The Irish have provided short numbers to contact emergency services to swiftly enable the residents and visitors to reach for help in situations of urgency. The calls using these numbers are free, besides accessing them is possible with landlines and mobile phones.
Key Emergency Numbers
There are two main short and easy to remember emergency numbers present in Ireland, namely,
112
999
Both numbers connect to police, fire, ambulance, and coast Ireland Phone Number Data guard emergency services. No difference in response or service therefore exists between the two numbers; thus, both numbers can be dialed by callers depending upon preference or availability.
Why Two Numbers?
In truth, having two numbers for emergencies does appear a bit redundant but it's in large part due to international standards and practices. It is the standard emergency number to call for all European Union member states and, therefore, a common number for travelers in Europe. The classic emergency number of 999 applies in Ireland, as has been used widely in other countries like the United Kingdom and others in the Commonwealth. This in turn ensures that no matter where one is or what their background concerning emergency services has been, at least one of these numbers rings a bell.
Reaching Emergency Services
How to call the emergency services in Ireland is relatively straightforward:

When using a mobile phone or landline, dial 112 or 999.
In the event of a language problem, operators are trained for and can handle various languages; support is also there in case some non-Irish speaker demands it .
Other Important Numbers
While 112 and 999 service is used in all emergency cases, there are some other services, too, which use short dialing numbers for particular needs:
1850 100 100: Ireland's National Poisons Information Centre number.
01 852 6200: A confidential helpline for mental health crisis situations-most definitely not an emergency number, yet vital when it comes to one's mental health.
Conclusion
Irish emergency services are easily accessible with two short numbers: 112 and 999, both connecting callers with necessary assistance in urgent situations. The ease of the numbers guarantees that people of Ireland can source the emergency services they need without much hassle.