It's also at 010.010.2056 or 0x8080808 or 01002004010. I made a little tool a while ago that iterates over all the options that I know of: https://lucb1e.com/randomprojects/php/funnip.php?ip=8.8.8.8 The variant found by OP is apparently the very last option that my tool generates. These days, Firefox is a bit boring (okay, okay, I'll admit it's a good choice for security) and translates these at the first opportunity…
Name borrowed from https://github.com/ian-hamlin/ipdec
Note the trietool "list" command prints data as %d not %u. To fix, edit list_enum_func() in trietool.c
sed -n 's/ //;wip4dec.l' {xc} jmp 0;
{xa}|{xb} {
switch(o){
case 0: y=atoi(yytext);if(y255)break;x=x+y*65536;y=0;o++;break;
case 2: y=atoi(yytext);if(y>255)break;x=x+y*256;y=0;o++;break;
case 3: y=atoi(yytext);if(y>255)break;x=x+y;printf("%s\t%u\n",getenv("x"),x);unsetenv("x");break;
default: break;
}
}
.|\n
%%
int main(){ yylex();exit(0) ;}
eof
flex -8iCrf ip4dec.l
cc -std=c89 -Wall -pedantic -I. -pipe lex.yy.c -static -o ip4dec
usage: ip4dec example: echo example.com 93.184.216.34 icann|ip4dec
output: example.com 1572395042