US Fax Directory

Find Fax Numbers for US Organizations

Search our directory of verified fax numbers for government agencies, healthcare providers, insurance companies, and business services across the United States.

Most Requested Fax Numbers

Frequently used fax numbers for common services

IRS Form 2553 (S-Corp Election)

Popular

Fax Number

855-214-7519

Alt: 855-215-1627

Hours

24/7

For S-Corporation election submissions

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IRS Form 2848/8821 (POA/TIA)

Popular

Fax Number

855-214-7522

Hours

24/7

Power of Attorney and Tax Information Authorization

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Medicare Part D Prior Authorization

Popular

Fax Number

800-693-5288

Hours

24/7

Prior authorization requests for Part D medications

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Social Security Administration

Popular

Fax Number

833-515-0516

Hours

Mon-Fri 9am-4pm EST

Disability and benefit applications

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United Healthcare Prior Auth

Popular

Fax Number

888-950-1059

Hours

24/7

Prior authorization requests

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Complete Fax Directory

33 fax numbers found

IRS Form 2553 (S-Corp Election)

Fax:855-214-7519
Alt:855-215-1627
Hours:24/7

For S-Corporation election submissions

IRS & Tax
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IRS Form 2848/8821 (POA/TIA)

Fax:855-214-7522
Hours:24/7

Power of Attorney and Tax Information Authorization

IRS & Tax
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IRS Form 3911 (Missing Refund)

Fax:855-253-3052
Hours:24/7

Taxpayer Statement Regarding Refund

IRS & Tax
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IRS Centralized Authorization File (CAF)

Fax:901-395-1417
Alt:859-320-1980
Hours:Mon-Fri 7am-7pm EST

For practitioner authorizations

IRS & Tax
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IRS Installment Agreements

Fax:855-236-3551
Hours:24/7

Form 9465 submissions

IRS & Tax
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IRS Identity Theft Unit

Fax:855-807-5720
Hours:24/7

Form 14039 Identity Theft Affidavit

IRS & Tax
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IRS Offer in Compromise

Fax:901-395-1600
Hours:Mon-Fri 8am-5pm EST

Form 656 submissions

IRS & Tax
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IRS Penalty Abatement

Fax:855-253-3957
Hours:24/7

First-time penalty abatement requests

IRS & Tax
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Medicare Part D Prior Authorization

Fax:800-693-5288
Hours:24/7

Prior authorization requests for Part D medications

Healthcare
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CMS (Centers for Medicare & Medicaid)

Fax:410-786-5882
Hours:Mon-Fri 8am-5pm EST

General correspondence

Healthcare
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VA Healthcare Benefits

Fax:877-222-8387
Hours:Mon-Fri 8am-8pm EST

Veterans healthcare enrollment

Healthcare
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HIPAA Complaint Office

Fax:202-619-7585
Hours:Mon-Fri 9am-5pm EST

File HIPAA violations

Healthcare
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CDC Immunization Records

Fax:800-243-7889
Hours:Mon-Fri 8am-5pm EST

Vaccination record requests

Healthcare
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Social Security Administration

Fax:833-515-0516
Hours:Mon-Fri 9am-4pm EST

Disability and benefit applications

Government
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US Passport Agency

Fax:877-487-2778
Hours:Mon-Fri 8am-10pm EST

Expedited passport applications

Government
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USCIS (Immigration)

Fax:703-760-7821
Hours:Mon-Fri 8am-5pm EST

Immigration document submissions

Government
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Department of Labor - FMLA

Fax:202-693-5210
Hours:Mon-Fri 8am-5pm EST

Family Medical Leave Act forms

Government
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Small Business Administration

Fax:202-481-0344
Hours:Mon-Fri 9am-5pm EST

SBA loan applications

Government
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United Healthcare Prior Auth

Fax:888-950-1059
Hours:24/7

Prior authorization requests

Insurance
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Blue Cross Blue Shield Federal

Fax:800-535-9481
Hours:Mon-Fri 8am-6pm EST

Federal employee program

Insurance
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Aetna Prior Authorization

Fax:888-632-3862
Hours:24/7

Medical prior authorizations

Insurance
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Cigna Medical Review

Fax:877-358-6263
Hours:Mon-Fri 8am-8pm EST

Medical necessity reviews

Insurance
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Humana Pharmacy Prior Auth

Fax:877-486-2621
Hours:24/7

Pharmacy prior authorizations

Insurance
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US Tax Court

Fax:202-521-4549
Hours:Mon-Fri 8am-5pm EST

Tax court petitions and documents

Legal & Courts
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US Bankruptcy Court (SDNY)

Fax:212-668-2870
Hours:Mon-Fri 9am-5pm EST

Southern District of New York

Legal & Courts
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US District Court (Central CA)

Fax:213-894-2141
Hours:Mon-Fri 9am-4pm PST

Central District of California

Legal & Courts
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USPTO Trademark Office

Fax:571-273-9400
Hours:Mon-Fri 8:30am-5pm EST

Trademark applications

Legal & Courts
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Dun & Bradstreet

Fax:973-921-5901
Hours:Mon-Fri 8am-5pm EST

D-U-N-S Number applications

Business Services
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Better Business Bureau

Fax:703-247-9300
Hours:Mon-Fri 9am-5pm EST

Complaint submissions

Business Services
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SEC Edgar Filings

Fax:202-772-9337
Hours:Mon-Fri 9am-5:30pm EST

Securities filings

Business Services
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FCC Complaints

Fax:866-418-0232
Hours:Mon-Fri 8am-5:30pm EST

Communications complaints

Business Services
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OSHA Whistleblower

Fax:202-693-7862
Hours:Mon-Fri 8am-4:30pm EST

Safety violation reports

Business Services
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