How should I validate 3700-421?

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

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

Registry / Portugal / Postal Code prefixes / 37 / 3700-421 /

Postal code 3700-421 covers 1 verified locality record in Portugal with interactive boundary centroid map and administrative hierarchy.

VERIFIED QUICK ANSWER & ADDRESS FORMAT 📏 Calculate Distance & Mail Time from 3700-421 →

Province / County / District

Santa Maria da Feira

Region & Locality

Arrifana, Aveiro (Portugal)

📦 How to Write a Mailing Address for 3700-421

Nome do Destinatário
Avenida da Liberdade 100, 2º Esq.
3700-421 ARRIFANA
PORTUGAL

1 Place

Geographic Centroid & Coverage: Highlighted marker and radius show the verified WGS84 postal area centroid for 3700-421.

Postal Identifier	3700-421
Primary Locality	Arrifana
WGS84 Centroid Coordinates	40.9157, -8.4966
Postal Prefix Sector	37xx → Browse prefix 37
Time Zone (Standard)	UTC+0 / UTC+1 (WET/WEST · Europe/Lisbon)
Geodesic Quadrant	40.9157° N, 8.4966° W (WGS84)
Open Location Code (Plus Code)	8CGHWG83+79
UTM Grid Coordinates (WGS84)	29T 542391m E, 4529521m N
Solar Daylight Today (UTC)	🌅 06:49 UTC · 🌇 17:48 UTC
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