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READ INSTRUCTIONS CAREFULLY Approved by OMB

BEFORE PROCEEDING FEDERAL COMMUNICATIONS COMMISSION 3060-0918

Commission Registration System (CORES)

March 2022 FORM 161 – CORES Update and Change Form 

1. FCC Registration Number (FRN): ___________________________

2. Entity Type: ____ ____ 3. Business Entity Type (if applicable): ____ ____

4. Business Entity Name: ___________________________________________________________________________________

4a. Salutation: ________ First Name: ______________________________________________________ Middle Initial: _____ 

Last Name: ___________________________________________________________________________ Suffix: ___________ 

5. Doing Business or Trading As: ____________________________________________________________________________

6. Contact Representative Organization/Company: _______________________________________________________________

7. Contact Representative Position/Title: _______________________________________________________________________

8. Contact Representative First Name: __________________________________________________ Middle Initial: _________

Contact Representative Last Name: ___________________________________________________________________________ 

9. Address: ______________________________________________________________________________________________

10. Address 2: ____________________________________________________________________________________________

11. Address 3: ____________________________________________________________________________________________

12. Address 4: ____________________________________________________________________________________________

13. City: ________________________________________ 14. State: ___ ___ 15. Zip Code: ________________ - __________

16. Country: _____________________________________________________________________________________________

17. Contact Representative Phone Number: ______________________________ 18. FAX: ______________________________

19. Contact Representative E-Mail: ___________________________________________________________________________

20. Personal Security Question (select only one): 20a. Custom Personal Security Question (if applicable): _______________ 

___ Mother’s Maiden Name

___ City of Birth _________________________________________________________ 

___ Favorite Pet’s Name

___ Corporate Internal Employee ID _________________________________________________________ 

___ Custom Personal Security Question

21. Personal Security Question Answer: _______________________________________________________________________

22. Certification Statement: I, ___________________________, certify under penalty of perjury that the foregoing and supporting

information is true and correct to the best of my knowledge, information, and belief.

Signature: _________________________________________________________ Date: _______________________________ 

FCC USE ONLY 

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ADVICE REFERENCE GUIDE 

HOW TO USE FCC FORM 161-(CORES) UPDATE/CHANGE FORM 

The FCC Form 161, CORES Update/Change Form, is a form that must be completed to update or change any 

previously registered CORES information. The information on this form is collected to ensure you receive any 

refunds due, to service public inquiries, and to comply with the Debt Collection Improvement Act of 1996. 

The information held in CORES can be updated/changed through the FCC webpage: www.fcc.gov/frnreg. 

Instructions for Completing FCC Form 161 

NOTE: All required blocks must be completed or it may result in a delay in processing or the return of your 

application. All blocks are required unless otherwise stated. 

(1) FCC Registration Number (FRN) - Enter the entity's ten-digit FCC Registration Number (FRN) assigned by

the Commission Registration System (CORES). The FRN is a unique entity identifier for everyone doing business

with the Commission. The FRN can be obtained electronically through the FCC webpage (www.fcc.gov.) or by

requesting FCC Form 160 through the FCC forms webpage (www.fcc.gov/formpage.html).

(2) Enter the Entity Type from the codes below:

01 - Individual 02 - Private Sector 

03 - Federal 04 - State 

05 - Local 06 – Foreign 

(3) Enter Business Entity Type (only respond if you selected 02 - Private Sector in Number (1) above):

01 - Corporation 02 - University 03 - Partnership 04 - LLC 

05 - Attorney 06 - Joint Venture 07 - Trust 08 - Association 

09 - Consortium 10 - Amateur Club 11 - Non-Profit/Exempt Organization 

(4) Business Entity Name (only applicable to businesses): Enter the entity name or company used commercially.

(4)(a) Entity Name (only applicable to individuals): Enter the name of the individual registrant. Enter the first 

name and last name, as well as the salutation, middle initial, and suffix if necessary. 

(5) Doing Business As/Trading As (optional): Enter Doing Business As or Trading As name. (Only if individual

entity)

(6) Contact Representative Organization/Company (optional): Enter the name of the contact representative

organization or company.

(7) Contact Representative Position/Title (only applicable to businesses): Enter the contact representative title.

(8) Contact Representative Name: Enter the name of the contact representative. Enter the first name, middle initial

and last name. A contact representative is the individual who will be contacted with any business concerning this

FRN.

(9) Address: The street address to which correspondence should be sent.

(10) Address 2 (optional): This line may be used if further identification of the address is required.

(11) Address 3 (optional): This line may be used, if necessary, for an address outside the United States of America.

(12) Address 4 (optional): This line may be used, if necessary, for an address outside the United States of America.

(13) City: The name of the city associated with the street address given in (10).

