Many mobile phone users in Sri Lanka want to do TRCSL IMEI check SMS. So, how to do TRCSL registration check? TRCSL Approved check code via SMS is simple. You can send a SMS to 1909 by typing IMEI and then 15 digit IMEI number. See the following table / image:
| Type | IMEI <IMEI number> |
| Send | 1909 |
 |
| How to do TRCSL registration check? |
How to find IMEI number?
Fifteen digits IMEI (International Mobile Equipment Identity) number is a unique to every phone. You can simple see outside of the phone box and it would found in invoice too. If you cannot access the box and invoice, type *#06# and you will get IMEI number and serial number. If the phone has dual SIM facility, you will get two IMEI numbers.
IMEI’s first 8 digits are Type Allocation Code (TAC) and unique TAC indicates particular phone’s marketing name and the manufacture. Eg: 867612034148134. This is the IMEI of an Oppo A83 smartphone. All Oppo A83’s first eight digits will be 86761203.
Why do you need to check?
Consumers should check the TRCSL approval when they purchase phone or any of devices that connect SIM(s) to cellular networks. Unregistered phone/device would deactivate and fail to connect with cellular networks in Sri Lanka.
This regulation is to prevent illegal and fake phones or wrong models that emit higher radiation and it can harm users.
A user has the privilege to do TRCSL registration check, and phone vendors cannot reject if customer is ready to buy. Also, customer can ensure TRCSL approval by checking registration number on the phone box. If not, consumer can ask vendor to clarify.