Telephone numbers in Tseng

In Tseng, telephone numbers follow the format X-XX-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
The first digit in a telephone number is an area code. They run from 2 to 9. For landlines, the second and third digits of the number indicate the city or county of the number. Those numbers are sometimes also called "area codes" or "city codes" (ex. 2-30-xxx-xxxx indicates that this number is from Tseng City). Here is a list of them:

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; they even have the same format. However, there is no "city code" for mobile numbers, so the second and third digits are provided by the network operator.

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 emergencies.