---
title: "SoftBank: MCC 440 MNC 20"
mcc: "440"
mnc: "20"
plmn: "44020"
tadig: "JPNJP"
brand: "SoftBank"
operator: "SoftBank Corp."
country: "Japan"
country_iso: "JP"
region: "Asia & Middle East"
technologies: ["3G", "4G"]
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/440_20"
---

# SoftBank: MCC 440, MNC 20 (Japan)

**SoftBank** (operator: SoftBank Corp.) is a mobile network in [Japan](https://mcc-mnc.org/countries/japan.md) (Asia & Middle East), identified by MCC **440** and MNC **20**: PLMN ID 44020, also written 440-20 or 440 20, with the TADIG roaming code **JPNJP**. It runs 3G and 4G. Calling: VoLTE: Supported.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 440 |
| MNC (Mobile Network Code) | 20 |
| PLMN ID (MCC+MNC) | 44020 |
| TADIG code | JPNJP |
| Brand | SoftBank |
| Operator | SoftBank Corp. |
| Country | Japan (JP) |
| Region | Asia & Middle East |
| Dialling code | — |
| Technologies | 3G, 4G |
| Last updated | 2025-04-09 |

## Technologies & bands

| Generation | Bands | Measured cells |
|---|---|---|
| 3G | [UMTS 2100](https://mcc-mnc.org/coverage/umts_2100.md), [UMTS 900](https://mcc-mnc.org/coverage/umts_900.md) | 58 |
| 4G | [LTE 1800](https://mcc-mnc.org/coverage/lte_1800.md), [LTE 700](https://mcc-mnc.org/coverage/lte_700.md), [LTE 2100](https://mcc-mnc.org/coverage/lte_2100.md), [LTE 900](https://mcc-mnc.org/coverage/lte_900.md), [TD-LTE 3500](https://mcc-mnc.org/coverage/td-lte_3500.md), [LTE 1500](https://mcc-mnc.org/coverage/lte_1500.md) | 135,289 |
| 5G | No bands on file | 11,958 |

## Voice & calling services

| Service | Status | Source |
|---|---|---|
| VoLTE | Supported | Android carrier config |
| 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 SoftBank

SoftBank Corp., operating under the name SoftBank, is a major mobile network operator in Japan, a key player in the Asia & Middle East telecommunications landscape. Identified by its Mobile Country Code (MCC) of 440 and Mobile Network Code (MNC) of 20, SoftBank provides a wide range of mobile services, including cellular voice, data, and internet access. As one of the "big three" mobile carriers in Japan, alongside NTT Docomo and KDDI (au), SoftBank competes fiercely to offer cutting-edge technology and attractive service plans to its subscribers. They were notably an early champion of the iPhone in Japan, helping to popularize smartphones in the country.

SoftBank's network infrastructure covers a significant portion of Japan, providing 4G LTE and increasingly, 5G connectivity. This allows them to serve a large customer base across urban and rural areas. Beyond mobile services, SoftBank Corporation has diversified interests spanning broadband, fixed-line telecommunications, and even ventures into areas like robotics and energy. The company's influence extends beyond Japan through investments and partnerships, solidifying its position as a significant force in the global technology market. Their innovative approach to technology and services has made them a notable contender in the Japanese telecommunications sector, always striving to be ahead of the market.

## APN settings

| Name | APN | Types | Protocol | Username | Password | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|---|---|
| Application | `plus.acs.jp` | default, hipri, ia, mms, supl | — | `ym` | `ym` | `http://mms-s` | andmms.plusacs.ne.jp | 8080 | AOSP, LineageOS |
| b-mobile(ソフトバンク) | `sb.mvno` | cbs, default, fota, hipri, ia, mms, supl | — | `jci@jci` | `jci` | — | — | — | LineageOS |
| LINEMO | `plus.acs.jp` | default, hipri, ia, mms, supl | — | `lm` | `lm` | — | — | — | LineageOS |
| LINEモバイル(S) | `line.me` | cbs, default, fota, hipri, ia, mms, supl | — | `line@line` | `line` | — | — | — | LineageOS |
| mineo(Sプラン) | `mineo-s.jp` | cbs, default, fota, hipri, ia, mms, supl | — | `mineo@k-opti.com` | `mineo` | — | — | — | LineageOS |
| nuromobile(S) | `so-net.jp` | cbs, default, fota, hipri, ia, mms, supl | — | `nuro` | `nuro` | — | — | — | LineageOS |
| SoftBank(4G/5G) | `plus.4g` | cbs, default, fota, hipri, ia, mms, supl | — | `plus` | `4g` | `http://mms/` | andmms.softbank.ne.jp | 8080 | LineageOS |
| Softbank(jpspir) | `jpspir` | default, mms, supl | — | `sirobit` | `amstkoi` | `http://mms/` | smilemms.softbank.ne.jp | 8080 | LineageOS |
| Softbank(sbm4glte) | `sbm4glte` | default, supl | — | `data` | `softbank` | — | — | — | LineageOS |
| IMS | `IMS` | ims | IPV6 | — | — | — | — | — | AOSP |
| IMS | `ims` | ims | IPV6 | — | — | — | — | — | LineageOS |

