This free Mexican phone number checker shows whether a number is valid.
A Mexican phone number checker tells you whether a number is real, which means it follows Mexico's numbering rules and is assigned. Enter a +52 number above and 1Lookup's free checker returns valid or invalid in seconds, with the line type and country, checked against Mexico's numbering plan.
Pick the country, then enter the number without the country code.
Free & rate-limited. No signup required to try.
- Country code
- +52
- Mobile numbers and landlines
- 10 digits after +52, and the first digit alone does not show which one a number is
- Written at home
- 222 123 4567
- Written for apps and SMS
- +522221234567
- Dialed from the US
- 011 52 222 123 4567
A Mexican phone number is +52 followed by 10 digits, whether it is a mobile or a landline.
Written with the country code
- +52Country code
- 2First digit
- 22 123 45679 more digits
The +52 comes before the number and is dropped when you dial inside Mexico.
A Mexican phone number checker reads a number's format first and then checks it against Mexico'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 222 123 4567, or paste it with +52.
- Its format is checkedEach type of number has its own rules. A number needs 10 digits after +52, whether it is a mobile or a landline.
- 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 Mexico'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 Mexican number has 10 digits after +52, and the first digit alone does not show whether it is a mobile or a landline.
These lengths come from the numbering data for Mexico. 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 +52 | Written at home |
|---|---|---|
| Mobile or landline | 10 | 222 123 4567 |
Three common mistakes make a Mexican number fail the check, and each one is quick to fix.
Repeating +52 adds digits.
Write +52 222 123 4567 once, with the country code at the front.
Typing too few or too many digits makes a number invalid.
A number has 10 digits after +52, whether it is a mobile or a landline. With 9 or 11 it 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 Mexico selected for a +52 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 Mexican phone numbers.
How do I check if a Mexican phone number is valid?
Enter the number in the box above with Mexico 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 222 123 4567, or in full as +52 222 123 4567.
How many digits is a Mexican phone number?
A Mexican number has 10 digits after +52, whether it is a mobile or a landline. Written at home it looks like 222 123 4567.
Can I tell a Mexican mobile number from a landline by its digits?
Not by the first digit alone. In Mexico, mobile and landline numbers can start with the same digit and have the same number of digits, so the digits do not tell them apart. The line type in the result does.
How do I write a Mexican number for an app or an SMS tool?
Use the E.164 form: a plus sign, 52, then the number and no spaces, such as +522221234567.
Does the Mexican 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 Mexican number is active?
No. Valid means the number is real, correctly written for Mexico 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 Mexican 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 Mexico City, Guadalajara and Monterrey?
The codes are 55 for Mexico City, 33 for Guadalajara and 81 for Monterrey. From abroad you dial +52 and then the code, so Mexico City is +52 55. The area code is part of the digits of a landline number.
You can check numbers from other countries on their own pages.
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These free tools answer the next question about a number.
- The +52 country code pageHow to dial Mexico, 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.