telephone number
Digits for calling
A telephone number is a sequence of digits assigned to a telephone line or mobile device, used to connect calls to that specific destination.
The format varies by country, typically including an area or country code followed by a local number.
What's your telephone number?
The term extends to any numeric identifier used for phone-based communication, including fax lines and text messaging services.
Single-place numerals
- area codeRegional telephone identifier
- country codeAlphanumeric national identifier
- dialing codeRegional phone number prefix
- extensionAdded part or duration
prefix · suffix · hyphen · parentheses · plus sign
Without connection charges
- 1-800Free-call phone prefix
- freephoneNo-cost calling service
- hotlineDirect emergency phone connection
- helplinePhone service for assistance
customer service · switchboard · PBX · extension · direct line · main line · reception · call center
Displays incoming number
- reverse lookupFinding source from result
- white pagesResidential telephone directory
- registryOfficial record of entries
- databaseOrganized digital information collection
validation · verification · spoofing · tracing · subscriber · registered · listed · unlisted
Graduated circular indicator
phonebook · address book · speed dial · favorites · redial · missed call · callback · voicemail
Stationary wired telephone
fax · VoIP · smartphone · fixed-line · wireless · satellite · pager · rotary
Not in any registry
- confidentialMeant to stay secret
- blockedPassage prevented or impeded
- privateRestricted to certain parties
- ex-directoryNot in phone directories
burner · disposable · temporary · anonymous · spoofed · withheld · restricted · opt-out
digits
Single-place numerals
- area codeRegional telephone identifier
- country codeAlphanumeric national identifier
- dialing codeRegional phone number prefix
extension · prefix · suffix · hyphen · parentheses · plus sign
toll-free
Without connection charges
helpline · customer service · switchboard · PBX · extension · direct line · main line · reception · call center · directory assistance
caller ID
Displays incoming number
- reverse lookupFinding source from result
- white pagesResidential telephone directory
- registryOfficial record of entries
database · validation · verification · spoofing · tracing · subscriber · registered · listed · unlisted · ex-directory
dial
Graduated circular indicator
directory · phonebook · address book · speed dial · favorites · redial · missed call · callback · voicemail · answering machine
landline
Stationary wired telephone
work · fax · VoIP · smartphone · fixed-line · wireless · satellite · pager · rotary · touch-tone
unlisted
Not in any registry
- confidentialMeant to stay secret
- blockedPassage prevented or impeded
- privateRestricted to certain parties
ex-directory · burner · disposable · temporary · anonymous · spoofed · withheld · restricted · opt-out · telemarketing
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