Telephone numbers in Tseng

In Tseng, telephone numbers follow the format 0XX-XXX-XXXX or 0XXX-XXX-XXXX. The country calling code in Tseng is +83, but the code is not needed if a person is calling locally in Tseng.

Area codes
After the trunk code 0, the next two or three digits in a telephone number is an area code. Area codes increase in number from north to south, west to east, from 10 in Tseng City to TBA in Qingshan Island, Meihua. In general, densely populated areas have two digit area codes, while less dense areas have three digits. Here is a list of places and their area code:

Telecommunications provider
Generally, the next 7 digits are provided by the network operator, which includes TelecomTseng (which had a monopoly on the Tsengian telecommications industry until 2002), and its competitors, Tseng City Telecommunications Network (TCTN) and Far Orient Telecom (FOT).

Mobile numbers
Mobile phone numbers are very similar to landline numbers, with the format 0XX-XXX-XXXX. Mobile phone companies are allocated different ranges within the 90, 91, 92, and 93 area codes.

Emergency numbers
The emergency telephone number in Tseng is 112. However, starting in 2021, 119 could also be used.

Before the introduction of 112 for all emergency services in 1998, 22 was for police, 33 was for fire, and 55 was for ambulance. Those three numbers can still be used for specific services.