Postal Code Finder
Registry / Japan / Postal code prefixes / 42 / 420-8509 /

Postal code 420-8509 in Otemachi, Japan

Postal code 420-8509 is mapped to 1 locality record in Japan with administrative hierarchy and coordinates.

Verified data profile for Postal code 420-8509

Based on 1 records, 1 postal code values and 1 mapped localities. Coordinate coverage is 100.0%.

1
Records
1
Postal identifiers
100.0%
Geocoded
420-8509
Example code
Postal code Locality Administrative path Coordinates
420-8509 Otemachi Shizuoka Ken / Shizuoka Shi / Aoi-ku 35.0379, 138.3491

Related postal lookups

Japan
country
Postal code prefixes
code_index
Prefix 42
code_prefix · 1,276 records
420-8503
nearby_postal_code · 1 records
420-8505
nearby_postal_code · 1 records
420-8507
nearby_postal_code · 1 records
420-8508
nearby_postal_code · 1 records
420-8510
nearby_postal_code · 1 records
420-8511
nearby_postal_code · 1 records

Postal code validation data

Use this page to validate one postal code or locality against real parent areas, nearby records and downloadable source rows. The canonical route for this record set is /postal-codes/japan/code/4208509.

Records
1
Database rows represented by this canonical route.
Postal identifiers
1
Distinct postal code values available for this page.
Localities
1
Mapped place names or administrative entries.
Coordinate coverage
100.0%
Rows with latitude and longitude available.
Example
420-8509
Sample code from Otemachi.
Code Place Hierarchy Coordinates
420-8509 Otemachi Shizuoka Ken / Shizuoka Shi / Aoi-ku 35.0379, 138.3491
Download postal data
CSV, JSON and XLSX exports for research, validation and data products.
Use the API
Query postal codes by country, place name, region or code prefix.
Implementation notes
Field definitions, canonical paths and practical lookup guidance.

Useful related pages

Japan
country
Postal code prefixes
code_index
Prefix 42
code_prefix · 1,276 records
420-8503
nearby_postal_code · 1 records
420-8505
nearby_postal_code · 1 records
420-8507
nearby_postal_code · 1 records
420-8508
nearby_postal_code · 1 records
420-8510
nearby_postal_code · 1 records
420-8511
nearby_postal_code · 1 records

Data questions

How should I validate 420-8509?

Validate the postal identifier together with country, locality and administrative hierarchy fields, not as a standalone global pattern.

What context is available for this record?

The page includes the parent country, related prefix or nearby codes, coordinates when available and source rows for download/API workflows.

Postal code range

This code belongs to the 42 prefix range for Japan.

View all 42 postal codes

How to validate postal code 420-8509

Treat 420-8509 as a text value, not a number. Postal identifiers can contain leading zeroes, spaces or letters in other countries, so applications should validate the country and original string together. For this page, the code is valid when it appears with one of the mapped localities below and the administrative path belongs to Japan.

Japan lookup
Open the country-level hierarchy and dataset exports.
Browse all prefixes
Compare this code with neighboring country ranges.
Prefix 42
View related codes in the same prefix range.

Mapped localities

Otemachi
Shizuoka Ken / Shizuoka Shi / Aoi-ku
35.0379, 138.3491

Common lookup mistakes

A postal code can map to more than one locality record, and the same locality name can appear in different administrative areas. Always compare the country, postal code, place name and region together before treating a match as final.

Coordinates on this page are useful for map previews and approximate area checks. They should be read as locality or postal-area centroids, not as exact delivery addresses. For bulk validation, download the country dataset and keep this canonical URL as the human-readable reference for the code.

Nearby postal code lookups

These neighboring identifiers help compare adjacent code ranges inside Japan. Each link opens a canonical postal-code page with its mapped places and administrative context.

420-8503
Temmacho
420-8505
Temmacho
420-8507
Miyamaecho
420-8508
Takajo
420-8510
Takajo
420-8511
Miyamaecho
420-8512
Gofukumachi
420-8515
Miyukimachi