If you are trying to "read" the freezemark on your Mustang, you can use the decoder below. Any questions please contact NAMAR.
If you are wondering where your Mustang lived at time of capture, the registration number will tell you. In the example to the right, the registration number means that this Mustang came from Oregon.
| Arizona 80001-160000 |
California 160001-240000 |
| Colorado 240001-320000 |
Idaho 320001-400000 |
| Montana 400001-480000 |
Nevada 480001-640000 |
| New Mexico 640001-720000 |
Oregon 0-80000 |
| Utah 720001-800000 |
Wyoming 800001-880000 |
| Eastern States 880001-880100 |
