# Convert device id hex to string **URL:** \ **Category:** AirLink Routers\ **Created:** [August 13, 2021, 2:50pm UTC](https://forum.sierrawireless.com/t/convert-device-id-hex-to-string/24561 "2021-08-13T14:50:04Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![steven\_mcneese](https://avatars.discourse-cdn.com/v4/letter/s/898d66/32.png) [@steven\_mcneese](https://forum.sierrawireless.com/u/steven_mcneese)\ **Post date:** [August 13, 2021, 2:50pm UTC](https://forum.sierrawireless.com/t/convert-device-id-hex-to-string/24561/1 "2021-08-13T14:50:04Z")
I am evaluating the LX60. After struggling to get it to stream to server 1 IP address, I realized they are using UDP and not TCP. So that is working now. I have the Device Id configuration set to Phone Number. It is coming across in the NMEA sentences and is supposed to be HEX. This is not any HEX I can identify so I am struggling how to convert his to the phone number. The 9 bytes before the NMEA string start are: ```auto 255,235,114,41,0,213,1,0,0 ``` Anybody have any C# examples of how this is done. ---
**Author:** ![steven\_mcneese](https://avatars.discourse-cdn.com/v4/letter/s/898d66/32.png) [@steven\_mcneese](https://forum.sierrawireless.com/u/steven_mcneese)\ **Post date:** [August 13, 2021, 8:28pm UTC](https://forum.sierrawireless.com/t/convert-device-id-hex-to-string/24561/2 "2021-08-13T20:28:25Z")
The AT \*DEVICEID? command returned ```auto 0x000001D5002972EB ``` But still cannot figure out what that is as it related to the phone number ---
**Author:** ![steven\_mcneese](https://avatars.discourse-cdn.com/v4/letter/s/898d66/32.png) [@steven\_mcneese](https://forum.sierrawireless.com/u/steven_mcneese)\ **Post date:** [August 15, 2021, 6:06pm UTC](https://forum.sierrawireless.com/t/convert-device-id-hex-to-string/24561/3 "2021-08-15T18:06:04Z")
From OP 255 = FF 235 = EB 114 = 72 41 = 29 0 = 00 213 = D5 1 = 01 0 = 00 0 = 00 So in the NMEA sentence starts with FF but then the next 8 bytes which represent the phone number are reversed from what the \*DEVICEID? command returns. But still even doing that I cannot get it to match the phone number of the SIM card. Not sure why any of this is not documented in detail. ---
**Author:** ![barney.a.goette](https://avatars.discourse-cdn.com/v4/letter/b/76d3ee/32.png) [@barney.a.goette](https://forum.sierrawireless.com/u/barney.a.goette)\ **Post date:** [August 7, 2023, 6:29pm UTC](https://forum.sierrawireless.com/t/convert-device-id-hex-to-string/24561/4 "2023-08-07T18:29:03Z")
Why is there still no answer? How do we parse the $DEVID field? ---
**Author:** ![steven\_mcneese](https://avatars.discourse-cdn.com/v4/letter/s/898d66/32.png) [@steven\_mcneese](https://forum.sierrawireless.com/u/steven_mcneese)\ **Post date:** [August 7, 2023, 6:44pm UTC](https://forum.sierrawireless.com/t/convert-device-id-hex-to-string/24561/5 "2023-08-07T18:44:45Z")
I figured it out. When I get back to the office I will post the code. ---
**Author:** ![steven\_mcneese](https://avatars.discourse-cdn.com/v4/letter/s/898d66/32.png) [@steven\_mcneese](https://forum.sierrawireless.com/u/steven_mcneese)\ **Post date:** [August 7, 2023, 7:06pm UTC](https://forum.sierrawireless.com/t/convert-device-id-hex-to-string/24561/6 "2023-08-07T19:06:01Z")
Mine is set to include the IMEI in the location report being sent to the server UDP. > string locationReport = Encoding.ASCII.GetString(bytes); > string IMEI = Convert.ToInt64(locationReport.Substring(11,14), 16).ToString(); _locationReport_ is a string representing an entire record send via UDP to the server listener from the modem. Hope this helps. ---
**Author:** ![barney.a.goette](https://avatars.discourse-cdn.com/v4/letter/b/76d3ee/32.png) [@barney.a.goette](https://forum.sierrawireless.com/u/barney.a.goette)\ **Post date:** [August 7, 2023, 7:27pm UTC](https://forum.sierrawireless.com/t/convert-device-id-hex-to-string/24561/7 "2023-08-07T19:27:14Z")
So I see you’re using `Substring(11, 14)`, my device id is coming as 16 characters (after `0x`). Are you skipping the first 2? I am testing with `Phone Number` as the ID, and when I convert to an `Int64` it isn’t correct.