# +1-505-998-3793 on iPhone: T-Mobile Support From Overseas URL: https://byshahid.com/blog/t-mobile-support-from-overseas-iphone/ App: Secret Codes: IMEI & Carrier (https://apps.apple.com/us/app/secret-codes-imei-carrier/id6807154322) Author: Muhammad Shahid Updated: 2026-11-04 > +1-505-998-3793: T-Mobile international roaming care, dialable from abroad. T-Mobile publishes +1-505-998-3793 as the number to call when service is not working while you are travelling internationally. 611 is a US-only short code and will not route from a foreign network. From your own T-Mobile handset abroad, dial it with the leading plus. - **Code:** +1-505-998-3793 - **What it does:** T-Mobile international roaming care, dialable from abroad. - **Published for:** T-Mobile - **Type:** Carrier specific T-Mobile international roaming care, dialable from abroad. This page explains what `+1-505-998-3793` does, how to use it on an iPhone and which carriers it applies to. I build **Secret Codes: IMEI & Carrier**, a free iPhone app with 317 checked codes and guides, including this one. If you would rather tap than memorise, [get Secret Codes on the App Store](https://apps.apple.com/us/app/secret-codes-imei-carrier/id6807154322). ## What does +1-505-998-3793 do? T-Mobile publishes +1-505-998-3793 as the number to call when service is not working while you are travelling internationally. 611 is a US-only short code and will not route from a foreign network. From your own T-Mobile handset abroad, dial it with the leading plus. From a hotel phone or landline you will need to prefix the country's international dialling code, and long distance charges may apply. Try [#766#](/blog/turn-on-t-mobile-international-data-roaming-hash-766-iphone/) (#RON#) first to confirm international data roaming is enabled on the account, since that resolves a large share of the calls this line receives. ## How do I use +1-505-998-3793? - Open the Phone app and tap Keypad. - Type +1-505-998-3793 exactly as written. - Press the green Call button and wait for the result. ## Which carriers does this apply to? | Published for | T-Mobile | | Type | Carrier specific | | Good to know | T-Mobile lines calling from outside the US. Charges may apply if you call from a landline rather than your own handset. | _Screenshot: The Secret Codes detail screen shows the steps, the carriers and an Open in Phone button._ ## Related more carrier and n11 codes - [#436#: T-Mobile Inbound Caller ID Name](/blog/t-mobile-inbound-caller-id-name-hash-436-iphone/) - [888-944-9400: UScellular Customer Service](/blog/uscellular-customer-service-iphone/) - [#634#: Turn Off T-Mobile Scam ID](/blog/turn-off-t-mobile-scam-id-hash-634-iphone/) - [+[number]: Dial Internationally With Plus](/blog/dial-internationally-with-plus-iphone/) - [#664#: Turn On T-Mobile Scam ID](/blog/turn-on-t-mobile-scam-id-hash-664-iphone/) - [011[number]: Dial Internationally With 011](/blog/dial-internationally-with-011-iphone/) See all [more carrier and n11 codes](/blog/iphone-codes/more-carrier-codes/) or [every category of iPhone codes](/blog/iphone-codes/). ## How Secret Codes helps Secret Codes keeps this and every other entry a search away. Pick your carrier once and each entry says whether it is published for your line. You can save favourites, add a private note, and record whether a code worked on your line. **Secret Codes: IMEI & Carrier** is free on the App Store: https://apps.apple.com/us/app/secret-codes-imei-carrier/id6807154322 ## FAQ ### What does +1-505-998-3793 do on iPhone? T-Mobile international roaming care, dialable from abroad. T-Mobile publishes +1-505-998-3793 as the number to call when service is not working while you are travelling internationally. 611 is a US-only short code and will not route from a foreign network. ### What else should I know about +1-505-998-3793? From your own T-Mobile handset abroad, dial it with the leading plus. From a hotel phone or landline you will need to prefix the country's international dialling code, and long distance charges may apply. ### What are the steps for +1-505-998-3793? 1. Open the Phone app and tap Keypad. 2. Type +1-505-998-3793 exactly as written. 3. Press the green Call button and wait for the result. ### Where do I use +1-505-998-3793? On the keypad of the Phone app. ### Is +1-505-998-3793 a hidden or secret code? No. It is a published service, not a hidden menu. iPhones do not have Android-style engineering menus. ### Which carriers does +1-505-998-3793 work on? It is published for T-Mobile. T-Mobile lines calling from outside the US. Charges may apply if you call from a landline rather than your own handset. ### Does +1-505-998-3793 work on Android phones too? It is handled by the carrier or service rather than the iPhone, so it is not tied to one phone brand. Check with your carrier. ### Will +1-505-998-3793 work outside the US? It is published for US carriers and services, so do not count on it abroad. Ask your carrier before you travel. ### What if +1-505-998-3793 does not work on my iPhone? Check that it applies to your carrier first, because carriers decide which services they offer and can change them. If it should apply to your line, contact your carrier. ### What is related to +1-505-998-3793? #436#: T-Mobile Inbound Caller ID Name. Turn on the caller name lookup for incoming calls. ### What else is in this category? 888-944-9400: UScellular Customer Service. The number UScellular publishes for calls from any phone. ### Can I find +1-505-998-3793 in an app? Yes. Secret Codes, a free iPhone app, includes it with its steps and carrier details. ## Sources - [Verizon Support](https://www.verizon.com/support/)