How should I validate 4540-623?

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

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Registry / Portugal / Postal Code prefixes / 45 / 4540-623 /

Postal code 4540-623 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 4540-623 →

Province / County / District

Arouca

Region & Locality

Seixido, Aveiro (Portugal)

📦 How to Write a Mailing Address for 4540-623

Nome do Destinatário
Avenida da Liberdade 100, 2º Esq.
4540-623 SEIXIDO
PORTUGAL

1 Place

Geographic Centroid & Coverage: Highlighted marker and radius show the verified WGS84 postal area centroid for 4540-623.

Postal Identifier	4540-623
Primary Locality	Seixido
WGS84 Centroid Coordinates	40.899, -8.4022
Postal Prefix Sector	45xx → Browse prefix 45
Time Zone (Standard)	UTC+0 / UTC+1 (WET/WEST · Europe/Lisbon)
Geodesic Quadrant	40.8990° N, 8.4022° W (WGS84)
Open Location Code (Plus Code)	8CGHVHXX+J4
UTM Grid Coordinates (WGS84)	29T 550353m E, 4527717m N
Solar Daylight Today (UTC)	🌅 06:51 UTC · 🌇 17:44 UTC
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