Oshawa Postal Codes & Phone Area Query

Oshawa is located in Ontario, Canada, with 9 postal codes indexed, using area code 416. This page provides a complete postal code list and a random phone number generation tool based on real dialing rules.

Postal Code Rules Notice

The postal codes displayed under the current city (e.g., M5V) are Forward Sortation Area prefixes (FSA). For your convenience, we have directly listed examples of partial real, complete postal codes corresponding to this prefix in the list below (format: K1A 0B1). Clicking on the corresponding postal code will take you to the details page of that area, where you can view all complete postal code details and use local dialing rule-compliant phone generation tools.

Canada Postal Code Structure and Rules:

1. First Part (FSA / Forward Sortation Area):

Fixed at 3 characters (format: 'Letter-Number-Letter', e.g., M5V). The first letter represents the main province or geographic region; the second digit indicates a metropolitan area (1-9) or a rural remote area (0); the third letter represents the specific city area or small town.

2. Second Part (LDU / Local Delivery Unit):

Fixed at 3 characters (format: 'Number-Letter-Number', e.g., 2T6). It represents a more precise delivery range, such as a specific street, a large high-rise office building, a residential neighborhood block, or even a specific single institution with high mail volume.

Postal Codes Directory

The following postal codes are indexed for this geographical region.

Postal Code	District / Neighborhood
L1E Examples of complete postal codes: L1E 4V2	Oshawa
L1G Examples of complete postal codes: L1G 0A1 L1G 1A1 L1G 1A2 L1G 1A3 L1G 1A4	Oshawa
L1H Examples of complete postal codes: L1H 0A4 L1H 0A5 L1H 0A6 L1H 1A1 L1H 1A2	Oshawa
L1J Examples of complete postal codes: L1J 0A1 L1J 0A2 L1J 0A3 L1J 0A4 L1J 0A5	Oshawa
L1K Examples of complete postal codes: L1K 0A1 L1K 0A2 L1K 0A3 L1K 0A4 L1K 0A5	Oshawa
L1L Examples of complete postal codes: L1L 0A1 L1L 0A2 L1L 0A3 L1L 0A4 L1L 0A5	Oshawa
L1N Examples of complete postal codes: L1N 0B9 L1N 1B1 L1N 1V9 L1N 2H0 L1N 2T5	Oshawa
L1P Examples of complete postal codes: L1P 1G3	Oshawa
L1R Examples of complete postal codes: L1R 1A1 L1R 1A2 L1R 1A3 L1R 1A4 L1R 1A5	Oshawa

Random Local Phone Numbers

Mock phone numbers matching local formatting and dialing area codes. (416) — Ontario

Frequently Asked Questions

How many ZIP codes are registered for this city?

There are currently 9 unique postal codes indexed for this city. The registered list includes: l1e, l1g, l1h, l1j, l1k, l1l, l1n, l1p, l1r.

What is the local dialing format for this region?

Local phone numbers follow the dialing prefix rules. Numbers generated locally are 10 digits long and utilize regional area codes: 416.

Local Dialing: Within the same area, dial the standard subscriber number directly without country prefix.
International Dialing: To dial internationally, prepend the country dial code followed by the local area code and number.

Can these numbers receive real verification codes?

No. These generated numbers are mock telephone numbers designed exclusively for software testing, quality assurance verification, and compliance mock databases. They cannot receive SMS or standard voice calls.

What do the digits in these postal codes represent?

In the United States, the first three digits of a ZIP code typically refer to a specific sectional center facility (regional mail hub), while the last two digits represent the specific delivery area or post office within that zone.

How can I find the exact ZIP code for a specific street address?

You can browse the detailed neighborhood mapping table on our site, or visit the official postal authority website (such as USPS for the USA) and input the complete street, city, and state information to retrieve the exact code.

Does this city support both 5-digit and ZIP+4 codes?

Yes. This website displays the standard 5-digit base postal codes. For actual mailing, a hyphen followed by a 4-digit extension (e.g., 90001-1234) can be appended to identify specific street segments, buildings, or post office boxes.

Can the phone numbers generated here be used for real calls?

No. The numbers use real regional area codes, but the subscriber numbers are randomly generated mock sequences. They are intended for developers to test input validation and UI formatting in application workflows. They cannot make or receive actual calls.

How frequently is the postal database updated?

Our database is periodically synchronized with official postal releases (like the USPS directories) to ensure that base codes and local district mapping rules remain accurate and up-to-date.

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Toronto Mississauga North York Ottawa Hamilton Scarborough London Windsor Etobicoke Brampton

Oshawa, Ontario (Canada)