Effective November 30, 2023, Canada will adopt the 988 number for mental health and suicide prevention. If your account utilizes 988 extensions, please ensure you update them to alternative digits.
To prevent overlap from emergency codes and international prefixes, the following special service numbers cannot be assigned to phone users. Special service numbers are based on the emergency address assigned to the phone user, common area phone, or Zoom Room.
Note: For all countries, you cannot start extensions with 0.
This article covers:
| Reserved extension | Description |
United States and Canada | |
| 911 | Emergency |
| 988 |
Suicide prevention hotline (US only) |
| 933 | Commonly used by 911 operator |
| 112 | Emergency number for EU; usually forwards calls to emergency services |
| 999 | Emergency number for the United Kingdom; usually forwards calls to emergency services |
| 211 | Community information and referral services |
| 311 | Non-emergency police and other governmental services |
| 411 | Local directory assistance |
| 511 | Traffic and transportation information |
| 611 | Phone line repair services; phone support line if dialing from a softphone |
| 711 | Relay service for people with hearing or speech disabilities |
| 811 | Before-you-dig services in US; non-urgent telehealth services in Canada |
United Kingdom | |
| 112 | Emergency number for the EU |
| 999 | Emergency number for the United Kingdom |
| 911 | Usually forwards calls to emergency services |
| 933 | Commonly used by 911 operator |
| 100 | Local operator assistance for landlines |
| 101 | Non-urgent crime and community safety calls |
| 105 |
Local electricity network operators |
| 111 | Non-emergency calls to National Health Service (NHS) |
| 123 | Speaking clock service |
| 155 | International operator assistance |
| 144 | Withhold number (service provided by carriers) |
| 1470 | Release number (service provided by carriers) |
| 1471 | Return call (service provided by carriers) |
| 1475 | Removes details of last call from 1471 (service provided by carriers) |
| 1477 | Automatic Call Trace (service provided by carriers) |
| 1571 | Voicemail (service provided by carriers) |
Argentina | |
| 911 | Emergency |
| 100 | Fire |
| 101 | Police |
| 107 | Ambulance |
| 110 | Directory service |
Australia | |
| 000 |
Emergency |
| 106 | TTY emergency (for the hearing impaired) |
| 112 | Alternative access to emergency services |
| 132500 | State Emergency Service (SES) |
| 131444 | Non-emergency police |
Austria | |
| 112 | Emergency |
| 118 | Directory service |
| 122 | Fire department |
| 133 | Police |
| 144 | Ambulance |
Belgium | |
| 112 | Emergency |
| 100 | Fire brigade and ambulance |
| 101 | Police |
Brazil | |
| 190 | Police |
| 192 | Ambulance |
| 193 | Fire |
Bulgaria | |
| 112 | Emergency |
Chile | |
| 131 | Ambulance |
| 132 | Fire |
| 133 | Police |
China | |
| 110 | Police |
| 119 | Fire |
| 120 | Ambulance |
| 122 | Traffic accident |
| 999 | Private ambulance service (Beijing only) |
| 114 | Directory assistance |
Columbia | |
| 112 | Police |
| 119 | Fire |
| 123 | Emergency |
| 125 | Ambulance |
| 132 | Ambulance |
| 165 | Anti-kidnapping hotline |
Costa Rica | |
| 911 | Emergency |
| 112 | Emergency (mobile) |
Croatia | |
| 112 | Emergency |
| 192 | Police |
| 193 | Fire |
| 194 | Ambulance |
Cyprus | |
| 112 | Emergency |
Czech Republic | |
| 112 | Emergency |
| 150 | Fire |
| 155 | Ambulance |
| 156 | Municipal police |
| 158 | Police |
Denmark | |
| 112 | Emergency |
| 114 | Non-emergency police |
Ecuador | |
| 911 | Emergency |
| 101 | Police |
| 102 | Fire |
| 131 | Ambulance |
Estonia | |
| 112 | Emergency |
Finland | |
| 112 | Emergency |
France | |
| 112 | Emergency |
Germany | |
| 112 | Emergency |
| 110 | Police |
| 115 | Civil services |
Greece | |
| 112 | Emergency |
| 100 | Police |
| 166 | Ambulance |
| 199 | Fire |
Hong Kong, China | |
| 999 | Emergency |
| 112 | Emergency (mobile) |
Hungary | |
| 112 | Emergency |
| 104 | Ambulance |
| 105 | Fire |
| 107 | Police |
India | |
| 100 | Police |
| 102 | Ambulance |
| 108 | Ambulance service operated in 22 states |
| 101 | Fire |
| 112 | Alternative emergency number |
| 1906 | Gas leakage |
| 1363 | Tourist Helpline |
| 1098 | Child Helpline |
| 104 | Blood Needs |
| 181 | Women Helpline |
Ireland | |
| 112 | Emergency |
| 999 | Emergency |
Israel | |
| 100 | Police |
| 101 | Ambulance |
| 102 | Fire |
Italy | |
| 112 | Emergency |
| 113 | Police |
| 115 | Fire |
| 118 | Ambulance |
Lithuania | |
| 112 | Emergency |
Luxembourg | |
| 112 | Emergency |
Mexico | |
| 911 | Emergency |
Netherlands | |
| 112 | Emergency |
New Zealand | |
| 111 | Emergency |
| 105 | Non-emergency police number |
Norway | |
| 112 | Emergency |
| 107 | Police |
| 110 | Fire |
| 113 | Ambulance |
Panama | |
| 911 | Emergency |
| 102 | Directory Assistance |
| 103 | Fire or ambulance |
| 104 | Police |
Peru | |
| 911 | Emergency |
| 100 | Domestic violence |
| 103 | Telephone information number |
| 105 | Police |
| 106 | Ambulance (SAMU) |
| 115 | Civil defense |
| 116 | Fire |
| 117 | Ambulance |
Poland | |
| 112 | Emergency |
| 999 | Emergency |
Portugal | |
| 112 | Emergency |
| 117 | Fire |
| 144 | Social emergency |
Romania | |
| 112 | Emergency |
Singapore | |
| 999 | Emergency |
| 995 | Singapore Civil Defence Force - fire or emergency ambulance |
Slovakia | |
| 112 | Emergency |
| 150 | Fire |
| 155 | Ambulance |
| 158 | Police |
| 159 | Municipal police |
Slovenia | |
| 112 | Emergency |
| 113 | Police |
South Korea | |
| 112 | Emergency police |
| 119 | Fire or ambulance |
Spain | |
| 112 | Emergency |
| 118 | Directory assistance |
Sweden | |
| 112 | Emergency |
| 110 | Help line |
| 11313 | Information during accidents and crises |
| 11414 | Police |
Switzerland | |
| 112 | Emergency |
| 117 | Police |
| 118 | Fire |
| 144 | Ambulance |
Turkey | |
| 112 | Emergency |
| 110 | Fire |
| 115 | Police |