Prefix 20 contains 5 postal code records across 2 mapped localities in Iceland.
Based on 5 records, 5 postal code values and 2 mapped localities. Coordinate coverage is 100.0%.
Compare this range with other active postal code prefixes from the same country-level directory.
This page keeps a bounded sample for fast crawling and links each code to its canonical lookup page. Use the country export when you need the full prefix dataset.