ZIP Code UB11 (Hillingdon) Address & Phone Area Query - Hillingdon, Greater London, United Kingdom

Postal Code Rules Notice

The postal code corresponding to the current page (e.g., UB11) is an Outward Code prefix. To ensure system building efficiency and proper page loading, the system aggregates and displays all detailed, complete postal codes in this region. You can find more precise 6 or 7-character complete postal codes below (format: SW1A 1AA), corresponding to specific streets, residential buildings, commercial offices, or specific delivery points.

UK Postal Code Structure and Rules:

1. First Part (Outward Code / Outward Postcode):

2 to 4 characters in length (e.g. SW1A, M1). Represents the Postal Area and the District under the postal area. Composed of 1-2 letters plus 1-2 digits (or alphanumeric combination), used to route mail to the correct UK sorting center.

2. Second Part (Inward Code / Inward Postcode):

Fixed at 3 characters (e.g. 1AA). Represents the specific postal sector (Sector) and the specific delivery point unit (Unit). The first digit is fixed as 0-9, and the last two are letters (C, I, K, M, O, V are not used to avoid confusion). Precise down to a street or specific building.

Postal code UB11 belongs to the jurisdiction of Hillingdon, Hillingdon, Greater London, United Kingdom. This page contains complete postal details, delivery branch information, and random phone number generation tools for this code.

Detailed ZIP Code Geography

The following postal codes are indexed for this geographical region.

Postcode	UB11
District / Neighborhood	Hillingdon (Hillingdon)
City	Hillingdon (Hillingdon)
Province / State	Greater London (Greater London)
Country	United Kingdom (GB)
Dialing Area Codes	20

Complete Postal Codes in this Area

Below is a detailed list of all complete postal codes included in this area:

              UB11 1AA
            

              UB11 1AD
            

              UB11 1AF
            

              UB11 1AQ
            

              UB11 1AS
            

              UB11 1AW
            

              UB11 1AX
            

              UB11 1AZ
            

              UB11 1BA
            

              UB11 1BB
            

              UB11 1BD
            

              UB11 1BF
            

              UB11 1BT
            

              UB11 1BU
            

              UB11 1DB
            

              UB11 1ET
            

              UB11 1EZ
            

              UB11 1FE
            

              UB11 1HB
            

              UB11 1HU
            

              UB11 1JA
            

              UB11 1PA
            

              UB11 1TD
            

              UB11 1WF
            

              UB11 1WH
            

              UB11 1FG
            

              UB11 1FJ
            

Random Local Phone Numbers

Mock phone numbers matching local formatting and dialing area codes. (20)

Frequently Asked Questions

What is the phone number format and dialing rules for this area (postal code UB11)?

Local phone numbers follow the dialing prefix rules. Numbers generated locally are 11 digits long and utilize regional area codes: 20.

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.

What can the random phone numbers generated here be used for?

They are simulated data designed specifically for software development testing, QA automation workflows, form input validation (e.g., formatting mobile/landline numbers), and international compliance mock databases. Simulated phones cannot make or receive calls, nor can they receive SMS verification codes.

How to check the specific jurisdiction or branch associated with postal code UB11?

Our website lists specific communities and delivery branch details (if any) in the details section. You can also double-check accuracy via the official query portals provided by the official postal reference sources below (such as China Post or US USPS) to ensure data is absolutely precise.

Data Verification & Reference Sources

The following official postal authorities can be used to verify the accuracy of the postal code data on this page:

Postcode UB11 — Hillingdon, Greater London