Telcordia® Routing Administration
The industry recognized source for routing and rating data
Catalog of Products
A "complete" printable TRA Catalog of Products (more extensive product overviews, licensing details, and an Order Request Form) in pdf format can be accessed by clicking on the catalog image appearing to the right. ===>
A synopsis of each TRA product is provided below.
Telcordia® LERG™ Routing Guide
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The LERG Routing Guide is the most comprehensive routing data output available from TRA. Data supports the current local exchange network within the North American Numbering Plan (NANP) and identifies reported planned changes in the network. The LERG Routing Guide is primarily designed to be used for routing of calls by service providers (wireless, wireline, inter and intra exchange, etc.). It also supports functions such as networking planning and engineering, numbering administration, and is used by companies, including many outside of the telecommunications industry, to support a wide range of business operations and planning needs. The LERG has been in existence since 1984, and provides for a common basis for service providers within the NANP to directly report their numbering and routing information. The LERG is supported by integrated and quality-oriented industry processes and is similarly supported by TRA. Data in the LERG includes, but is not limited to:
- Operating Company Numbers, Company Names, Routing Contacts
- Country Code Assignments
- NPA Information (i.e., Area Codes)
- LATA Codes By Region
- Destination Codes (i.e. NPA NXX and Thousands-Blocks) (details on over 500,000 assignments)
- Oddball NXXs (e.g. 911, 976)
- Switching Entity Record detail (e.g. Equipment Type, V&H Coordinates)
- Rate Center details (e.g. V&H Coordinates) and Localities (including county and postal codes)
- Switch Homing Arrangements (tandem and other switch-to-switch interconnections)
- Operator Access Tandem Codes (ATCs)
- Location Routing Numbers (LRNs)
The LERG Routing Guide provided on CD-ROM and via the TRA Product Distribution System (PDS) includes a Microsoft® Access database version of the data in addition to fix formatted data files. The Access database version of the LERG provides a graphical user interface front end to access and view data records using a TRA designed "form view" as well as Access "table views". The database requires users to have a local licensed copy of Access. Users with a basic knowledge of Microsoft Access can easily search for specific data elements, create customized queries, cross-relate data files, export data to other software (e.g. Microsoft Excel), generate files that can serve as input files downstream operations support systems, etc.
Note: Equipment type - Switching System Codes (coded values regarding switch equipment types in the LERG) are assigned by COMMON LANGUAGE®. A spreadsheet of valid codes is available at www.commonlanguage.com. Click on “Store” in the upper left corner of the web page then, at the store site, choose Code Center and then CL-DATA-SSC for the spreadsheet.
Produced: first workday monthly
Distribution Frequency: monthly or quarterly (March, June, September, December)
Distribution Format(s): web download, CD-ROM, electronic data transmission (monthly subscribers only and assessed on a case by case basis)
Bulk data transfer service employs CONNECT:Direct, a third-party software package (Stirling Software), to manage the transfer. If you have or can install CONNECT:Direct, call our Customer Care Center for more information. Data transfer via his method requires a data line between Telcordia and your receiving site. This may be a dedicated physical line (not dial up), or a Virtual Private Network (VPN) tunnel can be established and the Internet used as the data line.
LERG One Day Changes: Monthly subscribers may opt to be provided access to a password-protected web-based LERG One Day Changes Process at no additional charge. This process provides fixed-formatted data files reflecting daily changes to the primary data files.
Click here to request more information on the LERG. Data file specifications and the LERG General Section (includes glossary) are available for download from the "documents" tab at this web site.
Sample LERG Available (1.6MB) (based on latest specifications)
Basic instructions for downloading and viewing LERG sample data follow:
- create a folder for which the path is C:\LERG_SAMPmmyy and download to that folder
- once the file lergdownmmyy.exe is downloaded:
- double click on it to expand the LERG sample
- read the generated LERGSAMP.DOC (or TXT) for more info
(12 MB available space required on hard drive for all files)
LERG Tool:
The following tool, as an offering separate from the LERG itself, provides you the ability to view, manipulate, and manage LERG data via a web interface.
This is an easy-to-use web-based GUI application for monthly LERG subscribers that Telcordia licenses on an enterprise basis for the benefit of everyone in your company. LERG OnLine data is updated daily instead of monthly. The LERG OnLine data can be downloaded to your local environment, which then, as with the LERG Routing Guide data, can be integrated into other applications.
