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FREQUENTLY ASKED QUESTIONS


What is the NPAC?

The Number Portability Administration Center (NPAC) supports the implementation of Local Number Portability and is the system used to facilitate number porting in the United States. Comprised of seven regional systems across the U.S., the NPAC manages the number portability processes of all telecom Service Providers in the United States, including wireline, wireless, and Voice over Internet Protocol (VoIP).

Who administers the NPAC?

iconectiv has been established as the next Local Number Portability Administrator (LNPA) in all U.S. regions.

What is LNP?

LNP stands for Local Number Portability. You may also hear it referred to as number portability or number porting.  Mobile number portability (MNP) or wireless number portability (WNP) refer to a type of LNP related to wireless or mobile numbers.

LNP was created as part of the Telecommunications Act of 1996 to give consumers the choice and convenience of keeping their wireline or wireless telephone number when switching from one service provider to another. Prior to LNP, consumers were required to get a new telephone number every time they switched service providers. Note that for wireline numbers, there are some geographical limitations to the consumer’s ability to porting their number.

For more technical information regarding how LNP works, click here.

What is the Local Number Portability Administrator (LNPA) and what are its responsibilities?

iconectiv is the LNPA for the United States.  As the LNPA, iconectiv manages seven regional databases that make up the U.S. NPAC.

The NPAC provides critical data that allows for:

  • Data administration for ported telephone numbers, service provider networks and audit administration
  • Mass changes, such as location routing number (LRN) transfers
  • Billing and cost appointments

Why would I need to use this service?

This service provides information when a telephone number is ported from a wireless number to a wireline number or vice versus. Since the Telephone Consumer Protection Act (TCPA). TCPA prohibits the use of autodialers or prerecorded voice messages to any telephone number in which the called party is charged, businesses that use autodialers to contact consumers can use this service to help round out their TCPA compliance efforts for telephone marketing.

What if I can’t find my login information?

If you can’t find your login information, call the help desk at: 844-411-WDNC (9362).

Does my account automatically renew each year?

No. Each year, you will need to renew the service and pay the applicable annual subscription fee.

Who is eligible to access the service?

The service provides information when a telephone number is ported from a wireless number to a wireline number or vice versus. Since the Telephone Consumer Protection Act TCPA prohibits the use of autodialers or prerecorded voice messages to any telephone number in which the called party is charged, businesses that use autodialers to contact consumers can use this service to help them round out their TCPA compliance efforts for telephone marketing.


Examples of companies that may benefit from this service include: 

  • Call Centers
  • Contact Centers
  • Market Research Firms
  • Marketing Agencies
  • Telemarketers
  • Debt Collectors


Is registration required?

Yes, registration is required. To get started, select Register and fill out the form.

Is there a fee for the service?

Yes, there are annual subscription fees.

What is the estimated average timeline for registration for users of the Wireless Do Not Call (WDNC) service if all forms are filled out correctly?

Once a user signs a service agreement with iconectiv, they will receive an invoice and service will begin once the registration is processed and payment is received.

If I am registered as a Direct customer but am becoming a Reseller customer, does my registration status change?

Yes, your company must register as a Reseller customer.  As you acquire Second Tier customers, each of those customers will need to register with iconectiv and indicate your company as their Reseller. You will then receive an invoice notification for that Second Tier customer.

How often are the files updated?

There are four files generated daily:

  • Wireline to wireless ports – no ranges
  • Wireline to wireless ports – with ranges
  • Wireless to wireline ports – no ranges
  • Wireless to wireline ports – with ranges

How are the files formatted?

Files utilize the ASCII file format.

How often can I access the files?

You can access the files as often as you would like – downloads are unlimited.  Files are updated once a day.

How often will my company be billed for this service?

All users will be billed annually in advance.

How will I receive my bill?

You will receive a notice via email that your invoice is available.  You can then login to an online payment portal to view and pay your invoice(s).

How do I pay my bill?

You can login to the Payment Portal to pay for your service.

Go to Login page

How can I reach the help desk?

You can reach the help desk by calling: 844-411-WDNC (9362) or by emailing wdnc@iconectiv.numberportability.com.

Can I resell the service?

The WDNC Service limits Resellers to one level of resale.  A Reseller Customer may resell to a Second Tier Customer, but the Second Tier Customer may not then resell the service (or any data from the WDNC service).

Am I reselling the Service if all I do is make calls on behalf of my customers?

No. As a Direct Customer, if you make calls on behalf of yourself and/or on behalf of your customers, you would not be reselling the Service as long as you do not sell, assign, lease, or otherwise disclose the data that comprises the service.

If I make phone calls on behalf of a client to generate sales leads (or something similar), can I disclose the results of the calls to my client, including the telephone numbers?

A Direct Customer may disclose to its clients the results of calls it makes on behalf of those clients (e.g., leads generated, survey results, applications for products/services, etc.), including the associated telephone numbers. However, the Direct Customer cannot simply provide confirmation to its client that a telephone number was ported to a wireless service, as that would constitute a "disclosure" to an entity that has not executed an agreement with iconectiv as a customer of a Reseller Customer.  In this instance, a client would be required to register with iconectiv and execute its own Service Agreement.

My company wants to provision multiple database systems. Do I need more than one subscription to the Service?

Yes. A separate subscription (and the corresponding fee) is required for each database you provision.

A “Database” means a single aggregation of data records or files containing the Intermodal Ports that make up the Service provided under this Agreement.


If a Customer (a) aggregates data from the Service into a single Database, and (b) allows multiple entities to access data from the Service in such a Database, then such Customer is a Reseller Customer, and those receiving such data from such Reseller Customer are Second Tier Customers as defined in Section 5.2 of the WDNC Service Agreement.

Does my subscription cover affiliates (i.e., subsidiaries, parent company, etc.)?

No. Rights to the service are limited to each legal entity that purchases a subscription.  A “Customer” does not include any affiliates of such entity. Any affiliate of a Customer that desires access to the Service must qualify as a Customer, in accordance with Article 5 (Qualification) of the iconectiv Wireless Do Not Call Service Agreement and execute its own Agreement.