Default Messaging wakelock

I have only had my nexus for a few days and last night after fully charging it ran down after only 9 hours. It was messaging service, battery stats has messaging at 52 % . When checking the settings I noticed my MMSC setting is http://metropcs.mmsmvno.com/mms/wapenc

I'm on tmobile so should that be changed? Seems like I can send mms ok as is but could this have caused the wakelock?

From what I can find the Tmo mmsc setting should be: http://mms.msg.eng.t-mobile.com/mms/wapenc

Can somebody confirm this is correct? Thank you.
TmoUS eastcoast
G2 iphone 5
Sensation GS3
BB 9810