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Forum » Tutorials » BlackBerry Device Tutorials » What are ESN/IMEI/MEID. (Explanation of ESN/IMEI/MEID numbers.)
What are ESN/IMEI/MEID.
blackngray70Date: Sunday, 2009-06-14, 7:31 AM | Message # 1
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ESN/IMEI/MEID are usually found inside the phone under the battery, Options/Status, by pressing ALT+shift+H, or dial #4357* send.

ESN (Electronic Serial Number) are control numbers used for cell phone activation in wireless carrier networks.  ESN-DEC are 12 numeric digits long and ESN-HEX are 8 numeric digits long.

IMEI (International Mobile Equipment Identity) are numbers unique to every GSM and UMTS mobile phone used to identiry valid devices.  IMEI are 15 digits long.

MEID (Mobile Equipment Identifiers) are unique numbers found on CDMA mobile phones.
 MEID are 15 alpha-numeric digits long followed by six zeros and a serial number.

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bbguruDate: Monday, 2009-06-15, 8:28 PM | Message # 2
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Never knew some of this stuff, thanks for the great info. Just a question, how can knowing this help the "general" user?
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blackngray70Date: Monday, 2009-06-15, 9:02 PM | Message # 3
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Quote (bbguru)
Never knew some of this stuff, thanks for the great info. Just a question, how can knowing this help the "general" user?

A lot of people don't know the difference. GSM carriers use IMEI and CDMA use ESN and MEID.

A lot of people don't know that RIM exhausted all the ESN numbers and started using MEID.

This question has been asked many times "What's the difference between a 8330m and a 8330?".

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bbguruDate: Monday, 2009-06-15, 9:24 PM | Message # 4
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Ah, very interesting to know. Thanks again blackngray!
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Forum » Tutorials » BlackBerry Device Tutorials » What are ESN/IMEI/MEID. (Explanation of ESN/IMEI/MEID numbers.)
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