Annaka City Office:
phone number, opening hours and address
The main phone number of the Annaka City Office is 027-382-1111. Here is what to know before you call, with the address, opening hours and official website.
Annaka City Office main line
Official website www.city.annaka.lg.jp
Without hyphens: 0273821111
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 Annaka City
Annaka became a city in 1958, when Annaka Town adopted city status, and took its present form after merging with Matsuida Town in 2006. Post towns of the Nakasendo highway were located here, and it is known for Usui Pass and Megane Bridge (Usui No. 3 Bridge). The city office is in Annaka 2-chome, where a new building opened in May 2026.
BASIC INFO
Basic information
- Main phone
- 027-382-1111
- Address
- 〒379-0192 群馬県安中市安中2-13-7Shown 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
- Official website
- www.city.annaka.lg.jp
- Local government code
- 102113Gunma Western Area · City
ACCESS
Access and map
Address
〒379-0192 群馬県安中市安中2-13-7
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.
- 027-322-4711
〒370-8611 群馬県高崎市東町134番地の12高崎地方合同庁舎
Covers Takasaki City, Shibukawa City, Shinto Village, Yoshioka Town as well as Annaka City
- 027-322-4299
〒370-8567 群馬県高崎市栄町10-1
Covers Takasaki City, Fujioka City, Tomioka City, Ueno Village, Kanna Town, Shimonita Town, Nanmoku Village, Kanra Town as well as Annaka City
Personal pension consultations are accepted at any pension office in Japan.
- 027-382-8609
〒379-0116 群馬県安中市安中1-1-26
- 027-381-0345
〒379-0132 群馬県安中市高別当336-8
FAQ
Frequently asked questions
What is the phone number of the Annaka City Office?
The main phone number of the Annaka City Office is 027-382-1111. It connects you to an operator, who will transfer you to the right section once you explain what you need.
What are the opening hours of the Annaka City Office? What time does it open and close?
Opening hours of the Annaka City 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.
Can I call the Annaka City 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.city.annaka.lg.jp/) or the Mynaportal. Check the official website for any weekend service counters.
Which tax office and pension office cover the Annaka City Office?
Annaka City is covered by the Takasaki Tax Office (027-322-4711). It handles national taxes such as income tax and consumption tax returns and tax certificates. Pension matters are handled by Takasaki Pension Office (027-322-4299); 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 Gunma.
NEARBY
Other municipalities in Western Area, Gunma
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.
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).