Your Electricity Meter Code: What It Is, Where It Is — and why it is not your contract account number
Every time you check past bills, sign up for e-Bill or do anything online with the utility, the form asks for two numbers at once — and most people stall right there, typing the same number into both boxes. This page separates them: which is which, where each one lives, and what each utility calls it.
The meter code is printed on your electricity bill — it is not a number you go outside and read off the meter. MEA states it outright: use “the contract-account number and the meter code from the bill.” PEA's own form likewise asks for electricity user number and meter code in two separate boxes. They are different numbers and both are required: the first identifies the supply contract for that address (PEA's English page calls it the Contract Account, CA); the second identifies the physical meter installed there (PEA calls it the PEA No). Lost the bill? See billing cycles and how to get a replacement bill, or call MEA 1130 / PEA 1129.
Where do I find the electricity meter code in Thailand?
Meter code vs contract account number — what is the difference?
The same two numbers, named differently by each utility
| What it identifies | MEA calls it | PEA calls it |
|---|---|---|
| The supply contract for that address (the customer's account) | Contract-account number | Electricity user number / Contract Account (CA) |
| The physical meter installed at that address | Meter code | Meter code / PEA No |
Is there a separate TOU meter code, and how do I check it?
What can you actually do once you have both numbers?
- Pull the billing history — most useful when this month looks abnormally high, because it lets you compare against the same month last year instead of only against last month. (How to check an abnormally high bill.)
- Register for e-Bill / cycle reminders — MEA offers MEA e-Bill, delivering the bill electronically, which removes the lost-bill problem at its source.
- Identify the premises when contacting the utility — on 1130 / 1129 or at a branch, quoting the two numbers is faster than describing an address and more precise, because they are tied to the meter rather than to a street name.
One caution — these numbers identify your premises, and the utilities periodically publish warnings about impersonators. If someone rings asking you to share your screen, install an app from a link, or read out an OTP over something to do with your meter or bill, hang up and call the official hotline yourself (MEA 1130 / PEA 1129) — not a number they gave you.
Finding both numbers in four steps
No trip to the meter box required — one bill is enough.
1. Take the bill for the premises you mean
With more than one meter, it must be that meter's bill — the numbers do not carry across meters. An electronic bill emailed to you works exactly the same.
2. Locate the number labelled for the meter
MEA prints it as “รหัสเครื่องวัดฯ”; PEA prints it as “รหัสเครื่องวัด”, which its English service labels PEA No.
3. Locate the number labelled for the account
MEA calls it the contract-account number; PEA calls it the electricity user number, in English Contract Account (CA). This is the one people usually type into the wrong box.
4. Enter both, then keep a copy
Photograph them or save them in your phone once, so you never have to dig out a bill again — and if the bill really is gone, 1130 / 1129 can still retrieve them.
What this page does not cover
Who wrote this page, and against what
Frank Lee, Founder of CapSolar — a Thai commercial & industrial solar EPC with 80+ MWp installed across 150+ projects for 100+ clients, and over 85,000+ tons of CO₂ avoided. The names of both numbers were read straight from the forms and FAQs on MEA's and PEA's own sites, with the Thai and English field labels of the same page matched against each other. Where the utilities publish nothing, this page says so rather than guessing.
FAQ
Read next
How to Read an Electricity Meter
Read the dial and work out your units — a different task from finding the codes.
Electricity Name Transfer
Change who holds the contract on an existing meter — documents and timeline.
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Steps, cost, and whether it pays off for your home.
Government Electricity Rate
Which tariff class state bodies sit in, and what it costs per unit.
Pulled the history and got a shock?
For a building or a factory, twelve months of history is exactly what is needed to judge whether solar pays off — CapSolar assesses it free of charge, no obligation.