Hillingdon is located in Hillingdon, Greater London, United Kingdom, with 5842 postal codes indexed. This page provides a complete postal code list and a mock phone number generator based on local dialing rules.
Postal Codes Directory
The following postal codes are indexed for this geographical region.
Random Local Phone Numbers
Mock phone numbers matching local formatting and dialing area codes. (20) — Greater London
Frequently Asked Questions
How many postal codes are indexed in this area (Hillingdon)?
There are currently 5842 unique postal codes indexed for this city. The registered list includes: UB8 3UL, UB8 3UN, UB8 3UP, UB8 3UQ, UB8 3UR, UB8 3US, UB8 3UT, UB8 3UU, UB8 3WB, UB8 3WE, UB8 3WF, UB8 3WG, UB8 3WP, UB8 3WQ, UB8 3WR, UB8 3WS, UB8 3WT, UB8 3WU, UB8 3WW, UB8 3WX, UB8 3WY, UB8 3XA, UB8 3XB, UB8 3XD, UB8 3XF, UB8 3XG, UB8 3XH, UB8 3XX, UB8 3YR, UB8 9BR, UB8 9DP, UB8 9DQ, UB8 9FH, UB8 9FN, UB8 9FP, UB8 9FW, UB8 9GE, UB8 9GF, UB8 9GG, UB8 9GJ, UB8 9GT, UB8 9HE, UB8 9JJ, UB8 9LU, UB8 9LZ, UB8 9NG, UB8 9NJ, UB8 9NL, UB8 9NP, UB8 9NR, UB8 9PP, UB8 9PT, UB8 9SA, UB8 9SB, UB8 3EN, UB8 3EP, UB8 3EQ, UB8 3ER, UB8 3ES, UB8 3ET, UB8 3EU, UB8 3EW, UB8 3EX, UB8 3EY, UB8 3EZ, UB8 3FB, UB8 3FE, UB8 3FG, UB8 3GA, UB8 3GX, UB8 3GY, UB8 3HA, UB8 3HB, UB8 3HD, UB8 3HE, UB8 3HF, UB8 3HG, UB8 3HH, UB8 3HJ, UB8 3HL, UB8 3HN, UB8 3HP, UB8 3HQ, UB8 3HR, UB8 3HS, UB8 3HT, UB8 3HW, UB8 3HX, UB8 9SD, UB8 9SE, UB8 9SF, UB8 9SG, UB8 9SH, UB8 9SJ, UB8 9SL, UB8 9SN, UB8 9SQ, UB8 9SR, UB8 9SS, UB8 9ST.
What is the phone number format and dialing rules for this area (Hillingdon)?
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.
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 simulated 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, and they cannot be used to dial real numbers.
How to verify the accuracy of the postal code data for this area (Hillingdon)?
You can double-check accuracy via the official query portals provided by the official postal reference sources below (such as China Post or US USPS). Our website data is periodically synchronized with these officially published directories to ensure the accuracy and timeliness of the basic codes and regional mapping data.
Data Verification & Reference Sources
The following official postal authorities can be used to verify the accuracy of the postal code data on this page: