Guides · Fax numbers

Railroad Retirement Board fax number (find your field office)

Checked against rrb.gov on November 11, 2026

The Railroad Retirement Board has no single fax number: each field office lists its own. Open the RRB field office locator, pick your office, and use the fax number under Contact Info.

How to fax it

  1. Find your office in the RRB field office locator and copy its fax number.
  2. Add a note with your name, RRB claim number or Social Security number, and what the document is for.
  3. Send it from dimefax.com/send.
  4. Keep the delivered confirmation. Dimefax shows the date and time it went through.

Tips

Dimefax costs 10¢ a page and you’re only charged if the fax goes through. On the web, page credits come in packs of 50 for $4.99, 100 for $9.99 or 200 for $19.99; the Dimefax iPhone app also sells 10 for $0.99. Credits you don’t use stay in your account and last as long as you fax once a year.

Where these numbers come from

Dimefax isn’t part of, or endorsed by, the Railroad Retirement Board. We copied these numbers from rrb.gov on November 11, 2026. Agencies change their numbers: if your letter, notice or form gives a different one, use that.

Questions

What is the Railroad Retirement Board fax number?

Each field office has its own; find it in the RRB field office locator under Contact Info.