Home     Blog

CNA Number

CNA stands for Customer Name and Address. The CNA number is a phone number for telephone company personnel to call and get the name and address for a phone number. If a telephone lineman finds a phone line he does not recognize, he can use the ANAC Number to find its phone number and then call the CNA operator to see who owns it and where they live.

Commercial CNA Number Services

Normal CNA numbers are available only to telephone company personnel. Private citizens may legally get CNA information from private companies. Companies offering this service include:

Cross-Reference Directories (900)288-3020
AT&T National Directory Assistance (900)555-1212
Telename (900)884-1212
Unidirectory (900)933-3330

Note that these are 900 numbers, and will cost you approximately one dollar per minute.

Free Web-Based CNA Number Searches

Several companies offer reverse lookup services over the web. A few of these web sites are:cna number CNA Number

I have never had much luck with these web based services. I have had more success searching for the telephone number in Google.

Social Engineering CNA Numbers

You can often social engineer CNA information out of telephone company employees or out of employees of other companies with CNA access.

Here is a sample script that works if your target has ever ordered pizza from Domino's or Pizza Hut:

Them: Hi, thanks for call, may I take your order please?

You: Yes, I'd like 4 large pepperoni pizzas.

Them: May I have your phone number please?

You:

Them: Is this 238 Ward Road?

You: Yes ma'am.

What is the telephone company CNA number for my area?

NPA CNA Number Geography

214 (214)744-9500 Southwestern Bell
214 (214)745-7505 Southwestern Bell
513 (513)565-2800 Cincinnati Bell Network Operations Center
NYNEX (518)471-8111 New York, Connecticut, Vermont, Rhode Island, New Hampshire, and Massachusetts

If you are in 312, 708, or parts of 815, Ameritech has a pay-for-play CNA service called "Ameritech Name Finder Plus" available to the general public. The number is (312)796-9600. The cost is $.35/call and you can look up two numbers per call.

The legal telephone company CNA for Ontario is 555-1313.

VN:F [1.9.17_1161]
Rating: 0.0/10 (0 votes cast)
Follow Will.Spencer on

Leave a Reply

Related Posts

  • How to Block Your Number

    Caller ID displays the phone numbers of in-coming calls. There are times when a person may want to prevent his/her phone number from appearing on the recipient’s Caller ID. To temporarily prevent your phone number from showing up on a caller ID, use the following directions: 1. Dial *67. 2. Immediately after dialing *67, dial [...]...


  • How to Block a Phone Number

    With the increase in global communications, the need for phone users to block a phone call has increased. The reasons for blocking a phone call vary. There are a number of easy ways to block incoming calls. What Types of Phone Calls Do People Block? It really depends on the person. The reasons for blocking [...]...


  • IntraLATA

    IntraLATA refers to any telephone call that is made between two separate local telephone companies that are close enough to not constitute a long-distance call. To fully understand IntraLATA and InterLATA systems, a user must understand that a LATA, or Local Access and Transport Area, is a local telephone company that is responsible for managing [...]...


  • NAM: Number Assignment Module

    The NAM (Number Assignment Module) is the EPROM (Erasable Programmable Read-Only Memory) in a mobile telephone which holds information such as the MIN (or MDN) and SIDH.  The data fields stored in a phone’s NAM vary between the various mobile telephone specifications, such as AMPS/NAMPS, GSM, PCS, CMDA.  In modern networks, NAMs can be reprogrammed [...]...


  • Reverse Telephone Directory

    A reverse telephone directory is a type of directory used in telephony to identify a person and his/her address by entering his/her phone number. A reverse telephone directory is the opposite of traditional telephone directories, such as Yellow Pages or caller ID, which allow a user to search for a person’s phone number by entering [...]...