Below I’ve compiled a list of the most common UK carriers and their GPRS/EDGE settings. If any are missing, let me know.

O2

Homepage: http://wap.o2.co.uk/

APN address (contract): wap.o2.co.uk

APN address (PAYG): payandgo.o2.co.uk

Gateway (IP) address : 193.113.200.195

Username : o2wap (contract) / payandgo (PAYG)

Password: password

Session type: Continuous / permanent

Authentication: Normal

Security: Off

Port number: 9201

Vodafone

Homepage: http://wap:1999/vodafone.wml/

APN address (contract): wap.vodafone.co.uk (Contract)

APN address (PAYG): pp.vodafone.co.uk (PAYG)

Gateway (IP) address : 212.183.137.12

Username :wap

Password: wap

Session type: Continuous / permanent

Authentication: Normal

Security: Off

Port number: 8799

Orange

Homepage: http://orange.multimedia/

APN address (contract): orangewap

APN address (PAYG): paygwap

Gateway (IP) address : 192.168.71.35

Username : Orange

Password: Multimedia

Session type: Continuous / permanent

Authentication: Normal

Security: Off

Port number: 9201

T-Mobile

Homepage: http://wap.t-mobile.co.uk/

APN address: general.t-mobile.uk

Gateway (IP) address : 149.254.1.10

Username : User

Password: one2one

Session type: Continuous / permanent

Authentication: Normal

Security: Off

Port number: 8080

Taken from :http://www.filesaveas.com/gprs.html