ZIP Code LL37 (Llangelynin) Address & Phone Area Query - Llangelynin, Gwynedd, United Kingdom

Postal Code Rules Notice

The postal code corresponding to the current page (e.g., LL37) 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 LL37 belongs to the jurisdiction of Llangelynin, Llangelynin, Gwynedd, 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	LL37
District / Neighborhood	Llangelynin (Llangelynin)
City	Llangelynin (Llangelynin)
Province / State	Gwynedd (Gwynedd)
Country	United Kingdom (GB)
Dialing Area Codes	1492

Complete Postal Codes in this Area

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

              LL37 2JA
            

              LL37 2JB
            

              LL37 2JD
            

              LL37 2JE
            

              LL37 2JF
            

              LL37 2JG
            

              LL37 2JH
            

              LL37 2JJ
            

              LL37 2JL
            

              LL37 2JP
            

              LL37 2JQ
            

              LL37 2JR
            

              LL37 2JS
            

              LL37 2JT
            

              LL37 2JU
            

              LL37 2JX
            

              LL37 2JY
            

              LL37 2JZ
            

              LL37 2LA
            

              LL37 2QA
            

              LL37 2QB
            

              LL37 2QD
            

              LL37 2QE
            

              LL37 2QF
            

              LL37 2QH
            

              LL37 2QJ
            

              LL37 2QL
            

              LL37 2QN
            

              LL37 2QP
            

              LL37 2QQ
            

              LL37 2QR
            

              LL37 2QS
            

              LL37 2QW
            

              LL37 2UJ
            

              LL37 2UX
            

              LL37 2UZ
            

              LL37 2YJ
            

              LL37 2YQ
            

              LL37 2YX
            

              LL37 2YZ
            

Random Local Phone Numbers

Mock phone numbers matching local formatting and dialing area codes. (1492)

Frequently Asked Questions

What is the phone number format and dialing rules for this area (postal code LL37)?

Local phone numbers follow the dialing prefix rules. Numbers generated locally are 11 digits long and utilize regional area codes: 1492.

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 LL37?

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 LL37 — Llangelynin, Gwynedd