International Mobile Equipment Identity
http://en.wikipedia.org/wiki/IMEI

The IMEI can be displayed on most mobile handsets by dialling *#06#.

Otherwise check the compliance plate under the battery.

Information on IMEISV 353030002286XX3XX

Type Allocation Holder HTC
Mobile Equipment Type HTC Qtek 9090
GSM Implementation Phase 2/2+
IMEI Validity Assessment

|<
Very likely

Information on range assignment

Est. Date of Range Issuance Around Q1 2004
Reporting Body British Approvals Board of Telecommunications (BABT)
Primary Market Europe
Legal Basis for Allocation EU R&TTE Directive

Information on number format

Full IMEI Presentation 353030-00-2286XX-3
Reporting Body Identifier 35
Type Allocation Code 35303000
Serial Number 2286XX
Check Digit 3
Phone Version Number XX

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This would be in large-scale.

Information on phone number range +86 136XXXXXXXX

Number billable as mobile number
Country or destination China
City or exchange location
Original network provider* China Mobile (GSM)