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Australia Passport Number validator
How the passport number format works
- Format
- 1 or 2 uppercase letters followed by 7 digits
- Example
- N1234567
Things to watch for
- Format-only check — does not confirm the passport was actually issued, is unexpired, or is currently valid
- The leading letter(s) denote the passport series/type (ordinary passports commonly use a 2-letter "P" series prefix); this check accepts the general 1-or-2-letter + 7-digit shape rather than an exhaustive list of valid prefixes
- Validation runs entirely in your browser — the number you enter is never transmitted or stored
^[A-Z]{1,2}[0-9]{7}$An Australian passport number is 1 or 2 uppercase letters followed by 7 digits, e.g. N1234567, issued by the Australian Passport Office, part of the Department of Foreign Affairs and Trade (DFAT). The leading letters denote the passport’s series or type — ordinary passports commonly carry a 2-letter series beginning with P — though DFAT hasn’t published an exhaustive public list of every valid prefix.
What this checker verifies
This tool confirms the input is one or two letters followed by exactly 7 digits, which catches an obvious typo like a missing digit or a stray character carried over from a scan of the passport’s data page or its machine-readable zone (MRZ).
What a pass doesn’t confirm
Because DFAT hasn’t published the complete set of valid series prefixes, this checker accepts the general 1-or-2-letter shape rather than validating against a specific list — and the format carries no check digit this tool can recompute either way. A pass doesn’t confirm the Australian Passport Office actually issued that number, that the passport is unexpired, or that it belongs to a real traveler, and nothing you type is decoded or stored.
Scope: format-only validation, running entirely in your browser.
Content last reviewed 2026-08-09.
passport number FAQ
What does an Australian passport number look like?
One or two uppercase letters followed by 7 digits, e.g. N1234567, issued by the Australian Passport Office within the Department of Foreign Affairs and Trade (DFAT).
What do the leading letters mean?
They denote the passport series or type — ordinary passports commonly use a 2-letter series beginning with P — but this checker accepts the general 1-or-2-letter shape rather than an exhaustive list of valid series codes.
Does this confirm the passport is valid?
No. It only checks the shape. Confirming the passport was actually issued or is currently valid requires DFAT's own records.