Click here to request more information on LERG OnLine. The following is an example of the interface.
Telcordia® TPM™ Data Source
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The TPM Data Source supports various systems used in rating and billing telephone calls and can be used as a source for certain data related to NPA NXXs. It contains data for the United States, American Samoa, the Commonwealth of Northern Mariana Islands, Guam, Puerto Rico, the US Virgin Islands, Canada, Bermuda, 16 island countries in the Caribbean, and Mexico.
Data elements include:
| Numbering Plan Area (Area Code) | IDDD Capability Indicator |
| NXX Code (exchange, prefix - with block) | Rate Center |
| Operating Company Number | Place Name |
| Vertical (V) Coordinate | State, Province, Country |
| Horizontal (H) Coordinate | Portability Indicator |
| Revenue Accounting Office (RAO) | Time Zone |
| Thousands-Block Pooling Indicator | Company Type |
| NXX Type (wireline, paging, cellular, etc.) | Other Line Rate Step |
| Daylight Savings Time Indicator | Special Calling Cards |
The TPM Data Source provided on CD-ROM and via the TRA Product Distribution System (PDS) includes a Microsoft® Access database version of the data in addition to fix formatted data files. The Access database version of the TPM provides a graphical user interface front end to access and view data records using a TRA designed "form view" as well as Access "table views".The database requires users to have a local licensed copy of Access. Users with a basic knowledge of Microsoft Access can easily search for specific data elements, create customized queries, cross-relate data files, export data to other software (e.g. Microsoft Excel), generate files that can serve as input files downstream operations support systems, etc.
Produced: mid-month monthly (product issuances are dated the 15th of the month following creation)
Distribution Frequency: monthly or quarterly (issue date: January, July, April, October)
Distribution Format(s): CD-ROM, web download, bulk data transmission (monthly subscribers only)
Bulk data transfer service employs CONNECT:Direct, a third-party software package (Stirling Software), to manage the transfer. If you have or can install CONNECT:Direct, call our Customer Care Center for more information. Data transfer via his method requires a data line between Telcordia and your receiving site. This may be a dedicated physical line (not dial up), or a Virtual Private Network (VPN) tunnel can be established and the Internet used as the data line.
Click here to request more information on the TPM. Data file specifications and the TPM Data Source Glossary are available for download from the "documents" tab at this web site.
Sample TPM Available (550KB) (based on latest specifications)
Basic instructions for downloading and viewing TPM sample data follow:
- create a folder for which the path is C:\ACCESS\TPM_SAMP0109 and download to that folder
- once the file tpmdownmmyy.exe is downloaded:
- double click on it to expand the TPM
- read the generated TPMSAMP.TXT for more info
Note: Sample data is as of 01/09 although latest TPM
specifications are as of 10/06.
(3.0 MB available space required on hard drive for all files)
Telcordia® Local Calling Area Data Source
The Local Calling Area Data Source (LCADS) is a database containing local calling area information for areas within the United States and Canada. Telcordia proactively collects and maintains the local calling tariff database information by utilizing the governing sources.
LCADS contains business and residential local calling area plans for various service providers. It is an aid for companies involved with designing optional calling plans, routing of telecom traffic, least cost routing and validating and identifying local / toll calls.
Data elements include:
Distance City Name CO Type (LEC or Wireless) NPA NXX Rate Center State OCN LATA Rate Center V&H Dialing Patterns Calling Plans
Partial Query Example: NPA NXXs Local to me (Residential) - (NPA NXXs that 732699 can call as a Local Call)
Dist |
NPA NXX |
COTYPE |
ST |
OCN |
CITY |
11.63615 |
908262 |
E |
NJ |
7232 |
Belle Mead |
6.395311 |
732302 |
E |
NJ |
5120 |
Bound Brook |
6.708204 |
732273 |
E |
NJ |
7232 |
Dunellen |
5.700877 |
732297 |
E |
NJ |
5120 |
Franklin Park |
5.300943 |
908930 |
W |
NJ |
6391 |
Metuchen |
Dist = Distance of NPA NXX from 732699 Central
Office (miles)
NPA NXX = Area Code / prefix
COTYPE = LEC or Wireless
ST = State
OCN = Telecom Carrier Operating Company Number
CITY = Name of the Rate Center
Produced: 10th calendar day monthly
Distribution Frequency: monthly
Distribution Format(s): CD-ROM, web download
Click here to request more information on LCADS.
