Long to the short, YES they are legal as long as you follow the proper steps when creating it.  If the number created belongs to someone else already, then that could be committing a crime (i.e. identity theft). This is why it's very important to follow the proper steps to creating a cpn, ensuring that it was not already assigned to another person. 

  Remember, this number is only used to rent a home or apartment and use on various credit application. Never it give to law enforcement, IRS, or any governmental agencies.    For LAW References see the following:

https://www.nbcnews.com/technolog/courts-using-anothers-ssn-not-crime-6C10406382

§ 802.23 Use and disclosure of social security numbers.

(a) In general. An individual shall not be denied any right, benefit, or privilege provided by law because of such individual's refusal to disclose his or her social security number.

(b) Exceptions. The provisions of paragraph (a) of this section do not apply with respect to:

(1) Any disclosure which is required by Federal statute, or

(2) The disclosure of a social security number to any Federal, State, or local agency maintaining a system of records in existence and operating before January 1, 1975, if such disclosure was required under statute or regulation adopted prior to such date to verify the identity of an individual.

(c) Requests for disclosure of social security number. If the Agency requests an individual to disclose his or her social security account number, we shall inform that individual whether:

(1) Disclosure is mandatory or voluntary.

(2) By what statutory or other authority such number is solicited, and

(3) What uses will be made of it.

This is also codified as:

§ 1.32 Collection, use, disclosure, and protection of Social Security numbers.

(a) Treasury must only collect full Social Security numbers (SSNs) when relevant and necessary to accomplish a legally authorized purpose related to a Treasury mission. In the absence of another compelling justification for the use of the full SSN (approved by the relevant component Head and the Departmental Senior Agency Official for Privacy), Treasury must only collect and maintain full SSNs:

(1) As a unique identifier for identity verification purposes related to cyber security, law enforcement, intelligence, and/or security background investigations;

(2) When required by external entities to perform a function for or on behalf of Treasury;

(3) When collection is expressly required by statute or regulation;

(4) For statistical and other research purposes;

(5) To ensure the delivery of government benefits, privileges, and services; and

(6) When there are no reasonable, alternative means for meeting business requirements.

(b) Treasury must not display the Social Security number on the outside of any package sent by mail.

(c) Treasury must not display the Social Security number on any document sent by mail unless there are no reasonable, alternative means for meeting business requirements and masking or truncating/partially redacting the SSN are not feasible.

(d) Whenever feasible, Treasury must mask, or truncate/partially redact Social Security numbers visible to authorized Treasury/component information technology users so they only see the portion (if any) of the Social Security number required to perform their official Treasury duties.

(e) An individual must not be denied any right, benefit, or privilege provided by law by a component because of such individual's refusal to disclose their Social Security number.

(f) The provisions of paragraph (e) of this section do not apply with respect to:

(1) Any disclosure which is required by Federal statute; or

(2) The disclosure of a Social Security number to any Federal, State, or local agency maintaining a system of records in existence and operating before January 1, 1975, if such disclosure was required under statute or regulation adopted prior to such date to verify the identity of an individual.

(g) When Treasury requests that an individual discloses their Social Security number, it must inform the individual:

(1) Whether that disclosure is mandatory or voluntary;

(2) By what statutory or other authority such number is solicited; and

(3) What uses are made of the number.

(h) Treasury must provide the information in this section in the notice discussed in § 1.28(b)(2)(iv). (See section 7 of the Privacy Act of 1974 set forth at 5 U.S.C. 552a, note.)

*If you need a fresh and safe CP Number shout out to us. 

-Go to TWO HIGH END CREDIT CARD SITES.DOES NOT MATTER WHAT THEY ARE AS LONG AS THEY ARE FOR EXCELLENT CREDIT !!BOTH WILL BE DENIED !!!  -NEXT, go to www.DRIVETIME.com and get approved !!  -NEXT, go to OPT-IN PRESCREEN -  https://www.optoutprescreen.com/    *OPT-IN to all credit card offers  -LAST go to CreditReport.com and get pull your report.. THAT IS IT !!  FOLLOW ALL INSTRUCTIONS AND THE PROFILE  NUMBER WILL BE TRI-MERGED CORRECTLY !

