Australia phone number validator
How the phone number format works
- Format
- Australia phone number in national or international (+61) format
- Example
- +61412345678
Things to watch for
- Accepts national or international (E.164, e.g. +61...) 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,}$An Australian phone number is 10 digits in local form either way — a mobile as 04xx xxx xxx, or a landline as a single-digit area code (02, 03, 07, or 08) plus an eight-digit local number. That consistency makes Australian numbers easy to validate, but also easy to get subtly wrong when converting to the +61 international format businesses need for SMS platforms or international bookings.
How this validator works
Enter the number in local form (0412 345 678) or full international form (+61412345678); this tool checks the digit count and prefix against Australia’s real numbering-plan rules using Google’s libphonenumber library, entirely client-side. The rule to remember: Australia’s leading 0 is a national trunk prefix, dropped the moment the +61 country code is added — it never appears twice. A mobile keeps its 04 prefix minus the leading zero (+61 4xx xxx xxx); a landline keeps its area code minus the leading zero (+61 2… for Sydney, for example).
What a pass doesn’t tell you
A pass confirms the number matches a real Australian mobile or landline pattern — it does not confirm the number is currently assigned, connected, or ported to the carrier you expect. Only a telco or a paid number-verification API can tell you that.
Scope: use this to catch a dropped digit, a missing area code, or a leftover 0 after +61 before the number goes into a form, a CRM, or an SMS send — not as proof the number rings through.
Content last reviewed 2026-07-07.
phone number FAQ
Do I need to drop the leading 0 when entering an Australian number?
Only if you're typing the +61 international form. 0412 345 678 is correct domestically; +61412345678 is the same number internationally, with the leading 0 removed. Typing +610412345678 (0 kept after +61) will fail validation — that's the single most common mistake.
Does a valid check confirm the Australian mobile number is active?
No. It confirms the number has the right shape for an Australian mobile — 04 followed by eight digits — not that it's currently connected to a SIM or that the person is reachable. Numbers get recycled and disconnected regardless of format validity.
What's the difference between an Australian mobile and landline number shape?
Mobiles always start with 04 (10 digits total: 04xx xxx xxx). Landlines pair a single-digit area code — 02 (NSW/ACT), 03 (VIC/TAS), 07 (QLD), or 08 (WA/SA/NT) — with an eight-digit local number, also 10 digits total including the area code's leading 0.