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

## Android carrier config highlights

| Setting | Value | Key |
|---|---|---|
| Call barring supports deactivate all | No | `call_barring_supports_deactivate_all_bool` |
| Call barring supports password change | No | `call_barring_supports_password_change_bool` |
| Call settings over Ut/XCAP | Yes | `carrier_supports_ss_over_ut_bool` |
| Ignore data enabled changed for video calls | Yes | `ignore_data_enabled_changed_for_video_calls` |
| IMS dtmf tone delay | 215 | `ims_dtmf_tone_delay_int` |
| Voicemail number | 1416 | `default_vm_number_string` |
| VoLTE available | Yes | `carrier_volte_available_bool` |
| VoLTE replacement rat | 3 | `volte_replacement_rat_int` |
| 5G icon display grace period | connected_mmwave,legacy,31;connected,legacy,31;connected_mmwave,not_restricted_rrc_con,31;connected,not_restricted_rrc_con,31;not_restricted_rrc_idle,not_restricted_rrc_con,15 | `5g_icon_display_grace_period_string` |
| 5G icon rules | connected_mmwave:5G,connected:5G,not_restricted_rrc_idle:5G | `5g_icon_configuration_string` |
| NR timers reset if non endc and rrc idle | Yes | `nr_timers_reset_if_non_endc_and_rrc_idle_bool` |
| Default MTU | 1422 | `default_mtu_int` |
| Show 4G for LTE data icon | Yes | `show_4g_for_lte_data_icon_bool` |
| Max message text size | -1 | `maxMessageTextSize` |
| Max MMS image height | 1944 | `maxImageHeight` |
| Max MMS image width | 2592 | `maxImageWidth` |
| Max MMS size (bytes) | 307200 | `maxMessageSize` |
| MMS enabled | Yes | `enabledMMS` |
| Recipient limit | -1 | `recipientLimit` |

## Cell towers

OpenCelliD has measured **147,305** cells on this network across 2,754 location/tracking areas, first seen 2014-03-13 and last seen 2026-09-17 (data as of 2026-09-27).

| Radio | Generation | Cells |
|---|---|---|
| UMTS | 3G | 58 |
| LTE | 4G | 135,289 |
| NR | 5G | 11,958 |

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 Japan

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 440 | 00 | [Y Mobile](https://mcc-mnc.org/networks/440_00.md) | — |
| 440 | 01 | [UQ WiMAX](https://mcc-mnc.org/networks/440_01.md) | — |
| 440 | 02 | [Hanshin Cable Engineering Co., Ltd.](https://mcc-mnc.org/networks/440_02.md) | — |
| 440 | 03 | [IIJmio](https://mcc-mnc.org/networks/440_03.md) | — |
| 440 | 04 | [Japan Radio Company, Ltd.](https://mcc-mnc.org/networks/440_04.md) | — |
| 440 | 05 | [Wireless City Planning Inc.](https://mcc-mnc.org/networks/440_05.md) | — |
| 440 | 06 | [SAKURA Internet Inc.](https://mcc-mnc.org/networks/440_06.md) | — |
| 440 | 07 | [LTE-X, Inc.](https://mcc-mnc.org/networks/440_07.md) | — |
| 440 | 08 | [Panasonic Systems Solutions Japan Co., Ltd.](https://mcc-mnc.org/networks/440_08.md) | — |
| 440 | 09 | [Marubeni Wireless Communications Inc.](https://mcc-mnc.org/networks/440_09.md) | — |
| 440 | 10 | [NTT docomo](https://mcc-mnc.org/networks/440_10.md) | JPNDO |
| 440 | 11 | [Rakuten Mobile Network, Inc.](https://mcc-mnc.org/networks/440_11.md) | — |
| 440 | 12 | [Cable media waiwai Co., Ltd.](https://mcc-mnc.org/networks/440_12.md) | — |
| 440 | 21 | [SoftBank](https://mcc-mnc.org/networks/440_21.md) | — |
| 440 | 50 | [au](https://mcc-mnc.org/networks/440_50.md) | — |
| 440 | 51 | [au](https://mcc-mnc.org/networks/440_51.md) | JPNKI |
| 440 | 52 | [au](https://mcc-mnc.org/networks/440_52.md) | — |
| 440 | 53 | [au](https://mcc-mnc.org/networks/440_53.md) | — |
| 440 | 54 | [au](https://mcc-mnc.org/networks/440_54.md) | — |
| 440 | 70 | [au](https://mcc-mnc.org/networks/440_70.md) | — |
| 440 | 71 | [au](https://mcc-mnc.org/networks/440_71.md) | — |
| 440 | 72 | [au](https://mcc-mnc.org/networks/440_72.md) | — |
| 440 | 73 | [au](https://mcc-mnc.org/networks/440_73.md) | — |
| 440 | 74 | [au](https://mcc-mnc.org/networks/440_74.md) | — |
| 440 | 75 | [au](https://mcc-mnc.org/networks/440_75.md) | — |
| 440 | 76 | [au](https://mcc-mnc.org/networks/440_76.md) | — |
| 440 | 78 | [au](https://mcc-mnc.org/networks/440_78.md) | — |
| 440 | 91 | [Tokyo Organising Committee of the Olympic and Paralympic Games](https://mcc-mnc.org/networks/440_91.md) | — |
| 441 | 01 | [SoftBank](https://mcc-mnc.org/networks/441_01.md) | — |
| 441 | 10 | [UQ WiMAX](https://mcc-mnc.org/networks/441_10.md) | — |

---

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