I am Just going to explain this because of some Nigerians that still don't know some info about their Network gprs configuration
ZAIN CONFIGURATION account Name:-ZAIN.
Home page:- http://wap.ng.zain.com.
Username:-Internet. Password:-Internet.
Access Point or APN:-internet.ng.zain.com.
IP or Proxy Address:-172.018.254.005 Port:-8080 ______________________________
MTN CONFIGURATION Account Name:-MTN.
Home page:- http://wap.mtnonline.com. Username:-web. Password:-web. AccessPoint or APN:-web.gprs.mtnnigeria.net.
IP or Proxy Address:-010.199.212.002 . Port:8080 ______________________________
ETISALAT CONFIGURATION Account Name: ETISALAT. Homepage:- http://www.etisalat.com.ng OR http://mobile.etisalat.com.ng. Username:-wap. Password:-wap. Access Point or APN:-etisalat.
IP or Proxy Address:-010.071.170.005 Port:8080 ______________________________
GLO CONFIGURATION Account Name:-GLO.
Homepage:- http://wap.gloworld.com. Username:-wap. Password:-wap. Access Point or APN:-glosecure.
IP or Proxy Address:-010.100.098.022 Port:8080.

ZAIN CONFIGURATION account Name:-ZAIN.
Home page:- http://wap.ng.zain.com.
Username:-Internet. Password:-Internet.
Access Point or APN:-internet.ng.zain.com.
IP or Proxy Address:-172.018.254.005 Port:-8080 ______________________________

Home page:- http://wap.mtnonline.com. Username:-web. Password:-web. AccessPoint or APN:-web.gprs.mtnnigeria.net.
IP or Proxy Address:-010.199.212.002 . Port:8080 ______________________________

IP or Proxy Address:-010.071.170.005 Port:8080 ______________________________

Homepage:- http://wap.gloworld.com. Username:-wap. Password:-wap. Access Point or APN:-glosecure.
IP or Proxy Address:-010.100.098.022 Port:8080.