Home phone number Kazakhstan
Kazakhstan Phone Number validator
How the phone number format works
- Format
- Kazakhstan phone number in national or international (+7) format
- Example
- +77710009998
Things to watch for
- Accepts national or international (E.164, e.g. +7...) 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 Kazakh phone number shares its +7 country code with Russia — a holdover from the Soviet-era numbering system that neither country has split apart since independence. The two are told apart not by the country code but by the 10-digit national number that follows it: Kazakhstan has its own reserved mobile and geographic prefix ranges within that shared +7 zone, separate from Russia’s. A form that assumes every +7 number is Russian will mislabel Kazakh customers.
How this validator works
Enter the number domestically (8 771 000 99 98) or internationally (+77710009998); this tool checks the full 10-digit number against Kazakhstan’s specific numbering ranges using Google’s libphonenumber, entirely in your browser — not just the +7 prefix, which alone can’t distinguish the two countries. As in Russia’s system, the domestic trunk digit here is 8, not 0, and that 8 is replaced by +7 rather than removed and re-added.
What a pass doesn’t tell you
A pass confirms the 10 digits after +7 fall inside a range assigned to Kazakhstan and match a valid mobile or landline pattern — it doesn’t confirm the line is active, since that needs a carrier lookup this tool doesn’t perform.
Scope: use this to confirm a +7 number is genuinely a Kazakh range and correctly formatted before it reaches a form — not as proof the number is reachable.
Content last reviewed 2026-07-09.
phone number FAQ
Why do Kazakhstan and Russia share the same +7 country code?
Both countries inherited the Soviet Union's single +7 numbering zone and never split it after independence. The 10-digit national number that follows +7 is what separates them — specific prefix ranges are reserved for Kazakhstan and others for Russia, so +7 alone doesn't tell you which country a number belongs to.
How can I tell a Kazakh mobile from a Russian one by the digits?
Kazakh mobile numbers use their own reserved prefix ranges within the shared +7 zone, distinct from Russian mobile prefixes. This validator checks the full 10-digit number against Kazakhstan's specific ranges via Google's libphonenumber, rather than just confirming it starts with +7.
What's the domestic trunk digit for a Kazakh number?
Like Russia, Kazakhstan uses 8 as the domestic trunk digit rather than 0 — a mobile is dialed as 8 771 000 99 98 locally, with that leading 8 replaced by +7 in international form, not stripped and re-added.