North American Numbering Plan - related articles and key terms

Related articles: 555 (telephone number)   9-1-1   Area code 360   Emergency telephone number   Guam   Puerto Rico   Telephone numbering plan   United States

Key terms: all local calls   alphabetic dialing   american samoa   area code   area code splitting   caller   cellular phones   dialing   digits   direct dialing   directory assistance   dominican republic   emergency telephone number   fictional telephone numbers   geographical area   inbound   local calls   long distance   metropolitan area   middle digit   mnemonic   mobile telephony   nanp   nanpa   nashua   north american numbering plan   north american numbering plan administration   npa code   nuisance   numbering plan   numbering plan area   overlays   pagers   permissive dialing   phone numbers   portability   prefixes   public switched telephone network   puerto rico   second digit   splits and overlays   telephone   telephone companies   telephone number   telephone users   toll alerting   toll calls   trinidad and tobago   vertical service code   xxxx

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