Phoneword

mnemoniclettersphone wordphonewordsspells
Phonewords are mnemonic phrases represented as alphanumeric equivalents of a telephone number.wikipedia
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Vanity number

Vanity Numbers
Phonewords are the most common vanity numbers, although a few all-numeric vanity phone numbers are used.
While many of these are phonewords (such as 1-800-Flowers, 313-DETROIT, 1-800-Taxicab or 1-800-Battery), occasionally all-numeric vanity phone numbers are used.

1-800-Flowers

1-800-Flowers.com1-800 Flowers1-800-Flowers.com, Inc.
Toll-free telephone numbers are often branded using phonewords; some firms use easily memorable vanity telephone numbers like 1-800 Contacts, 1-800-Flowers, 1-866-RING-RING, or 1-800-GOT-JUNK? as brands for flagship products or names for entire companies.
The concept of using the word "flowers" within a Phoneword was originated by William Alexander in the early 1980s.

Telephone keypad

keypad12-key telephone keypaddial pad
In many countries, the digits on the telephone keypad also have letters assigned.
For example, an interior decorator might license the telephone number 1-800-724-6837, but advertise it as the more memorable phoneword 1-800-PAINTER.

Telephone number

phone numbertelephone numbersphone numbers
Phonewords are mnemonic phrases represented as alphanumeric equivalents of a telephone number.
Phonewords

Toll-free number portability

number portabilityported to any carrier
A toll-free number, instead of indicating a geographic location, was merely a pointer to a database record; any number could geographically be reassigned anywhere and ported to any carrier.
Vanity numbers, such as phonewords or short 13- series shared-cost service numbers, are made available by auction.

Misdialed call

wrong numbermisdialmisdialled calls
The dialing of 1 or 0 instead of I or O in phonewords can lead to misdialed calls; one such typosquatting incident targeted 1-800-HOLIDAY (+1-800-465-4329, the toll-free direct reservations line for Holiday Inn) by subscribing 1-800-H0LIDAY (+1-800-405-4329, the same number with 'o' replaced by 'zero') to a rival vendor which stood to collect a profitable travel agent's commission.
By tying up millions of easily remembered numbers, these schemes force businesses to use overlay plan area codes or numbers without mnemonic phonewords.

Toll-free telephone number

toll-freetoll-free number800 number
Toll-free telephone numbers are often branded using phonewords; some firms use easily memorable vanity telephone numbers like 1-800 Contacts, 1-800-Flowers, 1-866-RING-RING, or 1-800-GOT-JUNK? as brands for flagship products or names for entire companies.
In toll-free telephony, a shared-use number is a vanity number (usually a valuable generic phone word), which is rented to multiple local companies in the same line of business in different cities.

Teledotcom

Teledotcom
Most owners of a toll-free number that spells something (see Phoneword), will also try to register the matching domain name and therefore create a teledotcom; a valuable asset should they wish to sell it.

Typosquatting

catchall" typosquattinggoggle.comMisspelled
The dialing of 1 or 0 instead of I or O in phonewords can lead to misdialed calls; one such typosquatting incident targeted 1-800-HOLIDAY (+1-800-465-4329, the toll-free direct reservations line for Holiday Inn) by subscribing 1-800-H0LIDAY (+1-800-405-4329, the same number with 'o' replaced by 'zero') to a rival vendor which stood to collect a profitable travel agent's commission.
Misdialed call#Toll-free numbers (for similar attacks on vanity toll-free telephone number phonewords)

E.161

ITU E.161ITU-T E.161letters assigned to most of the digits
E.161
Forming phonewords from telephone numbers

RespOrg

responsible organizationResponsible Organizations (Resp Orgs)
This changed after Roy P. Weber of Bell Labs patented a "Data base communication call processing method" which laid the initial blueprint for construction of the SMS/800 database in 1982 and the portable RespOrg structure in 1993.
An independent RespOrg may also hold an advantage in obtaining vanity phonewords by reserving recently disconnected numbers for its clients in the first few seconds after they become available.

Somos, Inc.

Number Administration and Service Center
This changed after Roy P. Weber of Bell Labs patented a "Data base communication call processing method" which laid the initial blueprint for construction of the SMS/800 database in 1982 and the portable RespOrg structure in 1993.
Vanity numbering and phonewords

Telephone exchange names

central office nametelephone exchangetelephone exchange name
Telephone exchange names
Phonewords

T9 (predictive text)

T9predictive textpredictive text input
T9 (predictive algorithm)
Phoneword

Mnemonic

mnemonicsmnemonic devicememory system
Phonewords are mnemonic phrases represented as alphanumeric equivalents of a telephone number.

Alphanumeric

Alphamericalphanumeric charactersalphanumerics
Phonewords are mnemonic phrases represented as alphanumeric equivalents of a telephone number.

Acronym

initialismacronymsinitials
By replacing the digits of a telephone number with the corresponding letters, it is sometimes possible to form a whole or partial word, an acronym, abbreviation, or some other alphanumeric combination.

1-800 Contacts

1-800 CONTACTS, INC. v. WhenU. com, Inc.
Toll-free telephone numbers are often branded using phonewords; some firms use easily memorable vanity telephone numbers like 1-800 Contacts, 1-800-Flowers, 1-866-RING-RING, or 1-800-GOT-JUNK? as brands for flagship products or names for entire companies.

1-800-GOT-JUNK?

1-800 Got Junk?1-800-GOT-JUNK
Toll-free telephone numbers are often branded using phonewords; some firms use easily memorable vanity telephone numbers like 1-800 Contacts, 1-800-Flowers, 1-866-RING-RING, or 1-800-GOT-JUNK? as brands for flagship products or names for entire companies.

Société de transport de Montréal

STMSTCUMMontreal Transit Corporation
Local numbers are also occasionally used, such as +1-514-AUTOBUS or STM-INFO to reach the Société de transport de Montréal, but are subject to the constraint that the first few digits are tied to a geographic location - potentially limiting the available choices based on which telephone exchanges serve a local area.

Telephone exchange

exchangescentral officeexchange
Local numbers are also occasionally used, such as +1-514-AUTOBUS or STM-INFO to reach the Société de transport de Montréal, but are subject to the constraint that the first few digits are tied to a geographic location - potentially limiting the available choices based on which telephone exchanges serve a local area.

Roy Morgan Research

Roy MorganMichele LevineMorgan
A study conducted by Roy Morgan Research in February 2006 indicated that 92% of Australians are aware of alphanumeric dialling.

BlackBerry

CrackberryBlackberriesBlackBerry OS
Devices with physical keyboards such as BlackBerry and some other smartphones do not have the apportioned letters on the keys used for dialing, so one is unable to do alphabetic dialing without some other cross-reference to the actual phone number.

Smartphone

smartphonessmart phonesmart phones
Devices with physical keyboards such as BlackBerry and some other smartphones do not have the apportioned letters on the keys used for dialing, so one is unable to do alphabetic dialing without some other cross-reference to the actual phone number.

IOS

iPhone OSApple iOSiPhone
However, devices which have virtual keyboards, including iOS and Android devices, will translate phoneword phone numbers in webpages and SMS messages to their proper digits within a hyperlink leading to that device's phone app, and their keypads show the appropriate local mapping of letters within their virtual dialpad.