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Portugal +351

International code · Europe

How to dial

Calling from abroad +351 912 345 678

Dial +351, then the local number. Generate the full number →

Calling a mobile locally 912 345 678

No trunk prefix — dial local and long distance numbers directly.

Mobile length
9 digits
Mobile prefixes
9XX XXX XXX
International format
+351 9XX XXX XXX
Domestic trunk
(none)

Sign-up availability

What to expect when signing up for these services with a physical SIM from this country:

ChatGPT Works
Claude Works
WhatsApp Works
Telegram Works
LINE Works
WeChat Works
X Works
TikTok Works
Gemini Works

Applies to every platform: VoIP / virtual numbers and heavily-reused number pools get rejected. Physical SIM only.

Checked 2026-09-12. Platform region policies and number-range allocations change — always confirm against each platform’s official supported-regions list and the carrier’s notices.
2 sources
www.anthropic.com/supported-countriessupport.google.com/gemini?p=gemini_web_availability

How to read a number

+351912345678

+351Country code
Portugal.
9Start of the mobile number
Portuguese mobile numbers are always 9 digits and start with 9. Portugal has no national trunk prefix: you dial the same 9 digits inside the country, with no 0 in front.
12345678Remaining 8 digits
Portugal allows porting, so the digits do not tell you which operator the SIM is on now.

Dialled nationally as 912 345 678.

This section checked 2026-09-18.
1 sources
www.anacom.pt/render.jsp?categoryId=324335

Number ranges & quality

RangeTypeNotes
9xx (9 digits) Mobile carrier Portuguese mobile numbers start with 9 (MEO / NOS / Vodafone).
Intl SMSStable
Virtual-number riskLow
ID requiredPrepaid SIMs generally need no ID for now; a mandatory identification bill was sent to Parliament in May 2026 and had not passed as of September 2026.

Physical SIMs can sign up without issues.

Carriers & prefixes

Mobile prefixes by carrier.

Number portability applies — a prefix only shows the original carrier.

Porting rules in full

Porting is available under rules set by the regulator ANACOM: the port happens on the date you agree with the new operator and must take effect no later than one business day after it. During the switch you may be without service on both networks for up to 3 hours (the "porting window"), and the new operator must tell you when that window is at least 12 hours in advance. Delays are compensated: for consumers the new operator pays €3 per number for each full day of delay. So Portuguese prefixes only show who originally issued a number; we could not retrieve ANACOM’s number-allocation data directly, and this site will not publish an incomplete prefix table.

User share comes from ANACOM (the telecom regulator), as of 2025-12. It shows how widely each operator is used — not how good its signal or service is. Official data →

  • MEO Mobile carrierVeteran
    launched 1992 — as TMN’s GSM network
    User share

    Owned by Altice Portugal.

  • NOS Mobile carrier
    User share

    According to ANACOM, it had the most 5G base stations in Portugal at the end of 2024 (4,786).

  • Vodafone Mobile carrierVeteran
    launched 1992 — as Telecel
    User share

    Vodafone Portugal.

  • DIGI Mobile carrierNewcomer
    launched 2024
    User share

    The new fourth operator: selling in Portugal since 4 November 2024, part of the Romanian Digi Communications group. By ANACOM’s count it had 2,130 5G base stations and was present in 240 municipalities by the end of 2024 — many older guides still say Portugal has only three operators.

This section checked 2026-09-18.
8 sources
www.anacom.pt/render.jsp?contentId=899439www.anacom.pt/render.jsp?contentId=1459486www.anacom.pt/render.jsp?categoryId=324335www.anacom.pt/render.jsp?contentId=1802979www.anacom.pt/render.jsp?contentId=1802013www.digi.pten.institutional.meo.pt/meo/historywww.vodafone.pt/press-releases/2022/10/vodafone-celebra-30-anos-de-comunicacoes-em-portugal.html

SIM cards & keeping a number

Portugal still sells anonymous prepaid SIMs. In May 2026 the government approved a draft law making prepaid identification mandatory and sent it to Parliament, with a one-year transition for existing cards (reported by Público and others); no approval was found as of September 2026.

Read more

Keeping a number depends on the tariff type. MEO’s prepaid terms split tariffs in two: with mandatory top-ups, once validity lapses the card can only receive calls for 90 more days, then expires; without mandatory top-ups, one non-free call made or received every 90 days keeps it active. Vodafone and NOS offer similar no-mandatory-top-up tariffs (search excerpts only, not listed separately).

MEO prepaid (no-mandatory-top-up tariff)

Number-keeping SIM
Network
MEO’s own network (MNO)
Price
SIM price varies; on tariffs without a maintenance fee, €1.80 is charged as an “inactivity fee” after 30 days with no traffic, payment or top-up (notified by SMS)
Keeping the number
MEO prepaid terms: on no-mandatory-top-up tariffs, make or receive one non-free call every 90 days to stay active. Without that, the card becomes receive-only for at least 30 days (extendable up to 180 days if it keeps receiving paid traffic), then expires and remaining balance and points are lost. Mandatory-top-up tariffs become receive-only for 90 days after validity lapses, then expire; a top-up within 90 days reactivates
ID check
Generally no ID for now. On 29 May 2026 the government approved a legislative authorisation bill requiring prepaid users to be identified; it still has to pass Parliament, and no published decree was found when we checked (2026-11-01)
SMS & calls
A normal Portuguese number. Per third-party guides, MEO prepaid roaming outside Europe is enabled after €15 of cumulative top-ups, charged from balance; cost of receiving SMS in China not verified

Pros

  • No ID needed for now
  • One non-free call every 90 days keeps it

Watch out

  • €1.80 is charged after 30 days of inactivity, so an idle card pays every month
  • If the ID law passes, existing cards must be registered within the transition period
  • Cost of receiving SMS in China not verified

Where to buy: meo.pt

6 sources
www.publico.pt/2026/05/30/economia/noticia/governo-vai-obrigar-operadoras-limitar-fraudes-telefonicas-cartoes-prepagos-2176596conteudos.meo.pt/meo/Documentos/Condicoes-Utilizacao/Condicoes-Utilizacao-Tarifarios-Pre-Pagos-Condicoes-Gerais.pdfwww.publico.pt/2026/05/30/economia/noticia/governo-vai-obrigar-operadoras-limitar-fraudes-telefonicas-cartoes-prepagos-2176596www.sabado.pt/dinheiro/detalhe/governo-obriga-operadoras-a-bloquear-fraudes-e-a-identificar-utilizadores-dos-pre-pagostugatech.com.pt/t84446-novo-plano-do-governo-bloqueia-mensagens-falsas-e-obriga-a-identificar-cartoes-pre-pagosselectra.pt/tv-net-voz/operadoras/meo/roaming

From user and blogger reports; platform risk rules change often — treat as a guide only. This section checked 2026-09-16.

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