---
title: "AIS-T / TOT Mobile: MCC 520 MNC 15"
mcc: "520"
mnc: "15"
plmn: "52015"
brand: "AIS-T / TOT Mobile"
operator: "TOT Public Company Limited"
country: "Thailand"
country_iso: "TH"
region: "Oceania"
technologies: ["3G"]
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/520_15"
---

# AIS-T / TOT Mobile: MCC 520, MNC 15 (Thailand)

**AIS-T / TOT Mobile** (operator: TOT Public Company Limited) is a mobile network in [Thailand](https://mcc-mnc.org/countries/thailand.md) (Oceania), identified by MCC **520** and MNC **15**: PLMN ID 52015, also written 520-15 or 520 15. It runs 3G. Calling: VoLTE: Likely.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 520 |
| MNC (Mobile Network Code) | 15 |
| PLMN ID (MCC+MNC) | 52015 |
| TADIG code | — |
| Brand | AIS-T / TOT Mobile |
| Operator | TOT Public Company Limited |
| Country | Thailand (TH) |
| Region | Oceania |
| Dialling code | — |
| Technologies | 3G |
| Last updated | 2025-04-09 |

## Technologies & bands

| Generation | Bands | Measured cells |
|---|---|---|
| 3G | [UMTS 2100](https://mcc-mnc.org/coverage/umts_2100.md) | 234 |
| 4G | No bands on file | 252 |

## Voice & calling services

| Service | Status | Source |
|---|---|---|
| VoLTE | Likely | Network publishes an IMS APN |
| VoWiFi | Unknown | — |
| ViLTE | Unknown | — |
| VoNR | Unknown | — |

A service not marked Supported or Not supported is unknown: no data either way, not a sign that the network lacks it.

## About AIS-T / TOT Mobile

TOT Public Company Limited, operating as AIS-T / TOT Mobile in Thailand, represents a unique chapter in the country's mobile telecommunications landscape. Primarily known for its former state-owned status, TOT (Telephone Organization of Thailand) has historically played a crucial role in developing Thailand's communication infrastructure. Today, under the operating banner of AIS-T / TOT Mobile, it provides mobile services, evidenced by its unique MCC (Mobile Country Code) and MNC (Mobile Network Code) pairing of 520-15. The MCC identifies Thailand, while the MNC pinpoints TOT Public Company Limited within the country. Understanding these codes is fundamental for identifying networks and ensuring device compatibility while roaming. Although Thailand is geographically situated in Southeast Asia, for telecommunications purposes, it is usually categorized by global network operators as part of the APAC region.

While AIS and TrueMove H often dominate discussions about Thailand's mobile market, the role of AIS-T / TOT Mobile is still important. It has a specific strategic partnership with Advanced Info Service (AIS), Thailand’s largest mobile operator, leading it to operate under the banner 'AIS-T / TOT Mobile'. Due to its past history, TOT had significant network infrastructure in less densely populated regions of Thailand, potentially offering coverage in areas where other networks might have had a weaker signal at one time. Although TOT no longer operates as a single independent operator, instead leveraging the infrastructure and network of AIS, it will continue to support its existing subscribers in accordance with previous agreements. Its distinctive MCC and MNC code (520 15) therefore remains relevant for technical identification of devices still registered on this network, especially within databases cataloging mobile network information.

## APN settings

| Name | APN | Types | Protocol | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|
| TOT 3G | `internet` | default, supl | — | — | — | — | LineageOS |
| TOT 3G Internet | `internet` | default, ia, supl | — | — | — | — | AOSP |
| TOT 3G MMS | `mms` | mms | — | `http://mms.tot3g.net:8002` | 192.168.0.72 | 8080 | AOSP |
| TOT 3G MMS | `mms` | mms | — | `http://mms.tot3g.net:8002` | 10.218.24.83 | 8080 | LineageOS |
| TOT IMS | `ims` | ims | IPV4V6 | — | — | — | AOSP |
| TOT UT | `xcap` | xcap | IPV6 | — | — | — | AOSP |

Settings come from Android's AOSP and LineageOS APN lists and user corrections.

## Android carrier config highlights

| Setting | Value | Key |
|---|---|---|
| Treated as roaming | 520 | `roaming_operator_string_array` |

## Cell towers

OpenCelliD has measured **486** cells on this network across 91 location/tracking areas, first seen 2017-04-12 and last seen 2026-07-17 (data as of 2026-09-27).

| Radio | Generation | Cells |
|---|---|---|
| UMTS | 3G | 234 |
| LTE | 4G | 252 |

Locate a single cell by MCC, MNC, LAC/TAC and cell ID with the https://mcc-mnc.org/cell-id-lookup tool, `GET /api/v1/cells` or the MCP `lookup_cell` tool. Cell data from OpenCelliD (https://opencellid.org), licensed CC BY-SA 4.0.

## Other networks in Thailand

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 520 | 00 | [TrueMove H / my by CAT](https://mcc-mnc.org/networks/520_00.md) | THACT |
| 520 | 01 | [AIS](https://mcc-mnc.org/networks/520_01.md) | — |
| 520 | 02 | [CAT CDMA](https://mcc-mnc.org/networks/520_02.md) | — |
| 520 | 03 | [AIS](https://mcc-mnc.org/networks/520_03.md) | THAWN |
| 520 | 04 | [TrueMove H](https://mcc-mnc.org/networks/520_04.md) | THACA |
| 520 | 05 | [dtac TriNet / LINE](https://mcc-mnc.org/networks/520_05.md) | THADT |
| 520 | 09 | [Royal Thai Police](https://mcc-mnc.org/networks/520_09.md) | — |
| 520 | 18 | [dtac](https://mcc-mnc.org/networks/520_18.md) | THAWP |
| 520 | 20 | [ACeS](https://mcc-mnc.org/networks/520_20.md) | — |
| 520 | 23 | [AIS GSM 1800](https://mcc-mnc.org/networks/520_23.md) | — |
| 520 | 25 | [WE PCT](https://mcc-mnc.org/networks/520_25.md) | — |
| 520 | 47 | [dtac-T / LINE / TOT Mobile](https://mcc-mnc.org/networks/520_47.md) | — |
| 520 | 99 | [TrueMove](https://mcc-mnc.org/networks/520_99.md) | THACO |

---

HTML version: https://mcc-mnc.org/networks/520_15 · Index for AI agents: https://mcc-mnc.org/llms.txt · Data is community-maintained; corrections welcome on the HTML page.