APNIC has whowas also https://www.apnic.net/static/whowas-ui/
For RWhois, check with the organization operating rwhoisd? They might have the information beyond RWhois. Yang On Mon, Dec 18, 2017 at 9:11 AM, Benoit Panizzon <benoit.paniz...@imp.ch> wrote: > Well @ RIPE ist is quite simple to query historical data: > > https://www.ripe.net/manage-ips-and-asns/db/support/documentation/ripe-database-documentation/types-of-queries/16-12-historical-queries > > I don't know if other registries offer similar services. > > Mit freundlichen Grüssen > > -Benoît Panizzon- > -- > I m p r o W a r e A G - Leiter Commerce Kunden > ______________________________________________________ > > Zurlindenstrasse 29 Tel +41 61 826 93 00 > CH-4133 Pratteln Fax +41 61 826 93 01 > Schweiz Web http://www.imp.ch > ______________________________________________________