To activate internet settings under Orange network:

send SMS “WAP” to 1234 and receive the settings configuration
you will receive a notification that the installation was successful
save and activate Orange WAP under web > go to address (http://wap.orange.co.ke)

Balance: *131#
Child Helpline: 116
Customer Care (experience): 100 or +254750100100
Emergency: 112 or 999
Loading airtime: *130*secret 14-digit number#

An equivalent of Safaricom’s Please Call Me on the YU network is the Talk2Me. If you have run out credit, YU allows you upto 5 free requests to get a friend or family to call you back.
Simply dial *133*Phone number#
Press the Call button.
**YU to YU calls only.

Below are the settings you need to Key in your phone to be able to access the internet on the Yu network.
GPRS / EDGE / WAP
*APN (Access Point): internet
*WAP Gateway IP address: 10.4.16.6
*WAP Server URL: http://www.yu.co.ke
*Port: 8080
MMS
*APN: internet
*Wap Gateway IP Address for MMS: 10.4.16.6
*Messaging Server URL: http://10.4.16.22/servlets/mms
**No username/ password is required for these settings and may vary handset to handset.

Before you start sharing your YU airtime, you must first register or activate your unique PIN before you use it for the first time.
Activating your PIN
-dial: *140*0000*new PIN#
Now you are ready to share your airtime:
-dial: *140*Amount*Phone number*PIN#