Yamaguchi Yanai Area · Town
Suo-Oshima Town Office

Suo-Oshima Town Office: phone number, opening hours and address

The main phone number of the Suo-Oshima Town Office is 0820-74-1000. Here is what to know before you call, with the address, opening hours and official website.

Suo-Oshima Town Office

Suo-Oshima Town Office main line

Official website www.town.suo-oshima.lg.jp

0820-74-1000

Without hyphens: 0820741000

The main number connects you to an operator, who will put you through to the right section. Calls are usually answered in Japanese.

Checked against the official website · October 7, 2026

ABOUT

About Suo-Oshima Town

Suo-Oshima Town was created in 2004 by the merger of four towns: Kuka, Oshima, Towa and Tachibana. Made up of Yashiro Island (Suo-Oshima) in the Seto Inland Sea and the surrounding islands, it is linked to the mainland by the Oshima Bridge, opened in 1976. The town office is in the Komatsu area.

BASIC INFO

Basic information

Main phone
0820-74-1000
Address
〒742-2192 山口県大島郡周防大島町大字小松126-2Shown in Japanese so you can paste it into a map app or show it to a taxi driver.
Opening hours
Weekdays 8:30–17:15Closed on weekends, public holidays and Dec 29 – Jan 3
Local government code
353051Yamaguchi Yanai Area · Town

ACCESS

Access and map

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Address

〒742-2192 山口県大島郡周防大島町大字小松126-2

RELATED OFFICES

Phone numbers of related government offices

Public offices in charge of this municipality (national and prefectural branches). National taxes — income tax and consumption tax returns, tax certificates — are handled by the tax office, not the municipal office. Addresses are shown in Japanese.

  • Tax office

    Yanai Tax Office

    柳井税務署

    Yanai Tax Office
    0820-22-0277

    〒742-8605 山口県柳井市柳井3745番地1

    Covers Yanai City as well as Suo-Oshima Town

  • Pension office

    Iwakuni Pension Office

    岩国年金事務所

    Iwakuni Pension Office
    0827-24-2222

    〒740-8686 山口県岩国市立石町1-8-7

    Covers Iwakuni City, Yanai City, Waki Town as well as Suo-Oshima Town

    Personal pension consultations are accepted at any pension office in Japan.

  • Hello Work (public employment office)

    Hello Work Yanai

    ハローワーク柳井

    Hello Work Yanai
    0820-22-2661

    〒742-0031 山口県柳井市南町2丁目7-22

    Covers Yanai City, Kaminoseki Town, Tabuse Town, Hirao Town as well as Suo-Oshima Town

  • Public health center

    Yanai Environmental and Public Health Center

    柳井環境保健所

    Yanai Environmental and Public Health Center
    0820-22-3631

    〒742-0031 山口県柳井市南町3-9-3

    Covers Yanai City, Kaminoseki Town, Tabuse Town, Hirao Town as well as Suo-Oshima Town

FAQ

Frequently asked questions

Q

What is the phone number of the Suo-Oshima Town Office?

The main phone number of the Suo-Oshima Town Office is 0820-74-1000. It connects you to an operator, who will transfer you to the right section once you explain what you need.

Q

What are the opening hours of the Suo-Oshima Town Office? What time does it open and close?

Opening hours of the Suo-Oshima Town Office: Weekdays 8:30–17:15. It is closed on Saturdays, Sundays, public holidays and over the New Year break (Dec 29 – Jan 3). Hours can differ by counter and service, so please check the official website for details.

Q

Can I call the Suo-Oshima Town Office on weekends or at night?

The main line is generally not answered outside opening hours. For non-urgent procedures and certificates you may be able to use online applications on the official website (https://www.town.suo-oshima.lg.jp/) or the Mynaportal. Check the official website for any weekend service counters.

Q

Which tax office and pension office cover the Suo-Oshima Town Office?

Suo-Oshima Town is covered by the Yanai Tax Office (0820-22-0277). It handles national taxes such as income tax and consumption tax returns and tax certificates. Pension matters are handled by Iwakuni Pension Office (0827-24-2222); personal consultations are accepted at any pension office in Japan.

GOVERNMENT OFFICES

Phone numbers of tax offices, pension offices, Hello Work and public health centers

Main phone numbers, addresses and jurisdictions of the offices in Yamaguchi.

NEARBY

Other municipalities in Yanai Area, Yamaguchi

Phone numbers of all 19 municipalities in Yamaguchi

For staff of municipalities and public offices

We accept requests to correct or update the phone numbers, office hours, addresses and other details listed here. We check each request against the official website before updating.

Request a correction or update

The phone numbers, addresses and opening hours on this page are based on information published on each municipality's official website (last checked: October 7, 2026). Please check the official website for the latest information. This page compiles public information for the convenience of residents and does not indicate any business or partnership relationship between the listed municipalities and AIRI (LIVERUSH Co., Ltd.). If you find an error, please let us know via our contact form.

Tax office names, addresses, phone numbers and jurisdictions are based on the National Tax Agency's 税務署の所在地などを知りたい方 (checked October 19, 2026). Pension office names, addresses, phone numbers and jurisdictions are based on the Japan Pension Service's 年金事務所管轄区域 (checked October 19, 2026). Hello Work (public employment office) names, addresses, phone numbers and jurisdictions are based on the Ministry of Health, Labour and Welfare's 全国ハローワーク所在案内 (checked October 19, 2026). Public health center names, addresses, phone numbers and jurisdictions are based on the Ministry of Health, Labour and Welfare's 保健所管轄区域案内 (checked October 19, 2026).