The term “T-Mobile 2300” can refer to two completely different things: a 5-digit text short code (2300) used for messaging and billing, or the 2300 MHz (Megahertz) frequency band used for 4G LTE and 5G network traffic.
If you are seeing “2300” on your phone bill or in a text message, it refers to a short code for a premium service or message routing. If you are researching phone specifications or network technology, 2300 MHz refers to a specific mid-band frequency sometimes used for capacity.
This article provides a clear answer for both meanings and gives you the tools to address your specific concern.

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T-Mobile 2300 as a Short Code (Billing and Messaging)
A short code is a 5- or 6-digit number used by businesses, organizations, and carriers to send high-volume text messages. When users search for “T-Mobile 2300,” they are most often trying to identify a charge or message from this short code.
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Charges and Value-Added Services (VAS)
If you see a charge labeled 2300 on your T-Mobile bill, it is likely tied to a Value-Added Service (VAS) or Direct Carrier Billing (DCB) service.
- What it is: DCB allows third-party companies (such as mobile gaming companies, news alert services, or contest providers) to place charges directly onto your T-Mobile bill for their services. The 2300 number acts as the identifier or confirmation receipt for this subscription.
- Why it happens: You may have signed up accidentally by clicking a confusing link, responding to a text message, or forgetting to cancel a free trial.
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International Messaging and Routing
In certain cases, particularly when receiving international Multimedia Messages (MMS) or messages from Voice over IP (VoIP) services, the text may originate from a number followed by the location “Mauritius” (e.g., 2300 Mauritius).
- What it is: Some mobile carriers, including T-Mobile, use global SMS gateways to process and route multimedia messages, especially those sent across networks or international borders. The 2300 short code can be used by the carrier’s system to notify the recipient that an MMS has been routed through an international messaging hub (such as one located in Mauritius).
- Safety: While the system itself is legitimate, be highly cautious. Scammers sometimes spoof these short codes. Never click a link or provide personal data in a text message from 2300 unless you have verified it with T-Mobile directly.
Action: How to Stop 2300 Charges and Messages
If you are dealing with unwanted 2300 charges or texts, take these immediate steps:
- Text STOP: For premium subscription services, reply directly to the 2300 short code with the single word STOP. This is the standard command to unsubscribe and should immediately end recurring charges.
- Contact T-Mobile: If the charges persist or the message is suspicious, call T-Mobile Customer Care. They can identify the exact third-party service tied to the 2300 charge and block all future Direct Carrier Billing on your account.
- Request a Block: Ask T-Mobile to place a permanent billing block (or premium service block) on your entire account to prevent any future third-party subscription charges.
- T-Mobile 2300 as a Network Frequency (Band 30 or Band 40)
In the context of cell service, 2300 MHz (2.3 GHz) refers to a specific radio frequency used for 4G LTE and 5G service, corresponding to LTE Band 40 or Band 30.
While T-Mobile USA’s network primarily uses 600 MHz, 1900 MHz, and 2.5 GHz for its core coverage, the 2300 MHz band is relevant for two reasons:
- LTE Band 30 (2300 MHz WCS)
In the United States, the 2300 MHz spectrum is primarily known as LTE Band 30. This band is used by other major carriers (not T-Mobile directly) as a supplementary layer for high-speed capacity in crowded urban areas.
- LTE Band 40 (TDD 2300 MHz)
LTE Band 40 (2300 MHz TDD) is a major frequency band deployed by carriers outside of the United States (including countries in the Middle East and Asia, such as India, China, and Saudi Arabia).
- T-Mobile Relevance: If you are a T-Mobile customer roaming internationally, your phone needs to support Band 40 (2300 MHz) to connect to the local partner networks in these countries.
- TDD Technology: This band uses Time Division Duplexing (TDD), which means the uplink and downlink share the same frequency channel but operate at different times. This makes it efficient for high-capacity data transfers.
T-Mobile USA’s Primary Mid-Band Strategy
For context, T-Mobile’s flagship mid-band network—the one responsible for their “Ultra Capacity 5G” (5GUC) speeds—is primarily built on the 2.5 GHz spectrum (Band n41), which is near the 2300 MHz frequency but offers wider channel bandwidths for significantly faster performance.
Frequently Asked Questions
Why does the text message say “2300 Mauritius”?
When T-Mobile or an international partner routes an MMS (picture or video message) through a global network gateway, the system may tag the message with the short code 2300 and a generic server location like Mauritius. This confirms the message was processed by a global messaging hub rather than being sent locally.
Is T-Mobile actually using the 2300 MHz band in the US?
No, T-Mobile USA does not typically use the 2300 MHz spectrum (Band 30 or Band 40) for its core coverage. T-Mobile relies on Band 71 (600 MHz) for coverage, Band 2 and Band 66 (1900/1700 MHz) for capacity, and Band n41 (2.5 GHz) for Ultra Capacity 5G.
If I see a 2300 charge, should I dispute it immediately?
Yes. If you are certain you never signed up for the service, you should call T-Mobile to dispute the charge and demand a refund. T-Mobile is often required to refund unauthorized third-party charges. Always request that they place a permanent block on Direct Carrier Billing features on your account to prevent future surprise charges.