Telcordia® Telemarketing Data Source (TDS)
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If you have a need to know which exchanges (NXXs) are most likely cellular, landline, or paging, the Telemarketing Data Source is an economical way to keep up with this information.
If your company has call center operations, needs to verify phone numbers, performs processing of customer contact information, or needs to suppress wireless or page numbers from a database application, or other similar needs, you'll find the Telemarketing Data Source a valuable tool for your business.
The Telemarketing Data Source provides a front-end application that permits you to extract the data provided relative to NPA NXX (prefix, exchange) and Thousands-Block assignments at various levels of selection criteria. Time Zone and Daylight Savings Indicators are also provided by NPA NXX.
Produced:
first workday monthlyDistribution Frequency: monthly
Distribution Format(s): CD-ROM, web download
Click here to request more information on TDS.
Basic instructions for downloading and viewing TDS sample data follow:
- once the file tds_eval_setup_3_0.exe is downloaded:
- double click on it to install the TDS sample
- a desktop icon will then be installed
(10.0 MB available space required on hard drive for all files)
Telcordia® NPA-NXX Active Code List (NNACL)
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The NPA NXX Active Code List lists all NPA NXX assignments that are active (in service) as of these dates. Data provided includes identification of the assigned service provider (OCN), type of service that is provided (e.g. wireless), associated Rate Center and State/Province/Country, and a Portability Indicator. Also included is a file that can be used to translate the Operating Company Number (OCN) to a company name. A “search” program to facilitate data selection and extraction is also provided with each issuance of the product. A general information section explains the data in greater detail.
Approximately 150,000 NPA NXX records are included in the NNACL. NNACL data is provided in fixed-width ASCII files. This data can be locally imported into Excel, loaded into locally developed databases, and/or read with applications that can read text files (e.g. Notepad, Microsoft® Word). Reading and processing of the data is a local consideration, based on user needs, processing environment, etc.
If there is need to reference or track changes that occur between quarterly issuances of the NNACL, the Telcordia® NPA NXX Activity Guide (NNAG), with records formatted the same as the NNACL, provides (only) activity (i.e. adds/deletes, changes to data), and is issued monthly. An integration application to directly update the NNACL data with the NNAG data is not provided due to the wide range of user environments and uses of the data; such must be developed by the user if needed. Due to the vast diversity among user environments, integration of the data into your local environment is your responsibility; however, TRA can assist your staff through explanation of the data, etc.
Produced:
first workday quarterly (January, April, July, October)Distribution Frequency: quarterly (January, April, July, October)
Distribution Format(s): email, web download
Scroll down to see information regarding the more detailed, NPA-NXX Active Code List - Thousands-Block!
Click here to request more information on the NNACL.
Basic instructions for downloading and viewing NNACL sample data follow:
- once the file nnaclsmp.exe is downloaded:
- double click on it to expand the sample
- read the generated README.TXT for more info
(3.0 MB available space required on hard drive for all files)
Telcordia® NPA-NXX Active Code List - Thousands Block (NNACL-TB)
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The NPA NXX Active Code List – Thousands-Block (NNACL-TB) is comprised of data files that help you maintain your internal operations, processes, and databases at peak efficiency with a complete listing of all active NPA NXX codes and assigned Thousands-Blocks within the North American Numbering Plan area. Keep track of the ever changing world of these assignments through the NNACL-TB.
In many areas in the United States, for many NXXs (prefixes) within an NPA (Area Code), carriers are provided blocks of a thousand numbers, in lieu of a full 10,000 lines (NXX), to serve as a basis for assigning telephone numbers to new subscribers.
The NNACL-TB contains all the information in the NNACL; however it adds information regarding Thousands-Block assignments. All distribution methods that apply to the NNACL also apply to the NNACL-TB, except that for the physical distribution option, due to the added volume of data, it is also distributed via CD-ROM. More than 500,000 NPA NXX (including block) records are included in the NNACL-TB.If there is need to reference or track changes that occur between quarterly issuances of the NNACL-TB, the NPA NXX Activity Guide – Thousands-Blocks (NNAG-TB), with records formatted the same as the NNACL-TB, provides (only) activity (i.e. adds/deletes, changes to data), and is issued monthly. An integration application to directly update the NNACL-TB data with the NNAG-TB data is not provided due to the wide range of user environments and uses of the data; such must be developed by the user if needed. Due to the vast diversity among user environments, integration of the data into your local environment is your responsibility; however, TRA can assist your staff through explanation of the data, etc.
