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The GoTop protocol

The protocol of GoTop devices, from GOTOP Limited, a Shenzhen manufacturer founded in 2000 with its own plant and own-brand manufacturing for third parties.

It is spoken by the GT03 and the AT-1, entry range. They are configured by text message, with the SIM's APN and the server address.

Which port it comes in onOur server listens for the GoTop protocol on port 6050. That is the port you set on the device, together with the server address. Point it somewhere else and the data still leaves, but the server cannot read it.
Careful with what other sites tell youThis manufacturer produces under <strong>customers' own brands</strong>, so the same device circulates under different names. If a device «from another brand» comes up with this protocol, it is not an error: it is the same hardware in a different box.

Build the configuration command

We do not have this protocol's commands yetWe would rather tell you than make them up. We only publish the ones we have checked against the manufacturer's manual or against a real device. If you have them confirmed, send them to us and we will add them.
Send us the commands

Devices that use it

GotopSee this brand's devices

Receive this protocol on your own platform

No server to set up and nothing to program: the platform already reads this protocol. You add the brand and the domain.

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Back to the lookup

IMEI lookupDevice identification tool. We do not perform unlocking, carrier release or mobile blacklist checks, and we are not affiliated with the GSMA.

Where the data comes fromPublic mobile TAC database (MIT licence, Copyright (c) 2026 Moaz Ebrahem), TAC codes published by Teltonika on its official wiki, and the protocol observed on devices connected to the Appogio platform. We publish no full IMEI and no customer data.

Frequently asked questions

Which devices speak the GoTop protocol?

The GT03 and the AT-1, entry range, from GOTOP Limited (Shenzhen, founded 2000).

This protocol came up on another brand's device — is that an error?

No. GOTOP manufactures under customers' brands, so the same hardware circulates under different names. The protocol gives away who built it.

How do I configure it?

By text message: the SIM's APN and the server address.