Wholesale: Products & Services

8XX Database Query Service - V9.0

History Log

Product Description

CenturyLink 8XX Database Query Service is an originating service that forwards your end user's dialed 8XX-NXX-XXXX calls to a toll carrier based on the dialed 8XX number. When an 8XX call is originated by your end user, your Service Switching Point (SSP) Signaling System 7 (SS7) equipped end office sends an 8XX query to the CenturyLink 8XX Service Control Point (SCP) through the CenturyLink Signaling Transfer Point (STP). The CenturyLink SCP performs the carrier identification function based on the dialed digits to determine the toll carrier trunk group to which the call should be routed in accordance with the SMS/800™ database information residing in the CenturyLink SCP. The SCP transmits results of the carrier identification function, including the Carrier Identification Code (CIC) and any vertical feature(s) associated with the 8XX number, back to your SSP through the CenturyLink STP.

Alternatively you may send the call unqueried to the CenturyLink access tandem. CenturyLink will do the query and you will be billed for the query.

Call routing information in the SMS/800 database reflects the desires of the owner of the 8XX number as entered in the SMS/800 database by its chosen Toll-Free Responsible Organization (Resp Org). The cost of the 8XX Database query will be billed to the CLEC whose switch launched the 8XX database query.

Customer Responsibilities

You must order access to the CenturyLink local STP (links and ports) prior to, or in conjunction with, 8XX Database Query Service.

Also, you must issue an Access Service Request (ASR) for 8XX Database Query Service Options Activation.


8XX Database Query Service is available where facilities exist throughout CenturyLink QC.

Terms and Conditions

Terms and Conditions section does not apply to 8XX Database Query Service.

Technical Publications

Technical Publications section does not apply to 8XX Database Query Service.


Rate Structure

Recurring charges are comprised of the following rate elements:

  • Per query charge to the 8XX Database

    Nonrecurring charges are comprised of the following rate elements:

  • Point code activation charge

    Additional rate structure information can be found in CenturyLink Operating Companies Tariff F.C.C. No. 11 and the respective state access tariff.

    Tariffs, Regulations and Policies

    Tariffs, regulations and policies are located in the state specific Tariffs/Catalogs/Price Lists.

    8XX Database Query Service pricing is located in the CenturyLink Operating Companies Tariff F.C.C. No. 11 Section 6.

    Optional Features

    Plain Old Telephone Service (POTS) Translation-Delivers the 10-digit NPA-NXX-XXXX to you. This feature is provided if you enter the POTS number on the end-users record housed in the national 800/SMS database.

    Call Handling and Destination-Allows variable routing options by specifying a single carrier, multiple carriers, single termination, or multiple terminations. Variable options include routing by:

    • Originating NPA-NXX-XXXX
    • Time of Day
    • Day of Week
    • Specific Date
    • Allocation by Percentages
    • Routing options are determined by routing information specified by the toll-free provider in the SMS/800 database.


    Features Benefits
    Enables end-users to place 8XX calls to over 22 million toll-free numbers Offer full range of services; generate network traffic; attract new end-users
    Includes choice of two vertical features - POTS Translation and Call Handling and Destination Offer customized 8XX toll-free service
    Is provisioned from CenturyLink Service Control Points Offer a highly reliable service of proven and dependable performers
    Ordering via the GET process is easy and fast The GET process provides a nearly retail level of individualized service and ordering.
    Connections from CenturyLink's system to the national SMS/800 database have very seldom experienced congestion Modify service quickly � usually within 15 minutes


    You are initiating local service in several new markets and wants to ensure that your products and services are competitive with those of other local service providers in those same new markets. Realizing that use of toll-free calling is a large and growing market, you add 8XX service to your product line so that your end-users can place calls to over 22 million toll-free numbers across the country.


    Implementation section does not apply to 8XX Database Query Service.

    Product Prerequisites

    If you are a new CLEC and are ready to enter the Interconnection business with CenturyLink, please view the Getting Started as a Facility-Based CLEC web page.


    General pre-ordering information is located in the Pre-Ordering Overview.

    Requirements for pre-ordering are described in Local Service Ordering Guidelines (LSOG) Pre-Order.

    8XX Database Query Service is offered via the Tariffs/Catalogs/Price Lists.

    You must have SS7 connectivity either purchased from CenturyLink or an alternate provider.

    8XX Database Query Service is provided via the SS7 connectivity.

    If you participate in CenturyLink's 8XX Database Query Service, the translations necessary to access the 8XX database are communicated via the Link Data Sheet Common Channel Signaling Access Capability/Signaling System 7 (CCSAC/SS7) Pre Order Informaton) form. For additional information refer to the CCSAC/SS7 web site.


    Contact your CenturyLink Sales Executive to order 8XX Database Query Service.


    Contact your CenturyLink Service Manager for information.

    Maintenance and Repair

    Contact your CenturyLink Service Manager for information.


    Local Exchange Carrier Invoice System (LEXCIS) billing is described in Billing Information - Local Exchange Carrier Invoice System (LEXCIS).


    Local CenturyLink 101 "Doing Business With CenturyLink"

    • This introductory web-based training course is designed to teach the Local CLEC and Local Reseller how to do business with CenturyLink. It will provide a general overview of products and services, CenturyLink billing and support systems, processes for submitting service requests, reports, and web resource access information. Click here for Course detail and registration information.

    View additional CenturyLink courses in the Course Catalog.


    CenturyLink contact information is located in Wholesale Customer Contacts.

    Frequently Asked Questions (FAQs)

    1. How long does it take to provision the 8XX Database Query Service?
    The standard interval is 10 calendar days. More or less time may be required under certain circumstances; your CenturyLink Service Manager can inform you about those situations.

    2. There are several ways of setting up access to the 8XX database. Which way is best?
    That depends on your needs and goals for offering 8XX Database Query Service. Your CenturyLink Service Manager will be happy to help you review the options and help you select the best one for your needs.

    Last Update: March 26, 2015

    SMS/800™ is a Trademark of Ameritech Corporation