Colchester is located in Colchester, Essex, United Kingdom, with 3390 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. (1206) — Essex
Frequently Asked Questions
How many postal codes are indexed in this area (Colchester)?
There are currently 3390 unique postal codes indexed for this city. The registered list includes: CO4 9SH, CO4 9SJ, CO4 9SL, CO4 9SN, CO4 9SP, CO4 9SQ, CO4 9SR, CO4 9SS, CO4 9ST, CO4 9SU, CO4 9SW, CO4 9SX, CO4 9SY, CO4 9SZ, CO4 9TB, CO4 9TD, CO4 9TF, CO4 9TH, CO4 9TJ, CO4 9TL, CO4 9TN, CO4 9TP, CO4 9TQ, CO4 9TR, CO4 9TS, CO4 9TT, CO4 9TU, CO4 9TW, CO4 9TX, CO4 9TY, CO4 9TZ, CO4 9UE, CO4 9UF, CO4 9UG, CO4 9UH, CO4 9UJ, CO4 9UN, CO4 9UQ, CO4 9UR, CO4 9UW, CO4 9UX, CO4 9WG, CO4 9WH, CO4 9WJ, CO4 9WN, CO4 9WP, CO4 9WQ, CO4 9WT, CO4 9WW, CO4 9WX, CO4 9XA, CO4 9XE, CO4 9XN, CO4 9XP, CO4 9XR, CO4 9XS, CO4 9XT, CO4 9XW, CO4 9XZ, CO4 9YA, CO4 9YB, CO4 9YD, CO4 9YE, CO4 9YF, CO4 9YJ, CO4 9YL, CO4 9YN, CO4 9YQ, CO4 9YR, CO4 9YT, CO4 9YU, CO4 5TL, CO4 5TN, CO4 5TP, CO4 5TQ, CO4 5TR, CO4 5TS, CO4 5TT, CO4 5TU, CO4 5TW, CO4 5TX, CO4 5TY, CO4 5TZ, CO4 5UA, CO4 5UB, CO4 5UD, CO4 5UE, CO4 5UF, CO4 5UG, CO4 5UH, CO4 5UJ, CO4 5UL, CO4 5UN, CO4 5UP, CO4 5UQ, CO4 5UT, CO4 5UU, CO4 5UW, CO4 5UX, CO4 5UY.
What is the phone number format and dialing rules for this area (Colchester)?
Local phone numbers follow the dialing prefix rules. Numbers generated locally are 11 digits long and utilize regional area codes: 1206.
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 (Colchester)?
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: