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  2. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    The original 800-code operated for over thirty years before its 7.8 million possible numbers were depleted, but new toll-free area codes are being depleted at an increasing rate both by more widespread use of the numbers by voice-over-IP, pocket pagers, residential, and small business use, and response tracking for individual advertisements ...

  3. Toll-free number portability - Wikipedia

    en.wikipedia.org/wiki/Toll-free_number_portability

    The system was redesigned in 1981 to use a database, the SMS/800 service management system, which could direct any toll-free number to any destination based on various conditions; number prefixes remained tied to specific carriers until a RespOrg (responsible organization) structure was introduced in 1993 (US) and 1994 (Canada) to allow ...

  4. List of Lumen Technologies operating companies - Wikipedia

    en.wikipedia.org/wiki/List_of_Lumen_Technologies...

    CenturyLink grew as Century Telephone and later CenturyTel through acquiring many small and mid-size telephone companies. These include: CenturyTel of Chester, Inc. (Iowa, Minnesota) CenturyTel of Colorado, Inc. – formerly Universal Telephone; CenturyTel of Eagle, Inc. – formerly owned by Pacific Telecom

  5. Contact AOL customer support - AOL Help

    help.aol.com/articles/account-management...

    Phone support is available for account management and password reset help, Mon-Fri: 8am-12am ET; Sat: 8am-10pm ET. For additional hours of operation for different services visit our support options page for contact info.

  6. Qwest Corporation - Wikipedia

    en.wikipedia.org/wiki/Qwest_Corporation

    Qwest Corporation, doing business as CenturyLink QC, is a Regional Bell Operating Company owned by Lumen Technologies. It was originally named Mountain States Telephone and Telegraph Company , later becoming known as Mountain Bell , then US West Communications, Inc. from 1991 to 2000.

  7. Somos, Inc. - Wikipedia

    en.wikipedia.org/wiki/Somos,_Inc.

    The American Telephone & Telegraph Company (AT&T) first introduced 800 toll-free service in 1967. [2] When AT&T was the only Interexchange carrier, local exchange carriers automatically routed all toll-free calls directly to an AT&T point of presence without performing a translation from the toll-free number to the terminating telephone number. [3]

  8. RespOrg - Wikipedia

    en.wikipedia.org/wiki/RespOrg

    [4] [5] In practice, some RespOrgs do abuse the system by stockpiling millions of toll-free numbers for advertising purposes, because the enforcement of the regulations has been weak and sporadic. This situation has led to periodic creation of overlay plan toll-free area codes to prevent exhaustion of the SMS/800 available number pool.

  9. Automatic number announcement circuit - Wikipedia

    en.wikipedia.org/wiki/Automatic_number...

    An automatic number announcement circuit (ANAC) is a component of a central office of a telephone company that provides a service to installation and service technicians to determine the telephone number of a telephone line. The facility has a telephone number that may be called to listen to an automatic announcement that includes the caller's ...