An internal "import format" reference document specifies a "Mobile Identity import format" that lets an operator bulk-import subscriber targeting rules by IMSI prefix wildcard (e.g. "5114*") or by phone-number wildcard/exact match (leading "$"/"*" wildcard syntax), enabling mass subscriber-identity targeting by carrier/country IMSI block rather than one subscriber at a time.
Mobile Identity import format: -->Keyword IMSI 5114* -->Keyword Phone Number *5114 $5114 5114* 5114
capabilitysubscriber-correlation