NPA-NXX (telephone area code)

GPTKB entity

Statements (23)
Predicate Object
gptkbp:instanceOf telephone numbering format
gptkbp:composedOf gptkb:NPA
NXX
gptkbp:format NPA-NXX-XXXX
gptkbp:governedBy North American Numbering Plan Administration
https://www.w3.org/2000/01/rdf-schema#label NPA-NXX (telephone area code)
gptkbp:introduced 1947
gptkbp:NPA 3 digits
gptkbp:NPAexamples 212
gptkbp:NPAstandsFor Numbering Plan Area
gptkbp:NXX 3 digits
gptkbp:NXXexamples 555
gptkbp:NXXstandsFor Central Office Code
gptkbp:purpose identifies telephone exchanges
gptkbp:region gptkb:Canada
gptkb:Caribbean
gptkb:United_States
gptkbp:relatedTo area code
telephone number
gptkbp:usedFor routing telephone calls
gptkbp:usedIn gptkb:North_American_Numbering_Plan
gptkbp:bfsParent gptkb:ZIP_Code_system
gptkbp:bfsLayer 7