[arin-tech-discuss] Easy way to check if a block is legacy?

John Curran jcurran at arin.net
Thu Nov 6 06:22:59 EST 2014

On Nov 6, 2014, at 11:06 AM, Aaron Hughes <aaronh at tcp0.com> wrote:
> ARIN Tech Team,
> In scripting some ROA related stuff the question came up, how does one check to see if block is legacy. Is there a flag in restwhois to identify this?

Aaron -

An address block is legacy in origin if issued prior to ARIN's inception
on December 22, 1997.  Legacy address blocks may subsequently be covered 
by an RSA or LRSA agreement, so scripting specifically on being issued 
prior to ARIN's inception may to be fruitful.


John Curran
President and CEO

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