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Will fail for input:
Florida 13.7.24.25
13.7.24.25
Chicago 13.17.12.5
uchicago
Nebraska
Tennessee 16.13.3.2
99.13.3.2
Frisco 15.35.18.1
Japan
Canada
France 18.55.7.25
18.55.7.25

try also:
awk '
NF > 1 && $NF ~ /^[0-9.][0-9.]*$/ {lv=$NF; $NF=""; l=lv " " $0; next}
$1 ~ /^[0-9.][0-9.]*$/ { if ($1 != lv) {print l; print $1} }
l=lv="";
' infile

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