Secret Codes guide
511 on iPhone: Traffic and Travel Information
By Muhammad Shahid · · 3 min read
Quick answer
511: State-run road conditions, closures and transit information. 511 is the FCC-assigned number for traffic and transportation information. State departments of transportation run the service, so what you hear covers road conditions, incidents, construction, mountain pass closures and often public transit for the state you are calling from. Most systems are voice-menu driven and many accept spoken road names.
Secret CodesDial codes, SIM & network test · Free on the App StoreDownload free →| Code | 511 |
|---|---|
| What it does | State-run road conditions, closures and transit information. |
| Published for | Verizon, AT&T, T-Mobile and UScellular |
| Type | Support varies |
State-run road conditions, closures and transit information. This page explains what 511 does, how to use it on an iPhone and which carriers it applies to.
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What does 511 do?
511 is the FCC-assigned number for traffic and transportation information. State departments of transportation run the service, so what you hear covers road conditions, incidents, construction, mountain pass closures and often public transit for the state you are calling from.
Most systems are voice-menu driven and many accept spoken road names. Some states also publish a 511 website and app carrying the same feed.
Availability and content vary by state, and a handful of states have retired their phone line in favour of the website.
How do I use 511?
- Open the Phone app and tap Keypad.
- Type 511 exactly as written.
- Press the green Call button and wait for the result.
Which carriers does this apply to?
| Published for | Verizon, AT&T, T-Mobile and UScellular |
|---|---|
| Type | Support varies |
| Good to know | Nationally assigned but operated state by state. A few states no longer run a 511 phone line. |
Related more carrier and n11 codes
- 311: Non-Emergency City Services
- 0: Dialling 0 for the Operator
- 211: Community Services Line
- 411: Directory Assistance
- 988: 988 Suicide and Crisis Lifeline
- 811: Call Before You Dig
See all more carrier and n11 codes or every category of 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. This entry is part of Secret Codes Pro.
Frequently asked questions
What does 511 do on iPhone?
State-run road conditions, closures and transit information. 511 is the FCC-assigned number for traffic and transportation information.
What else should I know about 511?
State departments of transportation run the service, so what you hear covers road conditions, incidents, construction, mountain pass closures and often public transit for the state you are calling from. Most systems are voice-menu driven and many accept spoken road names. Some states also publish a 511 website and app carrying the same feed.
What are the steps for 511?
1. Open the Phone app and tap Keypad. 2. Type 511 exactly as written. 3. Press the green Call button and wait for the result.
Where do I use 511?
On the keypad of the Phone app.
Is 511 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 511 work on?
It is published for Verizon, AT&T, T-Mobile and UScellular. Nationally assigned but operated state by state. A few states no longer run a 511 phone line.
Does 511 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 511 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 511 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 511?
311: Non-Emergency City Services. Local government requests and non-emergency reports.
What else is in this category?
0: Dialling 0 for the Operator. The classic operator digit, and what it actually does on mobile.
Can I find 511 in an app?
Yes. Secret Codes, a free iPhone app, includes it with its steps and carrier details, as part of Secret Codes Pro.
Sources
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