Area Code 2784 – Numata, Gunma

Overview of Area Code 2784

Area code 2784 is a geographic National Destination Code (NDC) assigned to the city of Numata in Gunma Prefecture, Japan. It is part of the country's closed numbering plan under ITU-T E.164, where the full international number comprises the country code +81, the NDC (2784), and a subscriber number of typically 6 digits, resulting in a total of 10 digits when dialed internationally (e.g., +81 2784 XX XXXX). Within Japan, the number is dialed as 02784 XX XXXX, with the leading '0' used for domestic trunk prefix.

Geographic Coverage and Administrative Jurisdiction

The 2784 area code serves the northern part of Gunma Prefecture, primarily covering Numata City and its surrounding municipalities. Numata is a regional administrative and commercial hub, known for its scenic location in the Tone River valley and as a gateway to the Oze National Park. The code also covers nearby towns and villages within the former Numata district, including parts of Katashina and Kawaba villages. This allocation is managed by the Ministry of Internal Affairs and Communications (MIC) and the Telecommunications Carriers Association (TCA).

Dialing Formats and Caller Instructions

Local callers within the Numata area (i.e., within the same NDC) can dial the 6-digit subscriber number directly without the area code. However, for calls from other regions in Japan, callers must dial the trunk prefix '0', followed by the area code 2784 and the subscriber number: 02784 XX XXXX. For example, to call a Numata landline from Tokyo, one would dial 02784 XX XXXX.

International callers must replace the trunk prefix '0' with Japan's country code +81, omitting the leading zero. Thus, a call from the United States to Numata would be dialed as +81 2784 XX XXXX. It is important to note that the international format does not include the leading '0'.

Overlay Considerations and Numbering Plan

As of the latest data, there is no overlay code for the 2784 area; the code is unique to the Numata region. However, in Japan, mobile numbers and some VoIP services are non-geographic and begin with prefixes like 070, 080, and 090, which are not tied to a specific area. Therefore, when calling a Numata number, ensure that the number is indeed a landline, as mobile numbers will have different prefixes.

Practical Usage and Examples

For a local business in Numata, the number might be listed as (02784) XX XXXX. When providing contact information to international clients, it is essential to present the number in international format: +81 2784 XX XXXX. For instance, if the subscriber number is 12 3456, the international dialing format would be +81 2784 12 3456. Always verify the subscriber number length, as some numbers may have fewer digits due to historical allocations.

In summary, area code 2784 is a geographic code serving Numata and its environs, with clear dialing procedures for domestic and international callers. Understanding these formats ensures seamless connectivity to this region of Gunma Prefecture.