Which Country Is This Number From?
Phone number validator: paste any number to see its country, whether it's valid, and whether it's mobile or landline.
Last updated: September 25, 2026
Enter with or without the + sign. Examples: +44 7911 123456, 919876543210
Which Country Is This Number From?
The first 1–3 digits after the + sign are the country code, and they identify the country instantly: +1 is the US and Canada, +44 the UK, +91 India. Paste the full number into the validator above and it matches the prefix against all 240+ international dialing codes for you.
| Code | Country | Code | Country |
|---|---|---|---|
| +1 | 🇺🇸 US / 🇨🇦 Canada | +7 | 🇷🇺 Russia / 🇰🇿 Kazakhstan |
| +44 | 🇬🇧 United Kingdom | +49 | 🇩🇪 Germany |
| +91 | 🇮🇳 India | +34 | 🇪🇸 Spain |
| +92 | 🇵🇰 Pakistan | +234 | 🇳🇬 Nigeria |
| +62 | 🇮🇩 Indonesia | +63 | 🇵🇭 Philippines |
| +86 | 🇨🇳 China | +880 | 🇧🇩 Bangladesh |
This works for WhatsApp numbers too — a WhatsApp contact shows the same international number, so the digits after the + tell you the country even if the profile hides everything else.
No + prefix? Then there is no reliable way to tell — 10 bare digits could be a US number or a national-format number from dozens of countries. Ask for the international format, then check it here, browse the full country code list.
How International Phone Number Validation Works
International phone number validation checks a number against the E.164 standard: a + sign, a 1–3 digit country code, and the national number — 7 to 15 digits in total, with no leading zero after the country code. If any of those rules fail, the number cannot exist on any network.
Country Detection
We identify the country from the phone code prefix (E.164 format).
Length Check
Each country has specific number length rules we verify against.
Type Detection
Mobile and landline numbers often have different prefix patterns.
Building validation into software? Developers apply these same E.164 rules with Google's libphonenumber library or a regex. If you just need to check numbers rather than code the checks, this tool applies them instantly.
Valid Number Rules for the Most-Checked Countries
These are the patterns the validator applies for the countries people check most. Digits shown are after the country code, with no leading 0:
| Country | Digits | Mobile numbers look like |
|---|---|---|
| 🇺🇸🇨🇦 US / Canada (+1) | 10 | No mobile prefix — any area code; first digit of area code is 2–9 |
| 🇬🇧 UK (+44) | 10 | Start with 7 (e.g. +44 7911 …) |
| 🇮🇳 India (+91) | 10 | Start with 6, 7, 8 or 9 |
| 🇮🇩 Indonesia (+62) | 9–12 | Start with 8 (e.g. +62 812 …) |
| 🇵🇰 Pakistan (+92) | 10 | Start with 3 (e.g. +92 300 …) |
| 🇧🇩 Bangladesh (+880) | 10 | Start with 1 (e.g. +880 17 …) |
| 🇳🇬 Nigeria (+234) | 10 | Start with 70, 80, 81, 90 or 91 |
| 🇵🇭 Philippines (+63) | 10 | Start with 9 (e.g. +63 917 …) |
Valid ≠ reachable. Format validation confirms a number could exist — it cannot tell you the line is live, in service, or belongs to who you think. The only definitive check is placing a call. A one-minute call from the browser dialer costs about a cent to most countries and settles it.
Frequently Asked Questions
How do I know if a phone number is valid?
A valid phone number has the correct country code, proper length for that country, and follows the national numbering format. Our validator checks all these factors to determine if a number is likely valid.
What is the E.164 phone number format?
E.164 is the international telephone number format that includes a + sign, country code, and national number. For example, +1 415 555 1234 for a US number. This format ensures numbers can be dialed from anywhere in the world.
Can you tell if a phone number is mobile or landline?
In many countries, certain number ranges are reserved for mobile phones. Our tool uses these patterns to make an educated guess about whether a number is mobile or landline, though this is not always 100% accurate due to number portability.
Does this tool verify if the number is in service?
No, this tool validates the format and structure of the phone number. It cannot determine if the number is currently active or in service. For that, you would need to actually place a call to the number.
How do I check which country a phone number is from?
Enter the number with its + prefix — the country code identifies it instantly (+1 US/Canada, +44 UK, +62 Indonesia, +91 India, +92 Pakistan). If you only have the prefix, use our country code lookup.
Which country is this phone number from?
The country code — the 1–3 digits after the + — identifies the country: +1 is US/Canada, +44 UK, +62 Indonesia, +91 India, +92 Pakistan. Enter the full number above and the validator names the country.
How do I validate an international phone number?
Check it against the E.164 rules: it must start with + and a valid 1–3 digit country code, contain 7–15 digits in total, and match the national length for that country — a UK mobile is +44 plus 10 digits, an Indian mobile +91 plus 10. This validator applies all three checks instantly.
Why does WhatsApp say a number is invalid?
Usually a formatting issue: WhatsApp needs the full international format with no leading zero after the country code. +44 07911… fails; +44 7911… works. Validate the number here first — if it passes and WhatsApp still rejects it, the person likely doesn't have WhatsApp registered on that number.
Can I check if a number is active without calling it?
Not reliably for free. Carrier-level HLR lookups exist but cost money and give stale results for ported or roaming numbers. The honest answer: a short call is the only definitive test — from the browser it costs about a cent and you'll know within one ring.