China phone number validator
How the phone number format works
- Format
- China phone number in national or international (+86) format
- Example
- +8613123456789
Things to watch for
- Accepts national or international (E.164, e.g. +86...) format
- Validated with Google's libphonenumber; confirms the number is possible/valid for this country, not that it is currently assigned or reachable
^[+]?[0-9 ()\-]{6,}$A Chinese mobile phone number is always 11 digits starting with 1 — for example 13123456789, or +8613123456789 in full international form — with the second digit narrowing down which operator range issued it. That fixed-length, single-prefix design makes mobile numbers the most common thing to validate in China, whether for an e-commerce checkout, a WeChat-linked signup, or an SMS verification flow.
How this validator works
Enter the number in local form or full +86 international form; this tool checks the 11-digit length and the 1-prefix mobile pattern using Google’s libphonenumber library, entirely client-side in your browser, with nothing sent to a server. Landline numbers follow a different structure — a city area code (Beijing’s is 10, Shanghai’s is 21) plus a local number, with a domestic trunk 0 that gets dropped when the +86 country code is added — and the validator checks that structure separately rather than assuming every number is 11 digits starting with 1.
What a pass doesn’t tell you
A pass confirms the number matches a real Chinese mobile or landline pattern — it does not confirm the SIM is active, real-name registered, or reachable. China’s carriers and regulator are the only source for that.
Scope: this is a structural format check, useful for catching a wrong digit count or an invalid mobile prefix before a number reaches a form — not a registration or line-status lookup.
Content last reviewed 2026-07-07.
phone number FAQ
Why do all Chinese mobile numbers start with the digit 1?
China's mobile numbering plan reserves the entire 1-prefix block for mobile numbers — the second digit (3 through 9) further identifies the operator range the number was issued from. Landline numbers, by contrast, are built from a city area code plus a local number and never start with 1 in the same way.
Does a valid check mean the Chinese mobile number is registered under real-name verification?
No. It only confirms the 11 digits match a real Chinese mobile numbering pattern. China requires real-name registration for every SIM, but this tool has no access to that registry — it cannot confirm the number is active, registered, or tied to a verified identity.
How does a Chinese landline number differ in length from a mobile number?
A mobile number is always 11 digits (1 + 10 more). A landline pairs a city area code — 10 for Beijing, 21 for Shanghai — with a local number, and the combined length varies depending on how long that area code is, unlike the fixed 11-digit mobile format.