Home Ταχυδρομικός Κώδικας (TK) Greece
Greece Ταχυδρομικός Κώδικας (TK) validator
How the Ταχυδρομικός Κώδικας (TK) format works
- Format
- 5 digits, conventionally written as 3 digits + 2 digits
- Example
- 10563
Things to watch for
- Format-only check — does not confirm the TK actually exists
- Always exactly 5 digits; the customary space after the 3rd digit (e.g. 105 63) is stripped before this validator checks it
- The leading digit marks one of a small number of broad geographic regions, not a single city
^[0-9]{5}$A Greek Ταχυδρομικός Κώδικας (TK) is the 5-digit postcode ELTA uses to route mail, written as three digits, a space, then two more — for example 105 63 for the Syntagma area of central Athens. The leading digit marks one of a small number of broad geographic regions covering the whole country, so it’s a coarse routing hint rather than a fine-grained locator. Anyone validating a Greek shipping address, a checkout form, or a spreadsheet of Greek customer records needs the TK in the correct 5-digit shape before it’s trusted.
Because the space falls in a fixed spot — after the third digit — a code that’s missing it, or has digits shifted across that boundary, produces a string that clearly doesn’t match the expected shape, well before anyone checks whether the specific code is in use.
How this validator works
This tool checks that the input is exactly 5 digits, accepted with or without the customary space after the third digit, entirely in your browser, with nothing sent to a server.
What a pass doesn’t tell you
A TK carries no check digit, so matching the 5-digit shape is the most a client-side tool can confirm — not that ELTA has assigned it to a real neighbourhood. Confirming that requires ELTA’s own postcode lookup.
Scope: this page and tool cover format validation only — not address lookup or confirming a TK is currently in use.
Ταχυδρομικός Κώδικας (TK) FAQ
What is a Ταχυδρομικός Κώδικας (TK)?
TK is Greek for 'postal code' — a 5-digit code ELTA introduced in 1983, conventionally written as three digits, a space, then two more, e.g. 105 63 for the Syntagma Square area of central Athens.
Do I need to type the space?
No — this validator accepts the code with or without the space after the third digit (e.g. '10563' or '105 63'). The space is a writing convention; the underlying code is still 5 digits.
Does a correctly formatted TK mean it actually exists?
No. This tool only confirms the string is 5 digits in the right shape — it doesn't check it against ELTA's actual assignment list. Confirming a TK is real, and seeing which neighbourhood it covers, requires ELTA's own postcode lookup.