This free Brazilian phone number checker shows whether a number is valid.
A Brazilian phone number checker tells you whether a number is real, which means it follows Brazil's numbering rules and is assigned. Enter a +55 number above and 1Lookup's free checker returns valid or invalid in seconds, with the line type and country, checked against Brazil's numbering plan.
Pick the country, then enter the number without the country code.
Free & rate-limited. No signup required to try.
- Country code
- +55
- Mobile numbers
- 11 digits after +55
- Landlines
- 10 digits after +55, such as +55 11 XXXX XXXX
- Written at home
- (11) 96123-4567
- Written for apps and SMS
- +5511961234567
- Dialed from the US
- 011 55 11 96123 4567
A Brazilian mobile number is +55 followed by 11 digits, and a landline has 10 digits.
Written with the country code
- +55Country code
- 1First digit
- 1 96123 456710 more digits
The +55 comes before the number and is dropped when you dial inside Brazil.
A Brazilian phone number checker reads a number's format first and then checks it against Brazil's numbering plan.
This is the path one check takes. A number can be written correctly and still not be assigned to anyone, so the format check alone is not the answer.
- You enter the numberType it the way it is written at home, such as (11) 96123-4567, or paste it with +55.
- Its format is checkedEach type of number has its own rules. A mobile needs 11 digits after +55 and a landline needs 10 digits.
- It is checked against the numbering planNumbers outside the US and Canada are checked against the numbering plan of their country, which for this page is Brazil's.Nothing is sent to the number, so it never rings and its owner is never told.
- You see valid or invalidWith the line type and country in a few seconds, and the carrier or network where one is listed.
A Brazilian mobile number has 11 digits after +55 and a landline has 10 digits, and neither the length nor the first digit alone always shows which one it is.
These lengths come from the numbering data for Brazil. A few older mobile numbers have 10 digits, the same as a landline. Mobile and landline numbers can start with the same digit, so the first digit alone does not give the type, and the line type in the result does.
| Number type | Digits after +55 | Written at home |
|---|---|---|
| Mobile | 11 | (11) 96123-4567 |
| Landline | 10 | (11) XXXX-XXXX |
Three common mistakes make a Brazilian number fail the check, and each one is quick to fix.
Repeating +55 adds digits.
Write +55 11 96123 4567 once, with the country code at the front.
Typing too few or too many digits makes a number invalid.
A mobile number has 11 digits after +55 and a landline has 10 digits. With fewer than 10 or more than 11 a number cannot be valid, so look for a missing or doubled digit.
Leaving the wrong country selected changes how the number is read.
The checker reads a number by the rules of the country selected above, so keep Brazil selected for a +55 number. Paste a number with its + and country code and the country is read from the number itself.
These are the questions people ask most about checking Brazilian phone numbers.
How do I check if a Brazilian phone number is valid?
Enter the number in the box above with Brazil selected. The free checker returns valid or invalid in seconds, with the line type and country. Type it the way it is written at home, such as (11) 96123-4567, or in full as +55 11 96123 4567.
How many digits is a Brazilian phone number?
A mobile number has 11 digits after +55. A landline has 10 digits after +55, such as +55 11 XXXX XXXX.
Can I tell a Brazilian mobile number from a landline by its digits?
Not by the first digit alone, because mobile and landline numbers can start with the same digit. A mobile has 11 digits after +55 and a landline has 10 digits, but the length is not always enough. A few older mobile numbers have 10 digits, the same as a landline. The line type in the result gives the type.
How do I write a Brazilian number for an app or an SMS tool?
Use the E.164 form: a plus sign, 55, then the number and no spaces, such as +5511961234567.
Does the Brazilian phone number checker show the carrier?
It shows the carrier or network where one is listed. Numbers outside the US and Canada are checked against the numbering plan of their country rather than live carrier data, so some come back with no carrier name.
Does valid mean the Brazilian number is active?
No. Valid means the number is real, correctly written for Brazil and assigned. Whether a line is switched on and reachable right now is a different question, and the free HLR lookup answers it.
Can I check a whole list of Brazilian phone numbers?
Yes. This free tool checks one number at a time. A 7-day free trial opens CSV upload and the API, at 1 credit a number.
Does the person know I checked their number?
No. The check reads records only. No call or text goes to the number, so its owner is never told.
What are the landline area codes of São Paulo, Rio de Janeiro and Brasília?
The codes are 11 for São Paulo, 21 for Rio de Janeiro and 61 for Brasília. From abroad you dial +55 and then the code, so São Paulo is +55 11. The area code is part of the digits of a landline number.
You can check numbers from other countries on their own pages.
- +61Australian phone number checker
- +1Canadian phone number checker
- +44UK phone number checker
- +353Irish phone number checker
- +91Indian phone number checker
- +65Singapore phone number checker
- +234Nigerian phone number checker
- +64New Zealand phone number checker
- +60Malaysian phone number checker
- +66Thai phone number checker
- +63Philippine phone number checker
- +27South African phone number checker
- +254Kenyan phone number checker
- +233Ghanaian phone number checker
- +971UAE phone number checker
- +92Pakistani phone number checker
- +880Bangladeshi phone number checker
- +94Sri Lankan phone number checker
- +852Hong Kong phone number checker
- +256Ugandan phone number checker
- +255Tanzanian phone number checker
- +260Zambian phone number checker
- +356Maltese phone number checker
- +357Cypriot phone number checker
- +31Dutch phone number checker
- +49German phone number checker
- +62Indonesian phone number checker
- +966Saudi phone number checker
- +251Ethiopian phone number checker
- +962Jordanian phone number checker
- +52Mexican phone number checker
- +34Spanish phone number checker
- +33French phone number checker
- +39Italian phone number checker
- +81Japanese phone number checker
- +82South Korean phone number checker
- +84Vietnamese phone number checker
- +20Egyptian phone number checker
- +90Turkish phone number checker
- +972Israeli phone number checker
- +48Polish phone number checker
- +54Argentine phone number checker
- +57Colombian phone number checker
- +56Chilean phone number checker
- +51Peruvian phone number checker
- +32Belgian phone number checker
- +41Swiss phone number checker
- +46Swedish phone number checker
- +351Portuguese phone number checker
- +58Venezuelan phone number checker
- +593Ecuadorian phone number checker
- +502Guatemalan phone number checker
- +1Dominican phone number checker
- +591Bolivian phone number checker
- +598Uruguayan phone number checker
- +506Costa Rican phone number checker
- +507Panamanian phone number checker
These free tools answer the next question about a number.
- The +55 country code pageHow to dial Brazil, the time there now and the landline places.
- HLR lookupCheck whether a mobile number is switched on and reachable right now.
- Line type lookupSee whether a number is a mobile, a landline or VoIP.
- Carrier lookupFind the carrier or network behind a number.
- Phone validator for any countryThe same check with the country picker open to every country.
- Phone validation APIRun the same check from your own software, one request per number.
Sources: Google's libphonenumber numbering data for lengths, mobile starts and landline starts, as of September 24, 2026; the ITU list of country codes.