What numbers are you referring to? Do you mean the ICCID ID for the SIM card? Your SIM Card number can also be displayed within your device. If I misunderstood what you are referring to, please share more details to help us understand your needs. -Bobby Johnson
From the TechTarget website: The short message service center (SMSC) is the portion of a mobile phone network that handles text message operations. Each SMSC has an address identifying it on the network. The SMSC address is the same format as an international standard phone number. The SMSC address is part of the mobile network provider's configuration and is included on the SIM card or in the network provisioning package when the phone is initialized.