Supra released their first lockbox system in 1955 and since then has grown into a leading global provider of key management systems currently managed today by Real Estate Associations and Multiple Listing Services, including NEREN.

Through Supra, NEREN offers:

  • iBox BT LE
  • Cost: No Charge, boxes are loaned to office
  • Apply Now – e-mail completed form to or fax to (603) 228-9735

A Lockbox is placed on a listed property providing greater security, flexibility and control over access to listings. Lockboxes can only be opened with a valid Supra D-key or eKey. Each lockbox is the property of NNEREN® and are loaned to Brokers to distribute to their agents. Click here for a product brochure.

  • Display Key (dKEY)
  • Cost: $91.50 semi-annually billed by Supra in August and February, a $50.00 one-time activation fee and $7.00 shipping fee.
  • Apply Now – e-mail completed form to or fax to (603) 228-9735

The key is the device used to open the iBox. Also referred to as a “dKEY”, this device provides basic functionality and is easy to use. Included are the keypad, cradle, & cords. dKEYS are the property of NNEREN® and on lease to the Agent’s office. Click here for a product brochure.

  • Electronic Key (eKEY)
  • Cost: $15.25 (basic) 
  • $25.56 (professional) monthly 
  • For a list of compatible devices click here
  • Apply Now– e-mail completed form to or fax to (603) 228-9735

Also referred to as an “eKEY”, this key type allows you to open iBoxes with your smartphone! Over 50 Smartphones are approved for use from iPhone, BlackBerry, Android, Windows Mobile, and Palm. Some devices require additional hardware. Click here for a eKEY Basic product brochure. Click here for a eKEY Professional product brochure.

Keypad Cooperation

If you need your keypad to cooperate with a MLS PIN issued lockbox, please forward the Supra Cooperating Keypad Form to NEREN.

Keypad Cancellation

To cancel eKey service, a Cancellation Form should be submitted to NEREN.  To cancel dKey service, the keypad and all accessories should be mailed to NEREN at 45 Constitution Avenue, Concord, NH 03301.  Charges by Supra will continue until service is cancelled.

One-Time User Instructions

Supra keyholders can invite non-supra keyholders to access their Bluetooth iBox (the iBox BT) using their smartphone or other approved device. The device must be on the list of compatible devices, which can be found on under the “Compatible eKEY Devices” link.

If you are having issues with your keypad or fob, contact Supra (877-699-6787) for a reference code and further instructions. Also, feel free to e-mail