Subject: IMS Wireless Block Identifier update
From: IMS Customer Service <[email-masked]>
To: [email-masked]
Date: Sun, 8 Apr 2018 15:15:17 -0400 (EDT)

The IMS Wireless Block Identifier file has been updated, please go to http://www.ims-dm.com, enter your username and password, and download the latest file.

IMPORTANT NOTICE:  We have made some improvements to the Wireless Block Identifier application.  Don’t worry, there are no changes to the files you receive or frequency you receive them.  
We have created an Audit file, similar to our Ported Number Audit file, which lets you create a wireless Block file for any past date.  You only need to download this data if you need to determine what numbers were wireless/landlines on a given past date.
Also similar to the ported number process, on the wireless Block Download page we have included a link to our wireless identification database which will initiate a quick query to determine if a number is wireless or landline.  The query, however, is restricted to 4 telephone numbers at a time.
We anticipate that you will never have to use these features, but they are available if you need them.

Please e-mail us at [email-masked] if you have questions about the file or about your account.