Japanese postal code: three digits, a dash, then four digits. The dash is what makes it safe to detect, since the same seven digits written without it would be indistinguishable from the tail of a phone number.
Label: JP_POSTAL
(?<!\w)\d{3}-\d{4}(?!\w)(?![\s.-]?\d)
The office is at 100-0005 Chiyoda, Tokyo. → 100-0005Ship it to 530-0001 in Osaka please. → 530-0001The old code was 100Range 100-00Tags: jp, location, contact