Produced:
first workday quarterly (January, April, July, October)Distribution Frequency: quarterly (January, April, July, October)
Distribution Format(s): CD-ROM, email, web download
Click here to request more information on the NNACL-TB.
Sample NNACL-TB Available (.3MB)
Basic instructions for downloading and viewing NNACL-TB sample data follow:
- once the file ncltbsmp.exe is downloaded:
- double click on it to expand the sample
- read the generated README.TXT for more info
(1.0 MB available space required on hard drive for all files)
Telcordia® NPA-NXX Activity Guide (NNAG)
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The NPA NXX Activity Guide (NNAG) helps you to prepare for all future NPA NXX adds, changes and disconnects, as well as last minute changes to active records. It can be considered and used as a stand alone product, or as a complement to the NPA NXX Active Code List (NNACL).
The NNAG consists of NPA NXX records associated with future activity and last minute changes. Data includes the identification of the assigned service provider (OCN), type of service that is provided (e.g. wireless), associated Rate Center and State/Province/Country, and a Portability Indicator. Also included is a file that can be used to translate the Operating Company Number (OCN) to a company name. A “search” program to facilitate data selection and extraction is also provided with each issuance of the product. A general information section explains the data in greater detail.
NNAG data is provided in fixed-width ASCII files. This data can be locally imported into Excel, loaded into locally developed databases, and/or read with applications that can read text files (e.g. Notepad, Microsoft® Word). Reading and processing of the data is a local consideration, based on user needs, processing environment, etc.
Produced:
first workday monthlyDistribution Frequency: monthly
Distribution Format(s): email, web download
Scroll down to see information regarding the more detailed, NPA-NXX Activity Guide - Thousands Block!
Click here to request more information on the NNAG.
Sample NNAG Available (data format) (.3MB)
Basic instructions for downloading and viewing NNAG sample data follow:
- once the file nnagsamp.exe is downloaded:
- double click on it to expand the sample
- read the generated README.TXT for more info
(1.5 MB available space required on hard drive for all files)
Telcordia® NPA-NXX Activity Guide - Thousands Block (NNAG-TB)
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The NPA NXX Activity Guide – Thousands-Block (NNAG-TB) helps you to prepare for all future NPA NXX and Thousands-Block adds, changes and disconnects, as well as last minute changes to active records. It can be considered and used as a stand alone product, or as a complement to the NPA NXX Active Code List – Thousands-Block (NNACL-TB) data product
In many areas in the United States, for many NXXs (prefixes) within an NPA (Area Code), carriers are provided blocks of a thousand numbers, in lieu of a full 10,000 lines (NXX), to serve as a basis for assigning telephone numbers to new subscribers.
The NNAG-TB contains all the information in the NNAG; however it adds information regarding Thousands-Block assignments. Distribution methods that apply to the NNAG also apply to the NNAG-TB except that for the physical distribution option, due to the added volume of data, it is also distributed via CD-ROM. More than
500,000 NPA NXX (including block) records are included in the NNACL-TB.Data includes the identification of the assigned service provider (OCN), type of service that is provided (e.g. wireless), associated Rate Center and State/Province/Country, and a Portability Indicator. Also included is a file that can be used to translate the Operating Company Number (OCN) to a company name. A “search” program to facilitate data selection and extraction is also provided with each issuance of the product. A general information section explains the data in greater detail.
NNAG-TB data is provided in fixed-width ASCII files. This data can be locally imported into Excel, loaded into locally developed databases, and/or read with applications that can read text files (e.g. Notepad, Microsoft® Word). Reading and processing of the data is a local consideration, based on user needs, processing environment, etc.
Produced:
first workday monthlyDistribution Frequency: monthly
Distribution Format(s): email, web download
Click here to request more information on the NNAG-TB.
