What Does 999 Mean? (Using 999 Online)999 means "Emergency Services Number in the UK".
Definition for 999999 means "Emergency Services Number in the UK". This is the most common definition for 999 on Snapchat, WhatsApp, Facebook, and Twitter. Here is some more information about 999:
|Definition:||Emergency Services Number in the UK|
1: Easy to guess
Adults and Teenagers
Using 999 on a Cell Phone (SMS Texts, Whatsapp, and Yubl)