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A request headers is an HTTP header that the client sends to the server.
HTTP request headers list | Browser Headers Viewer
X-Att-Deviceid| Type | Non-standard |
| Subype | AT&T |
| Last seen | 2023-10-21 00:47:46 |
| Note | String MakeModel/Firmware of AT&T Devices. |
| Syntax | X-Att-Deviceid: <Model/Firmware> |
Example header value:SAMSUNG-SGH-I747/I747UCUEMJB |
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