Sample NNAG-TB Available (data format) (.4MB)
Basic instructions for downloading and viewing NNAG-TB sample data follow:
- once the file ngtbsamp.exe is downloaded:
- double click on it to expand the sample
- read the generated README.TXT for more info
(2.7 MB available space required on hard drive for all files)
Telcordia® LIDB Access Routing Guide (LARG)
The LIDB (Line Information DataBase) Access Routing Guide (LARG) is a single source for Line Information DataBase (LIDB) access routing data. The data can be used to administer and maintain Signal Transfer Point global title translation (GTT) tables for routing to data sources supporting Alternate Billing Services (certain calling cards, bill-to-third, collect, etc.). It identifies the responsible Signaling Network Control Center (SNCC), the appropriate Line Information DataBase provider, the inter-network route effective date, and the capability code or pseudo point code data. The LARG’s format and content is similar to the Calling Name Access Routing Guide (CNARG) that is used to manage access for database queries relative to Calling Name information.
The LARG is a useful tool for:
- Alternate Billing Service providers
- Database maintenance staff
- Increasing accuracy of queries
- Improving GTT performance
A text file that defines data fields, provides contact information, etc., is provided with each issue.
Produced:
first workday monthlyDistribution Frequency: monthly
Distribution Format(s): email, web download
Click here to request more information on the LARG.
Telcordia® Calling Name Access Routing Guide (CNARG)
The Calling Name Access Routing Guide (CNARG) is a single source of information for accessing information relative to databases containing subscriber Calling Name information. The CNARG data can be used to administer and maintain Signal Transfer Point Global Title Translations (GTT) tables used to route to points that contain this data. The CNARG’s format and content is similar to the LIDB Access Routing Guide (LARG) that is used to manage access for database queries relative to alternate billing services information.
The Calling Name Access Routing Guide is a useful tool for:
- Calling Name service providers
- Database maintenance staff
- Increasing accuracy of queries
- Improving GTT performance
A text file that defines data fields, provides contact information, etc., is provided with each issue.
Produced:
first workday monthlyDistribution Frequency: monthly
Distribution Format(s): email, web download
Click here to request more information on the CNARG.
Telcordia® Telephone Area Code Directory (TACD)
The Telephone Area Code Directory identifies the Area Code(s) (NPA(s)) associated with a given locality within the North American Numbering Plan. This product is useful as a reference tool to research area codes by state and locality. It most often is used by those knowing a locality and needing to know the associated Area Code. Provided as data files, the user can locally develop various associations of localities, states/provinces/countries, and Area Codes, as may be needed for studies, marketing plans, etc. Data changes to these relationships may result for various factors such as Area Code splits and overlays, renamed localities, new localities, Area Code boundary changes, etc.
Produced:
mid-month monthlyDistribution Frequency: monthly
Distribution Format(s): email, web download
Telcordia® Emergency Notifications (ENs)
Emergency Notifications report last minute changes that are not included in the current month’s products. Emergency Notifications are published at least once a week.
Emergency Notifications are useful for:
- Engineers responsible for call routing and switch translations
- Network planners/architects to prepare for coming changes
- Call rating and billing operations staff
- Recipients of the LERG and/or TPM that need to be aware of last minute NXX announcements (new code openings)
Emergency Notifications report new NXXs that are effective in less than 45 days from the date they are entered into the underlying TRA database by the service provider or its agent. Industry lead time for an NXX opening is a minimum of 45 days from the data entry date; however, exceptions, for various reasons, may sometimes be necessary. Emergency Notifications may also provide information of general interest such as reported blocked calls, short notice homing changes, and rate center changes. High level information regarding Area Code Splits (dates and test numbers) are provided and summarized once a month.
Produced:
Each Tuesday and as may be needed otherwiseDistribution Frequency: Each Tuesday and as may be needed otherwise
Distribution Format(s): email
Telcordia® Area Code Split Exchange Data (ACSED)
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The Area Code Split Exchange Data (ACSED) provides an up-to-date listing of all the exchanges (prefixes, NXXs) involved with an Area Code split. Although lists may be available from other sources, they generally do not reflect changes that occur mid-stream. The ACSED does reflect such changes.
Although Area Code splits are less pervasive than they were just a few years ago, the quarterly ACSED can keep you aware of future splits. An Area Code Split Exchange Data – Historical (ACSED-H) is also available and provides an exchange list for each split since 1989, covering 150 splits. Included with the ACSED, and most splits in the ACSED-H, is a listing of the primary localities associated with each split.