07- Tribal Govt Agency
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(14) State (Domestic Addresses only): If the contact representative has a United States mailing address enter the

appropriate two-digit state abbreviation as prescribed by the U.S. Post Office. If the contact representative has a

mailing address outside the United States, leave this section blank.

(15) ZIP Code (Domestic Addresses only): Enter the appropriate five or nine-digit ZIP code prescribed by the U.S.

Post Office. If address is foreign, enter the appropriate ZIP (postal) code. (Domestic address only)

(16) Country (International Addresses only): If the contact representative has a mailing address outside the

United States, enter the appropriate country.

(17) Contact Representative Daytime Telephone Number (optional for individuals): Enter the contact

representative's ten-digit daytime telephone number, including area code. For foreign telephone numbers include the

appropriate country dialing access code, as if you were calling from the United States. This daytime number should

be the number where you can be reached during normal business hours.

(18) Contact Representative Fax Number (optional): Enter the contact representative's ten-digit fax number,

including area code. For foreign fax numbers include the appropriate country dialing access code, as if you were

calling from the United States.

(19) Contact Representative E-mail Address (REQUIRED): Enter the contact representative's e-mail address.

(20) Personal Security Question: Select your Personal Security Question. In the event that you forget your

CORES password, your Personal Security Question and answer will be used to verify your identity. If you are not

satisfied with any of the Personal Security Questions on the list, select Custom Personal Security Question and

provide us with your own question in 21a.

(20)(a) Custom Personal Security Question: If you selected Custom Personal Security Question in (21), provide 

your own Personal Security Question here. (Maximum 100 characters, including spaces) 

(21) Personal Security Question Answer: Provide the answer to the Personal Security Question you had

previously specified in (21). (Maximum 60 characters, including spaces)

(22) Certification Statement: Read the certification statement and provide your signature if you agree to the stated

claim.

Send completed forms to: 

FCC 

Attention: CORES Administrator 

Room: 3-136

44 L St, NE

NOTICE TO INDIVIDUALS REQUIRED BY THE PRIVACY ACT OF 1974 AND THE PAPERWORK 

REDUCTION ACT OF 1995 

The solicitation of the personal information requested in this form is authorized by the Communications Act, 

Sections 8 & 9, and the Debt Collection Improvement Act of 1996. P.L. 104-134. This form will be used 

primarily to capture information to maintain required accounts receivable, and collect fines and debts due the 

Commission. As part of the Debt Collection Improvement Act, agencies are authorized to refer specific 

Taxpayers Identification information which includes Employers Identification Numbers and Social Security 

Numbers to the Department of Treasury for further investigation and possible enforcement of a statute, rule, 

regulation or order. If we believe there may be a violation or potential violation of an FCC statute, regulation, 

rule or order, your application may be referred to the Federal, state, or local agency responsible for 

investigating, prosecuting, enforcing or implementing the statute, rule, regulation or order. In certain cases, the 

information in your application may be disclosed to the Department of Justice or a court or adjudicative body 

when (a) the FCC; or (b) any employee of the FCC; or (c) the United States Government, is a party to 

a proceeding before the body or has an interest in the proceeding. If information requested on the form is 

not provided, processing of the application/filing may be delayed or returned without action pursuant to 

Commission rules. 

Washington, DC 20554
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If you owe a past due debt to the Federal Government, the Taxpayer Identification Number (such as your 

Social Security Number) and other information you provide may also be disclosed to the Department of the 

Treasury, Financial Management Service, other federal agencies and/or your employer to offset your salary, 

IRS tax refund or other payments to collect that debt. The FCC may also provide this information to these 

agencies through the matching of computer records when authorized. 

We have estimated that each response to this collection of information will take, on average, 15 minutes. 

Our estimate includes the time to read the instructions, look through existing records, gather and maintain

required data, and actually review and complete the form. If you have any comments on this estimate, or on

how we can improve the collection of this data to reduce the burden it causes you, please write the Federal 

Communications Commission, AMD-PERM, Washington, DC 20554, Paperwork Reduction Project (3060- 

0918). We will also accept your comments via the Internet if you send them to pra@fcc.gov. Please DO 

NOT SEND COMPLETED APPLICATION FORMS TO THIS ADDRESS.

Remember -- You are not required to respond to a collection of information sponsored by the Federal 

government, and the government may not conduct or sponsor this collection, unless it displays a currently 

valid OMB control number or if we fail to provide you with this notice. This collection has been assigned an 

OMB control number of 3060-0918. 

This notice is required by the Privacy Act of 1974, Public Law 93-579, December 31, 1974, 5 U.S.C. Section 

552a(e) (3) and the Paperwork Reduction Act of 1995, Public Law 104-13, October 1, 1995, 44 U.S.C. 3507.