Directory assistancewikipedia
In telecommunications, directory assistance or directory enquiries is a phone service used to find out a specific telephone number and/or address of a residence, business, or government entity.
directory assistancedirectory enquiries118 500information operatorTelephone Directory assistance555-1212192 directory enquiriesUK directory enquiries servicedirectory searchDQ

4-1-1

4-1-1411
In the North American Numbering Plan (covering Canada and the United States), directory assistance may be contacted by dialing 4-1-1 (one of the N11 codes).
4-1-1 is the telephone number for local directory assistance in the United States and Canada.

118 118 (UK)

118 118118 118 (UK)118
Four of these, 118 118 (The Number), 118 212 (Maureen), 118 247 (Yellow Pages) and 118 500 (British Telecom) are among the most expensive and yet have over 90% of the market, mostly due to heavy advertising.
118 118 is the UK telephone number for a US owned directory enquiries provider.

N11 code

N11N-1-1
In the North American Numbering Plan (covering Canada and the United States), directory assistance may be contacted by dialing 4-1-1 (one of the N11 codes).

Telephone number

telephone numberphone numbertelephone numbers
In telecommunications, directory assistance or directory enquiries is a phone service used to find out a specific telephone number and/or address of a residence, business, or government entity.
The "555" prefix was reserved for telephone company use and was only consistently used for directory assistance (information), being "555-1212" for the local area.

555 (telephone number)

555 (telephone number)555555 telephone number
555-1212 is one of the standard numbers for this purpose throughout the United States and Canada.

North American Numbering Plan

Area codeArea codes<span style="white-space:nowrap;">Area code(s)
In the North American Numbering Plan (covering Canada and the United States), directory assistance may be contacted by dialing 4-1-1 (one of the N11 codes).
For example, 555-1212 is the standard number for directory assistance.

Information Please

The title was the contemporary phrase used to request from telephone operators what was then called "information" but is now called "directory assistance".

Computer Consoles Inc.

CCIPower 6/32CCI Power 6/32 &ldquo;Tahoe&rdquo;
CCI provided worldwide telephone companies with Directory Assistance (DA) equipment and other systems to automate various operator and telephony services, and later sold a line of 68k-based Unix computers and the Power 6/32 Unix supermini.

Metro One Telecommunications

Metro One Telecommunications was a provider of directory assistance headquartered in Beaverton, Oregon with 35 call centers.

1-800-FREE-411

1-800-FREE-411
1-800-FREE-411 is an American service offering advertising-supported directory assistance, operated by Marchex.

800-The-Info

800-The-Info
800-The-Info (or 1-800-843-4636) was a toll-free directory assistance (DA) and information service provided in the United States by Verizon.

GOOG-411

GOOG-411 (or Google Voice Local Search) was a telephone service launched by Google in 2007, that provided a speech-recognition-based business directory search, and placed a call to the resulting number in the United States or Canada.

Telegate

Telegate is a communications company based in Martinsried, Germany, providing directory assistance services to callers in Germany, Spain, and Italy.

118 118 (Sweden)

118118Sweden118 118
118 118 is a directory assistance services provider in Sweden both in operator based services as well as in interactive SMS based services.

Minitel

minitelTeletel/Minitelthe Minitel
By distributing terminals that could access a nationwide electronic directory of telephone and address information, it hoped to increase use of the country's 23 million phone lines, and reduce the costs of printing printed phone books and employing directory assistance personnel.

Eniro

Eniro ABEniro Holding asTelia InfoMedia
Eniro AB is a Nordic company offering search services and directory assistance 118118 in several countries.

Premium-rate telephone number

premium-rate telephone numberpremium rate900 number
Other services include directory enquiries, weather forecasts, competitions and voting (especially relating to television shows).

Telephone numbers in Brazil

+55Area codeBrazil
Local directory assistance can be obtained by dialing 102, but the service is charged as a regular local call in most instances except from payphones.

BT Wholesale and Ventures

WBCBT WholesaleIP Stream
It provides the voice services to UK customers via 999, 118 500 and Next Generation Text Service, which helps those who can’t hear or speak on the phone.

Fonejacker

fonejacker
Each episode begins with "fonejack" and the definition, to seize control of a telephone conversation by farce esp. to divert it from reason and logic, usually followed by Novak calling Directory Enquiries as Mr Doovdé on an American pay phone.

Nordia Inc.

This happened after Bell Canada decided to stop processing calls for directory assistance.