Data is provided as fixed formatted ASCII files that can be read with a text editor, loaded into spreadsheet programs, processed and also loaded into various databases. Due to the vast diversity among user environments, integration of the data into your local environment is your responsibility; however, TRA can assist your staff through explanation of the data, etc. Data is provided as one file for each split. However, an executable program is included with the ACSED that provides options to re-organize the data into a few other layouts, as well as combine data from different files, so as to make it easier to integrate with your local needs.
Produced:
first workday quarterly (March, June, September, December)Distribution Frequency: quarterly (March, June, September, December) (note: ACSED-H is available as a one-time order only)
Distribution Format(s): email, web download
Click here to request more information on the ACSED.
Basic instructions for downloading and viewing ACSED sample data follow:
- once the file acsedsmp.exe is downloaded:
- double click on it to expand the sample
- read the generated README.TXT for more info
(0.15 MB available space required on hard drive for all files)
V & H Calculation (VHCALC)
Vertical and Horizontal Calculation Software (VHCALC) can help save staff time by translating latitude and longitude and V&H coordinates for such needs as new switch installations, Rate Centers, and points of interconnection. It also can be used to compute distances between sets of V&H coordinates.
Vertical and Horizontal (V&H) coordinates identify points on the earth’s surface and are derived from latitude and longitude. Developed by the telecommunications industry, they simplify the calculations needed to determine the straight-line airline distance between two sets of geographical points. Distance-sensitive rating processes use Rate Center V&H coordinates to determine mileage relative to rate bands. Switch V&H coordinates are used primarily when developing distance sensitive access charges.
The Vertical and Horizontal Calculation Software is a PC-based program that permits the conversion, in both directions, of V&H coordinates and latitude/longitude. The program has two modes: interactive and batch. It is DOS-based but is executable in Windows. The interactive mode is a user-prompted interface that assesses one set of coordinates at a time. The batch mode provides the capability to convert sets of V&H coordinates and latitude/longitude data in a data file, in either direction, in bulk.
Vertical and Horizontal Calculation-Interactive:
This mode provides the capability to assess the following, one set of coordinates at a time:
Converts Vertical and Horizontal coordinates to latitude/longitude
- Converts latitude/longitude to Vertical and Horizontal coordinates
- Computes the distance between a set of Vertical and Horizontal coordinates
- Provides Vertical and Horizontal coordinates and computes the latitude/longitude for an NPA NXX*
- Computes the distance between a pairs of NPA NXXs*
*Used only with the following data products: TPM™ Data Source, OTCNPG, Geographic Exchange List. These products provide Rate Center Vertical and Horizontal coordinates; the Geographic Exchange List includes Switch Vertical and Horizontal coordinates.
Vertical and Horizontal Calculation-Batch:
This includes the Vertical and Horizontal Calculation-Interactive software, and adds additional programs that convert all records in a user-created data file containing V&H coordinates to latitude/longitude (and in the reverse direction). Data in the Vertical and Horizontal Calculation - Batch software requires a locally prepared ASCII file in a prescribed layout for input to the program. Users should have some experience with PCs and data management to address input and output requirements of the program.
Produced:
ongoing version; updated release if/when necessaryDistribution Frequency: one-time
Distribution Format(s): diskette
Telcordia® Geographic Exchange List (GEL)
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The Telcordia® Geographic Exchange List (GEL) is a source for all geographic information in the LERG™ Routing Guide and TPM™ Data Source, associated with an NPA NXX.
The GEL is issued semiannually in January and July of each year. Each issue contains a complete listing of currently active NPA NXXs and associated geographical data. Each NPA NXX record is associated with a compilation of its geographic data from the LERG Routing Guide and TPM Data Source as noted below.
The GEL is available on 3.5”, 1.44MB DOS-formatted diskettes, with data in fixed-record ASCII formatted data files. Each data file represents a Numbering Plan Area (i.e., Area Code) series Numbering Plan Area 2XX through 9XX, where X=0-9).
Produced:
first weekend semi-annual (January, July)Distribution Frequency: semi-annual
Distribution Format(s): diskette
- once the file gelsamp.exe is downloaded:
- double click on it to expand the sample
- read the generated README.TXT for more info
(0.35 MB available space required on hard drive)
Industry-Specific Proprietary Data Products
Products specific to, and restricted to, the industry are the Operating Telephone Company Numbering Plan Guide (very similar to the generally available TPM Data Source), and customized Point Code Data that require the concurrence of the data providing party. Please contact TRA for further information.