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Neels Hofmeyr nhofmeyr at sysmocom.deHi folks,
to share a finding: the question was whether 2G and 3G cells may share location
area codes.
A glance at some (mostly anonymized) live data from GSM cell monitoring
hardware, in use by one of our customers, answers that quite clearly:
Network MCC MNC LAC CID Type Band
FirstOperator 123 4 678 C669 GSM GSM900
FirstOperator 123 4 678 CF5A GSM GSM900
FirstOperator 123 4 678 CF2A GSM GSM900
FirstOperator 123 4 678 C695 GSM GSM900
FirstOperator 123 4 678 CF30 GSM GSM900
FirstOperator 123 4 678 CF58 GSM GSM900
FirstOperator 123 4 678 6869 UMTS UMTS2100
FirstOperator 123 4 678 C69B GSM GSM900
SecondOperator 123 5 9AB DEEF GSM DCS1800
SecondOperator 123 5 9AB E15D UMTS UMTS2100
SecondOperator 123 5 9AB E163 UMTS UMTS2100
SecondOperator 123 5 9AB E080 GSM DCS1800
LACs are shared across 2G ("GSM" here) and 3G ("UMTS") technologies, only the
cell IDs are guaranteed to differ.
Happy hacking,
~Neels
--
- Neels Hofmeyr <nhofmeyr at sysmocom.de> http://www.sysmocom.de/
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