connectiontype 6 means Cellular Network - 4G

A fourth-generation (LTE) cellular connection; the highest value in OpenRTB 2.5's table.

List: Connection TypesValue 6

When to send it

Send 6 when the device is on a 4G LTE network. Through OpenRTB 2.5 it was the highest value in the list.

Buyers treat 6 as broadband-class mobile data, good enough for standard mobile video. The most common confusion is with 7: phones on early 5G networks can report the LTE link that anchors the 5G connection, so the same session may be labeled differently by different SDKs. Send what the platform reports as active.

Example

{
  "device": {
    "connectiontype": 6
  }
}

Fields that carry it

Other values in connection types

ValueName
1Ethernet; Wired Connection
2WIFI
3Cellular Network - Unknown Generation
4Cellular Network - 2G
5Cellular Network - 3G
7Cellular Network - 5G

The connection types list page explains the whole list and its common mistakes.