The "09" prefix in the Philippines refers to the starting digits of mobile phone numbers. These prefixes help identify the mobile network operator associated with a number. Different prefixes within the "09XX" range correspond to different networks such as Smart, Globe/TM, TNT, Sun, and DITO. Here are some examples of "09" prefixes and their corresponding networks:

• 0908 - Smart
• 0909 - TNT (Talk 'N Text)
• 0907 - TNT
• 0917 - Globe/TM
• 0918 - Smart
• 0920 - Smart
• 0930 - TNT
• 0931 - Sun
• 0937 - Globe/TM
• 0945 - Globe/TM
• 0991 - DITO
• 0895 - DITO

The full list includes many more prefixes assigned to these networks, and the prefix can indicate the original network of the number before number portability was introduced

. If you want to identify the network of a specific "09XX" number, apps like PreFIX PH can help by labeling and sorting contacts by network based on these prefixes

. In summary, "09" prefixes are the initial digits of Philippine mobile numbers used to determine the mobile network operator, with each prefix assigned to a specific network like Smart, Globe, TNT, Sun, or DITO