In many countries, dialing either 1-1-2 (used in Europe and parts of Asia) or 9-1-1 (used in the Americas) will connect callers to the local emergency services.Some countries use other emergency telephone numbers, sometimes also depending on the emergency service.The emergency numbers in the world (but not necessarily all of them) are listed below:

Iran. All telephone numbers in Iran are 11 digits long (initial 0 plus ten numbers). The first two or three digits after the zero are the area code. The possibilities are: (0xx) xxxx xxxx (for landlines), 09xx xxx xxxx (for cellphones) and 099xx xxx xxx (for MVNO).

Numbering plan. The current dialling plan is in force since 4 June 2011 when a wide-ranging reform took place. Specifically, area codes were updated to start with 2 or 3, mobile numbers came to begin with the digit 5, and some geographical numbers were padded with an additional digit 2 or 3 immediately after the area code to the total number of digits equalling 9.

As of 2021 Thailand has nearly 100 "hotline" telephone numbers to call for assistance. They include 911 or 191 for emergencies, [5] fire, or unwanted intruding animals; 1699 or 1669 (or 1646 or 1554 in Bangkok) for medical emergencies; tourist police, 1155; car theft, 1192; a taxi refusing a trip, 1584; road accidents, 1146.

Telephone numbers in the Philippines follow an open telephone numbering plan and an open dial plan.Both plans are regulated by the National Telecommunications Commission, an attached agency under the Department of Information and Communications Technology (DICT).. The Philippines is assigned an international dialing code of 63 by ITU-T.Telephone numbers are …

The total length of all phone numbers (area code and the phone number) is constant at 10 digits. For example, the number 7513200000 signifies the area code 751 (the area code for Gwalior) followed by the phone number. Fixed-line or landline numbers are …

A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbering plans are defined in each of the administrative …

0–9. Area code 000 +7; Area code 456; Area codes 809, 829, and 849

Fixed Telephone numbers in Sri Lanka consist of 10-digits in the xxx y zzzzzz format where: "xxx" represents the area code. All area codes begin with 0. "y" represents the operator code for fixed (landline) numbers. "zzzzzz" represents the main telephone number of six digits. Area codes. Province District Area Area Code Western:

900 - Telephone Customer Service Center (They were separated before, 907 for Landline, 902 for Mobile, but since September 2015, they are merged) 933 - Saudi Electricity Customer Services; 937 - Saudi Ministry of Health Services; 939 - Saudi Water and Sewage Services (Eastern Region) 940 - Saudi Municipal Services; 966 - Saudi Natural Disasters