Area Code 790 – Xinyu, Jiangxi

Geographic Coverage and Administrative Jurisdiction

The +86 790 country and area code combination is the international dialing prefix for the city of Xinyu (新余), a prefecture-level city located in the central-western part of Jiangxi Province, China. Xinyu is administratively divided into one district (Yushui) and one county (Fenyi), both of which are served by this single geographic area code. The code covers the entire urban area of Xinyu, including the central business districts, industrial zones, and surrounding townships. As a geographic code, it is tied to the PSTN (Public Switched Telephone Network) infrastructure of the region, and its use is mandatory for routing landline calls to any fixed-line subscriber within the Xinyu administrative boundary.

Dialing Formats and Caller Instructions

For domestic callers within China, the area code is dialed as 0790 when calling from outside Xinyu but within the country. The domestic trunk prefix '0' is added before the area code. For example, to call a landline number in Xinyu from Beijing, you would dial 0790-XXXXXXX. Within Xinyu itself, local calls are made using only the 7-digit subscriber number, without the area code or trunk prefix.

For international callers, the country code +86 is used, followed by the area code without the leading '0'. Thus, a call from the United States to a Xinyu landline would be dialed as 011 86 790 XXXX XXX (or +86 790 XXXX XXX from a mobile phone). The subscriber number is 7 digits long, making the complete international format +86 790 XXXX XXX.

Overlay and Numbering Plan Considerations

As of the latest ITU-T E.164 national numbering plan updates, Xinyu does not have an overlay code. The 790 code is exclusively assigned to Xinyu, and no other city in Jiangxi shares this code. This simplifies dialing: callers must always use 0790 for domestic long-distance calls to Xinyu, and +86 790 for international calls. There are no plans for an overlay in the near future, as the current numbering capacity is sufficient for the region's demand.

Practical Usage Notes

When calling Xinyu from abroad, be aware that some carriers may require you to drop the leading '0' of the area code, which is standard practice. Always verify the correct international access code for your country (e.g., 011 from North America, 00 from most European countries). For VoIP users, the same international format applies. It is also important to note that this code is used exclusively for fixed-line services; mobile numbers in Xinyu use the non-geographic 1XX prefixes assigned to Chinese mobile operators and are not tied to this area code.