Check number ownership in real time, straight from the mobile operator. One contract, one schema and one audit trail for True-dtac and AIS.
You never need to know which network a customer is on. Infos validates the request, routes it, and gives you back one consistent answer.
Bank, leasing firm, payment gateway
Checks number & consent · routes · records evidence
TrueMove H & dtac subscribers
AIS mobile subscribers
Authentication and fraud signals that come straight from the operator at the moment of decision, not from a stale database.
Who is registered to this number?
Pre-fill onboarding forms with the operator's registered profile, and spot mismatches with what the applicant typed.
Returns: name, ID, address, date of birth, email
POST /v1/kyc/fill-in
Does this number belong to this ID?
Match a phone number to a 13-digit national ID or a company registration number, without receiving any personal data back.
Returns: match / no match
POST /v1/thai-id/verify
How long has this SIM been in service?
Prepaid or postpaid, active or not, and how long the line has been in service. A number in service for 11 days is a very different risk from one in service for six years.
Returns: line type, status, service age
POST /v1/mobile/subscriber-status
Is this device using this number right now?
Silent, OTP-free verification over the phone's mobile data connection. Infos detects the network and hands the check to the right operator automatically.
Returns: verified true / false
POST /v1/number-verify/sessions
Was the SIM changed recently?
Catch account-takeover attempts before you send an OTP or approve a transfer: check for a swap within a window (up to 30 days), or get the date of the last swap.
Returns: swapped yes / no, last swap date
POST /v1/sim-swap/check
Is the phone abroad right now?
See whether a login or payment is coming from a phone that is roaming, and in which country.
Returns: roaming status, country
POST /v1/device/roaming
Is the device inside this area?
Confirm that a device is near a branch, dealer or claimed address. You choose a circle with a radius from 2 to 200 km.
Returns: yes / partial / no
POST /v1/location/verify
Send and validate one-time codes
Operator-sent one-time passcodes, with your own message template. Only the company that sent a code can validate it.
Returns: authentication ID, valid / invalid
POST /v1/otp/send · /validate
| API | True-dtac | AIS |
|---|---|---|
| Number Verification | ||
| KYC Fill-in | — | |
| Thai ID Verification | — | |
| Mobile Subscriber Status | — | |
| SIM Swap | — | |
| Device Roaming | — | |
| Location Verification | — | |
| OTP SMS | — |
Coverage grows as operators publish new APIs. Your integration stays the same: new networks appear behind the same endpoints.
Plain JSON over HTTPS. Every operator's quirks are handled for you: encryption, number formats, token flows and error codes.
One key and secret for every capability and every operator.
Each call carries X-Consent-Id, your reference to the subscriber's consent. Phone numbers can be in any Thai format.
The same fields from every operator: reason, the result, and a request_id you can quote in any dispute.
Put telco signals at the moments that decide risk: onboarding, login, and changes to accounts and limits.
Mule farms churn cheap prepaid SIMs. A low service age plus a prepaid line at account opening is a combination no other Thai data source can show you.
Check the applicant and the guarantor at the dealer counter, before the vehicle leaves the showroom.
A PromptPay ID on a number that has been in service for 11 days behaves nothing like one on a number in service for six years.
Neither operator will sell you the other's coverage. We do, with a Thai-law contract and Thai-language support.
True-dtac and AIS under a single Thai-law agreement, with THB invoicing. No need to negotiate two enterprise deals.
One request and response format, whichever operator answers. Phone numbers in any Thai spelling.
Operator spec changes, encryption schemes and new error codes are our problem, not yours.
Every request and the operator's raw response are kept permanently: your audit trail and your dispute record.
A call without a consent reference is refused before it reaches any operator, and is never billed.
Bangkok-based engineers who speak your language and know the local operators.
The Emergency Decree on Technology Crimes (No. 2) makes banks, telcos and platforms jointly liable for scam losses, apportioned by negligence. A recorded telco check at the moment of decision is evidence that you acted.
Infos Corporation Co., Ltd. is a Bangkok software company with a professional team that has deep experience in the mobile and IT solutions market. We are promoted by the Board of Investment (BOI) in the Software category.
We have built systems that run inside mobile operators and enterprises, from SIM card management to vendor portals. Infos Telco API brings that experience to banks, lenders and payment companies.
Tell us which checks you need and where they fit in your flow. We will reply with a proposal and test access.