Postal Code 4540-404 - Silveiras, Aveiro, Portugal
Postal Code: 4540-404
Postal System Details
Postal Authority
CTT – Correios de Portugal
Postal System
Seven-digit postal code (4 digits + 3 digits: 1234-567)
Region Structure
District → Municipality → Parish → Delivery Zone
Area Information
The postal code 4540-404 follows Portugal’s seven-digit postal addressing system, overseen by CTT – Correios de Portugal, the national postal authority of Portugal. Portuguese postal codes follow the format X X X X–X X X, such as 1 0 0 0–0 0 X (illustrative only). The first four digits define the municipality and parish grouping, while the last three digits specify localized delivery sectors. This postal code corresponds to Silveiras in the Aveiro district/municipality, located near coordinates 40.928 and -8.3146. Routing follows District → Municipality → Parish → Delivery Zone. Example mapping: - District/Municipality: Aveiro - Parish: (Example: Central Parish Area) - Locality: Silveiras - Delivery Sector: Based on last three digits This page reflects routing principles followed by CTT. All examples shown are illustrative only. To ensure precise delivery, verify that the parish and municipality correspond with Silveiras, Aveiro, Portugal.
Country:
Portugal
State:
Aveiro
Area:
Silveiras
Postal Code:
4540-404
Latitude:
40.928
Longitude:
-8.3146
Frequently Asked Questions
1. What area does 4540-404 represent in Portugal?
It designates the parish-level delivery zone serving Silveiras within the Aveiro district/municipality.
2. How do Portuguese postal codes work?
They use the format 1234-567, where the first digits define municipality/parish routing.
3. Can 4540-404 verify an address in Portugal?
Yes—if municipality and parish match Silveiras, Aveiro.
4. Which authority manages postal codes in Portugal?
CTT – Correios de Portugal manages national postal routing and code assignments.