Description

What Are N11 Codes?

N11 codes are used to provide three-digit dialing access to special services.

In the United States, the FCC administers N11 codes. The FCC recognizes 211, 311, 511, 711, 811 and 911 as nationally assigned, but has not disturbed other traditional uses.

The table below summarizes N11 assignments, reservations, and traditional usage and what N11 assignments are supported for outbound dialing through Telnyx. We do not currently provide directory listing services at this time.

N11 Code

Description

Supported

211

Community Information and Referral Services

No

311

Non-Emergency Police and Other Governmental Services

No

411

Local Directory Assistance

No

511

Traffic and Transportation Information (US); Provision of Weather and Traveller Information Services (Canada)

No

611

Repair Service

711

Telecommunications Relay Service (TRS)

Yes

811

Access to One Call Services to Protect Pipeline and Utilities from Excavation Damage (US); Non-Urgent Health Teletriage Services (Canada)

Yes

911

Emergency

Yes

For N11 outbound calls there are no caller ID (CLI) validations enforced, as we prioritize connecting these calls. However for 911, if an invalid CLI or a CLI without an emergency address is used, this is classified as an unregistered call at a cost of $100 per call. Please ensure you send valid caller ID's from numbers on your account that have emergency services enabled and with an address.

Can't find what you're looking for? Click the chat bubble at your lower right-hand corner and talk to the support team!

Did this answer your question?