Currently the membership number 5273 is assigned to a couple in San Antonio, TX...possibly a previous owner or just a reassigned a "retired" number. Membership numbers stay with the people, not trailer...at least until the people are no longer members. Then it is retired for a couple of years and reassigned to someone new.
You can be a member of WBCCI no matter where you live, it's an International club. You may not have many members to rally with, but you could be a club member none the less.