Work 100 OMISS members with different call sign prefixes. On OMISS net frequencies and net times.
For the purpose of this award, the prefix is that part of the call sign up to and including the last digit, reading from the left (e.g.,
W1ABC = W1, KA3AUQ = KA3, 4X4AA = 4X4, Y51XZ = Y51, 4U47UN = 4U47)
Only log info is required.
Endorsements available: every 100 additional prefixes; also, Single Band, and 5-6-7-8 Band certificates will be available along with 100 prefix endorsements for each