Universal emergency numbers vary by country and region, but there are several widely used standards that travelers should know before visiting a new place to ensure they can quickly reach police, ambulance, or fire services in an emergency. In the European Union and many neighboring countries, 112 is the universal emergency number that connects to all emergency services and works from any phone, including mobiles without SIM cards or credit, and it is answered in multiple languages to assist international travelers. In the United States, Canada, and many Caribbean nations, 911 is the standard emergency number for police, fire, and medical emergencies, and it is also increasingly recognized in some other countries that have adopted it alongside local numbers. The United Kingdom uses 999 as its primary emergency number, though 112 also works due to EU alignment, and both connect to the same emergency dispatch system. Australia uses 000 (triple zero) for emergencies, New Zealand uses 111, and India uses 112 (recently unified from separate police 100, fire 101, and ambulance 102 numbers) to provide a single point of contact. In many countries, especially in Asia, Africa, and Latin America, emergency numbers are fragmented by service, so travelers may need to know separate numbers for police (such as 100, 110, or 190), medical ambulances (often 117, 118, or 193), and fire departments (110, 115, or 116), and these vary from country to country. For example, in Peru medical emergencies use 117, police 105, and fire 116, while in Brazil medical and fire use 193 and police use 190. Travelers should research and save the specific emergency numbers for their destination in their phone contacts before departure, ideally with clear labels like "Police [Country]" or "Ambulance [Country]," and they should also note the number for their country's embassy or consulate in case of passport loss, arrest, or major incidents. Many international travelers also register with services like STEP (Smart Traveler Enrollment Program) for U.S. citizens or equivalent programs from other governments, which provide emergency alerts and assistance, and they carry the contact information for international emergency assistance services included with their travel insurance or credit cards.