Phone

[35C3]

*#100#=Number request

*#101#=IMSI request

[E-Plus]

#E-Plus, see

#http://www.prepaid-wiki.de/index.php5/E-Plus

*100#=Balance enquiry

[FYVE]

#FYVE, see

#http://www.prepaid-wiki.de/index.php5/FYVE#Servicefunktionen

*100#=Balance enquiry and charging menu

*106#=Balance enquiry

[Monacell]

#like Virgin

*144#=Balance enquiry

[MTN]

#MTN, see

#http://www.mtn.co.za/Support/faq/Pages/USSD.aspx

*141#=Balance enquiry

*141*4#=Tariff Analyser and Priceplan Migrations menu

*141*4*0#=Tariff Analyser

*141*6*0#=Data bundle cancellation

*141*7*0#=SMS bundle cancellation

*141*8#=Yello Fortune Entries

[NRJ]

#like Virgin

*144#=Balance enquiry

[Telekom.de]

*2221#=Multi-SIM: current status

*2222#=Multi-SIM: set card as default

[Virgin]

#Virgin Mobile, see

#http://fr.wikipedia.org/wiki/Unstructured_Supplementary_Service_Data

*144#=Balance enquiry

[Vodafone]

#Vodafone India, see

#http://broadbandforum.in/vodafone-3g/66861-important-vodafone-sms-codes-ussd/

*141#=Balance enquiry

*444#=Self-service portal

*225*6#=See unused GPRS data and expiry

*225*3#=See unused 3G data and expiry

*444*5#=Activate 30MB, 1 day, GPRS plan