US Handset Serial Number Databases
US operators maintain their own stolen and blacklisted cellphone
databases. As of the 31st October 2012 the GSM operators AT&T and
T-Mobile began sharing their databases. CDMA operators Verizon and
Sprint have taken the decision to merge their databases but that will
not be complete until November 2013, so we are told.
The said objective of these initiatives are to improve track and trace.
As an example, GSM uses a 56-bit decimal digit s/n, whereas CDMA uses a
56-bit hexadecimal digitals s/n. However, in the US there are variations
of s/ns to consider.
The engine for these changes is driven by the FCC initiative - http://www.fcc.gov/document/announcement-new-initiatives-combat-smartphone-and-data-theft
To accommodate this and other cellphone/cellular changes I have altered
my CDMA training material and GSM training material. As consequence
these changes will also have an impact on WCDMA and LTE, either on a
national level or international level. These training materials have also changed, too.
Institute for Digital Forensics (IDF) - LinkedIn
Mobile Telephone Examination Board (MTEB) - LinkedIn