MEID and EUIMID Migration

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Executive Summary

It has been known for several years that the ESN numbering resource, 4 used for both the handset's Electronic Serial Number and for R-UIM UIMID 5 codes, is close to exhaustion. Due to stringent conservation and reclamation of 6 codes the life of the resource was extended several years beyond the first 7 predictions. However, the last virgin (never before assigned) ESN code was 8 assigned in 2008 and the last applications for assignments using reclaimed codes 9 were accepted by the administrator (TIA) on June 30th 2010.

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