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BASE Jumping: Articles: General: BASE Numbers

BASE Numbers updated

by BASEwiki

Once a BASE jumper has jumped from all four objects and completes the "BASE" acronym, he or she can apply for a BASE number. The first BASE number was awarded in 1981 to Texas jumper Phil Smith. Carl Boenish, the inventor of the BASE acronym, received BASE #4. Since then, BASE has grown exponentially and in early 2005 the number 1000 was awarded. is an unofficial website that tracks the numbers and their dates. It has a chart that gives an idea of the growth of the sport.

It is not mandatory to get your BASE number. There are many successful BASE jumpers without a number. However, BASE WIKI recommends applying when you qualify. It is the number that will link you back to the beginning of the sport and give you a place in BASE history.


To apply for your BASE number, contact the United States Base Association (USBA) through Rick or Joy Harrison.

Here are the instructions from Rick Harrison:

Hello BASE Jumpers:

Joy and I issue the original World BASE Numbers and Night BASE Numbers which were started by Carl and Jean Boenish in January 1981 when the first BASE number was earned. Carl always believed that BASE jumping would catch on, and he was right. Your BASE number is your link back to the beginning of our sport.

To apply for a BASE Number, we need the following information:

  1. Name, Address, or a self addressed envelope. Phone number is optional.
  2. Name and/or location and altitude of each of the four objects.
  3. Date of each object, especially the date and TIME of your qualifying jump. The time of the qualifying jump is important in case someone else in the world qualified on the same day.
  4. Any descriptions of the jumps, or jump stories, will be appreciated as we enjoy them. Of course, they will remain confidential.
  5. On the subject of donations, we ask for $10 to issue a number to help cover our costs for postage and supplies, totally voluntary. If you want the plastic card with your number and qualifying date and Carl Boenish’s signature embossed, there is a $5 fee.

In respect for privacy of individuals, and integrity of the BASE Numbers, we will not be issuing them by email. Our original BASE Constitution requires confidentiality. We will take the information about your jumps by email in order to lock in your date until we receive your letter.

We wait thirty days after the date of your qualifying jump to issue your number to make sure the rest of the worlds mail has time to get here.

Keep having fun, always pay attention to detail!

Rick and Joy Harrison 7316 Houston Drive Hitchcock TX 77563 USA

Email: Joy or Rick

Submitted by BASEwiki on 2007-06-04 | Last Modified on 2010-04-16

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