state 008 as the exit code. The length cell is blank because mobile length is not fixed: a three-digit network code starts with 8, and each operator sets the rest. Drop only the 0.
Turkey's prefix cells are the 2011 list
No Turkish regulator is cited. The row name is Turkey. Exit 00 and trunk 0 are only the ITU list of 15 December 2011, as the note under the table says. Drop the 0: 0XXX XXX XX XX becomes +90 XXX XXX XX XX.
Malaysia's 0 is the only digit that drops
No Malaysian regulator page was opened. Drop only the 0: 01X XXX XXXX becomes +60 1X XXX XXXX. No area-code example. See Malaysia.
The United States has no trunk 0
The long-distance 1 is not dialled after +1. The FCC sheet updated 7 May 2024 is the source for dialling 011, and for reaching Canada and most Caribbean NANP destinations as 1 plus ten digits instead. +1 is shared: shared country codes.
Questions
What is the difference between an exit code and a trunk prefix?
The exit code is the international prefix where you are calling from. Dial it before the country code, or use + instead. The trunk prefix is a domestic digit, often 0. ITU-T E.164 says it is not dialled after the country code.
Which of these countries use 00, and which use something else?
France, Spain, Brazil, Mexico, Malaysia, and Turkey use 00. Brazil may add XX, which is not part of the number. Indonesia's commonly used exit code is 001. From the United States, dial 011 outside domestic long-distance dialling. Turkey's 00 is the ITU list of 15 December 2011.
Do I drop a leading 0 after the country code?
Only when that country defines it as the trunk prefix. Use the drop column. Spain, Mexico, and the United States have no trunk 0 to remove. A Malaysian mobile keeps the 1 after the 0.
Sources
- ITU-T E.164: The international public telecommunication numbering planInternational Telecommunication Union. Verified 2026-07-19.
- Annex to ITU Operational Bulletin No. 994: Dialling procedures (international prefix, national (trunk) prefix and national (significant) number)International Telecommunication Union. Verified 2026-10-03.
- La numérotationArcep. Verified 2026-10-03.
- Plan Nacional de Numeración Telefónica (Descripción del Plan de Numeración Telefónica)Ministerio para la Transformación Digital y de la Función Pública. Verified 2026-10-03.
- BOE-A-2010-5251, 12 March 2010Boletín Oficial del Estado. Verified 2026-10-03.
- A partir del 3 de agosto, México tendrá una nueva forma de marcación telefónica (Comunicado 34/2019)Instituto Federal de Telecomunicaciones (now Comisión Reguladora de Telecomunicaciones). Verified 2026-10-03.
- International CallsFederal Communications Commission. Verified 2026-10-03.
- Resolução Anatel nº 749, de 15 de março de 2022 (Regulamento Geral de Numeração)Anatel. Verified 2026-10-03.
See our editorial and sourcing methodology.