There are several N11 numbers and 3 digit dialing numbers.
| Number | Use | Support Status | Suggested Workaround |
|---|---|---|---|
| 211 | Community Information and Referral Services, commonly provided by United Way | ❌ Not supported | In CA, dial 866-FIND-211 (866-346-3211) |
| 311 | City Services - Non-Emergency Police and Other Governmental Services | ❌ Not supported | In SF: dial 415-701-2311 |
| In SJC: dial 408-535-3500 | |||
| In NYC: dial 212-639-9675 | |||
| Elsewhere: visit your city’s website | |||
| 411 | Local Directory Assistance | ❌ Not supported | Use the internet to find the directory information |
| 511 | Traffic and Transportation Information | ❌ Not supported | SF Bay Area: dial 888-500-4636 |
| NYC: dial 888-465-1169 | |||
| Elsewhere: visit your area’s 511 website | |||
| 611 | Telco Repair Service | ❌ Not supported | |
| 711 | Telecommunications Relay Service (TRS) | ❌ Not supported | |
| 811 | Underground Utility Location and Marking Service | ❌ Not supported | Dial 800-642-2444 |
| 911 | Emergency Services | ❌ Not supported | Use another phone |
| 988 | Suicide and Crisis Lifeline, replacing 800-273-8255 |
❌ Not supported | Use another phone, else dial 800-273-8255 |