Updated Files Available Daily

Wireless - Ported Numbers

Learn how IMS enhances the Ported number files.

Federal Regulations restrict companies when making unsolicited calls to wireless numbers. However they now permit individuals to:

  • Transfer the telephone numbers assigned to their wired home or office telephone to their wireless cell phones.
  • Transfer the telephone numbers assigned to their wireless telephone to their wired home or office telephones

To correctly identify wireless numbers, telemarketers must use the Wireless Block Identifier File and the Wireless Ported Number File together.  IMS has been providing wireless identification products and services to Direct Marketers and Telemarketers since 2002 as well as do not contact lists for telephone, email, US and foreign mail.

The Ported Number files provide telemarketers with the information they need to identify:

  • Numbers that appear to belong to wired land lines but are now assigned to wireless telephones. (Telemarketers must avoid making unsolicited sales calls to these numbers.)
  • Numbers that appear to belong to wireless telephones but are now assigned to wired land lines. (If these numbers are not on Do Not Call lists, telemarketers may call them.)

How to use the Wireless Files

The 2 ported files will be zipped together (the Audit file is available as a separate download) and distributed daily via download from our web site. The use and format of each file is as follows:

  • The Landline-To-Wireless file must be used in your wireless identification process to further identify and suppress wireless records from your telemarketing files. Each record contains the 10 digit telephone number and date the number was last placed on the file. It is distributed in a comma delimited format. (This data must be used in conjunction with the wireless block identifier file to identify all wireless telephone numbers.)
  • The Wireless-To-Landline file may be used to reinstate records previously identified as wireless and suppressed accordingly. Each record contains the 10 digit telephone number and date the number was last placed on the file. It is distributed in a comma delimited format.
  • The audit .txt file contains all Ported Numbers that have been deleted or deleted and reinstated on the Ported Number list. This comma delimited file, distributed for audit purposes and not intended for day-to-day use, contains deleted numbers, the date they were originally placed on the list, the date they were deleted from the list and, if reinstated, the date they were reinstated. If a number was reinstated multiple times, it would appear on this file more than once.
  • The Readme file contains the file layouts and other useful information

Also available to Ported Number subscribers is our on-line lookup of telephone numbers to assist subscribers who occasionally need to know if single numbers are either wireless or landline.

How to subscribe to the Wireless - Ported Numbers File:

The application for the Wireless - Ported Numbers file will be available for download after agreeing to our standard terms and conditions. OUR ARRANGEMENT WITH NEUSTAR, THE CUSTODIAN OF THE PORTED INFORMATION, REQUIRES THE EXECUTION OF A SEPARATE SUBSCRIPTION AND AGREEMENT FOR EVERY COMPUTER/SERVER USED TO HOST THE FILES(i.e., if the files are used on three computers, three separate subscriptions are required). YOU MUST COMPLETE OUR SUBSCRIPTION AGREEMENT AND NEUSTAR'S END USER AGREEMENT AND RETURN THEM BOTH TO US BEFORE RECIEVING YOUR USER NAME, PASSWORD AND DOWNLOAD INSTRUCTIONS. PLEASE CLICK ON "SUBSCRIPTION FORM" BELOW TO OBTAIN THE AGREEMENTS

New files will be available on our web server daily.

Subscriptions are priced at $1,180 per year. No partial year subscriptions are offered.

Wireless Ported Numbers File Frequently Asked Questions

For information on how to have the Ported Number files delivered to your secure ftp server daily, download the Automated File Delivery Service PDF

How to subscribe to The Wireless-Ported Numbers File:

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