10 POINTS QUICK! To call or to let him stew?

I got really worried all week as I hadnt heard back from my bf [sent an email, called a couple times] Only got a text yesterday morning saying 'long time, heres my new number lost my phone. Hope to hear from you soon'. I dont know if he just got his new phone & doesnt have internet but I feel kinda hurt cos I really was stressing out. Should I call him tonight or wait some more days?