ARIN and Microsoft Recognize Transfer of IP Addresses Per Community Policy

April 25, 2011 by  

Webmaster ToolboxChantilly, VA – The American Registry for Internet Numbers (ARIN) announced that Microsoft and ARIN have reached agreement that certain Internet Protocol (IP) number resources being transferred to Microsoft from the Nortel bankruptcy in US Bankruptcy Court in Delaware will be placed under a registration services agreement between ARIN and Microsoft.

ARIN President and CEO John Curran stated he was pleased that Microsoft has followed the Internet community’s adopted policies for such transfers: “Microsoft has demonstrated important leadership in this matter, and ARIN is pleased to be working with them for the good of the Internet community.”

Microsoft Corporate Vice President Dayne Sampson noted that Microsoft has a long standing positive and cooperative relationship with ARIN:  “ARIN performs vital functions for the Internet community and Microsoft looks forward to continued work with ARIN during this period of historic growth and change in the IP number resources arena.”

With the depletion of unissued IPv4 addresses looming globally, the ARIN community has developed a transfer policy designed to permit those with unneeded address space to transfer their right to use them to other organizations that can demonstrate the need for the resources.

The specified-transfer policy allows market incentives to drive better utilization of IPv4 address resources.  The transfer of IP resources to Microsoft took place using this relatively new policy.

About the American Registry for Internet Numbers
ARIN is the nonprofit corporation that manages the distribution of Internet number resources – IPv4, IPv6, and Autonomous System numbers – in its service region, which includes Canada, many Caribbean and North Atlantic islands, and the United States. More information on ARIN and IPv6 adoption is available at and

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