What Are N11 Numbers?

N11 numbers are three digit telephone numbers in which the first digit is anything other than zero or one, and the last two digits are both one, resulting in only eight possibilities. These numbers, administered by the FCC in the US, provide access to special services, as listed below.

2-1-1	Non-crisis, confidential, community information and referral services
3-1-1	Non-emergency police and government services
4-1-1	Local directory assistance
5-1-1	Access to transportation and traffic information
6-1-1	Repair service
7-1-1	Deaf and hard of hearing relay service
8-1-1	Access to services to protect pipeline and utilities from excavation damage
9-1-1	Emergency police, fire, ambulance

For more information on the numbering plan used for telephone networks in the US and its territories, Canada, and the Caribbean, visit the North American Numbering Plan Administration web site at www.nanpa.com.