(0141) 630 xxxx seems to be used by BT for Croftfoot and Springburn.
The country code and area code of Habila, Sudan is 249, (0)638.
The country code and area code of Choya- La, Mexico is 52, (01)638.
UK telephone area code 0141 is greater Glasgow. A number beginning 0141 638 is most likely a BT landline in Giffnock; however, with number portability, any specific 0141 number could be located anywhere in the greater Glasgow 0141 area, served by any local carrier.
Switch ON your phone without SIM Card.Compose: #7465625*638*CODE# (or *#7465625*638*CODE#).Device should say: Network Lock Deactivated
79.75
What does 638 mean
638
#7465625*638*Code# = Disables Network lock some newer models of samsung require a unlock code because they have a new protection.
638 + 577 = 1215
253 + 638 = 891
507-638 = -131
638 x 2.9 = 1850.2