1-2 days After

Congratulations on enduring all the unsolicited phone calls and emails. At least you know people are looking for your CPN. Next, you need to get  2-3 inquiries on your profile. This is to get recognized by financial institutions to produce and extend lines of credit. With the same info, you used to fill in the above links. Apply to these companies. The order isn't important as the time frame between inquiries. This should be done in the course of 3 days. Apply to an Indigo Credit card, American Express business card, and a personal loan. You will never see "Congratulations your approved." If you do, you have a problem I have never seen before. Good For You! An inquiry validates your profile as it looks as if you are looking for credit. This is like stapling your file with Experian, Transunion, and Equifax. Apply to each one, one day after another. Never do it on the same day. You want to look for credit, not look like you NEED credit. It'll sometimes take a day or 2 for at least one inquiry to attach to your profile.

LIST YOUR NEW PHONE NUMBER - 411 LISTINGS: (Be sure to use only your NEW PHONE NUMBER)
LIST YOURSELF: www.listyourself.net/ListYourself/listing.jsp
ZABA SEARCH: http://www.zabasearch.com/public/create_record.php
Note: Sometimes Zaba will not allow you to complete this process due to technical issues. If this should happen, skip to the next step.

PUBLIC RECORDS – THERE ARE TWO PARTS TO CREATING A PUBLIC RECORDS FILE – PART 1 WE DO ON OUR SIDE – PART 2 YOU DO BY COMPLETING THE FOLLOWING:

Fill out {AT LEAST 7}  reward/loyalty cards from the list below. The more the better✓  Then wait a (FULL 10 BUSINESS DAYS - NOT CALENDAR DAYS) before going to the next step....
OPT IN: www.optoutprescreen.com/ (Choose "Opt In" a MUST DO!)
TV GUIDE WEBSITE: http://www.tvguide.com/
SPIRIT REWARDS WEBSITE: https://www.spirit.com/freespiritlogin.aspx
DELTA REWARDS WEBSITE: https://www.delta.com/profile/enrolllanding.action
UNITED MILEAGE REWARDS WEBSITE:https://www.united.com/ual/en/us/account/enroll/default
JC PENNY REWARDS WEBSITE:https://www.jcprewards.com/
FUEL REWARDS WEBSITE: https://www.fuelrewards.com/fuelrewards/signup.html
MY POINT REWARDS WEBSITE: https://www.mypoints.com/emp/u/index.vm
SAFEWAY REWARDS WEBSITE: https://www.safeway.com/ShopStores/OSSO-Login.page?goto=http%3A%2F%PLENTI REWARDS WEBSITE: https://www.plenti.com/login
WALGREENS BALANCE REWARDS WEBSITE: https://www.walgreens.com/balancerewards/balance-rewards.jsp
MARRIOTT REWARDS WEBSITE: https://www.marriott.com/signIn.mi
SEARS REWARDS WEBSITE:  http://www.sears.com/en_us/dap/free-shop-your-way-membership.html
AUTO ZONE REWARDS WEBSITE: https://www.autozonerewards.com/viewLogin.htm
ACE HARDWEAR REWARDS WEBSITE: https://www.acehardware.com/acerewards/index.jsp?step=aceRewardsHub
BIGLOTS REWARDS WEBSITE: https://www.biglots.com/account/createAccount.jsp
FAMOUS FOOTWEAR REWARDS WEBSITE: https://www.famousfootwear.com/account/login#!/account-lookup
OFFICE DEPOT REWARDS WEBSITE: https://www.officedepot.com/account/registrationDisplay.do?

DICK'S SPORTING GOODS REWARDS WEBSITE: https://myscorecardaccount.com/

AFTER COMPLETING AT LEAST 7 OF THE ABOVE - WAIT 10 BUSINESS DAYS BEFORE GOING TO THE NEXT STEP:

After 10 days you create a Credit Karma account with your CPN info. Also Cash app, and Chime.

🎉👏 CONGRATULATIONS 👏🎉    NOW ITS TIME TO BUILD THE CREDIT SCORE. WE CAN HELP YOU GET SOME TRADELINES THAT POST ON YOUR NEW PROFILE SO YOU WILL BE APPROVED FOR CREDIT!!!