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)
PopularFax Number
855-214-7519
Alt: 855-215-1627
Hours
24/7
For S-Corporation election submissions
IRS Form 2848/8821 (POA/TIA)
PopularFax Number
855-214-7522
Hours
24/7
Power of Attorney and Tax Information Authorization
Medicare Part D Prior Authorization
PopularFax Number
800-693-5288
Hours
24/7
Prior authorization requests for Part D medications
Social Security Administration
PopularFax Number
833-515-0516
Hours
Mon-Fri 9am-4pm EST
Disability and benefit applications
United Healthcare Prior Auth
PopularFax Number
888-950-1059
Hours
24/7
Prior authorization requests
Complete Fax Directory
33 fax numbers found
IRS Form 2553 (S-Corp Election)
For S-Corporation election submissions
IRS Form 2848/8821 (POA/TIA)
Power of Attorney and Tax Information Authorization
IRS Form 3911 (Missing Refund)
Taxpayer Statement Regarding Refund
IRS Centralized Authorization File (CAF)
For practitioner authorizations
IRS Installment Agreements
Form 9465 submissions
IRS Identity Theft Unit
Form 14039 Identity Theft Affidavit
IRS Offer in Compromise
Form 656 submissions
IRS Penalty Abatement
First-time penalty abatement requests
Medicare Part D Prior Authorization
Prior authorization requests for Part D medications
CMS (Centers for Medicare & Medicaid)
General correspondence
VA Healthcare Benefits
Veterans healthcare enrollment
HIPAA Complaint Office
File HIPAA violations
CDC Immunization Records
Vaccination record requests
Social Security Administration
Disability and benefit applications
US Passport Agency
Expedited passport applications
USCIS (Immigration)
Immigration document submissions
Department of Labor - FMLA
Family Medical Leave Act forms
Small Business Administration
SBA loan applications
United Healthcare Prior Auth
Prior authorization requests
Blue Cross Blue Shield Federal
Federal employee program
Aetna Prior Authorization
Medical prior authorizations
Cigna Medical Review
Medical necessity reviews
Humana Pharmacy Prior Auth
Pharmacy prior authorizations
US Tax Court
Tax court petitions and documents
US Bankruptcy Court (SDNY)
Southern District of New York
US District Court (Central CA)
Central District of California
USPTO Trademark Office
Trademark applications
Copyright Office
Copyright registrations
Dun & Bradstreet
D-U-N-S Number applications
Better Business Bureau
Complaint submissions
SEC Edgar Filings
Securities filings
FCC Complaints
Communications complaints
OSHA Whistleblower
Safety violation reports
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