# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2025, American Registry for Internet Numbers, Ltd. # NetRange: 192.81.231.0 - 192.81.231.255 CIDR: 192.81.231.0/24 NetName: SPIDERROCK-PLATFORM-SERVICES-B NetHandle: NET-192-81-231-0-1 Parent: NET192 (NET-192-0-0-0-0) NetType: Direct Allocation OriginAS: AS19193 Organization: SPIDERROCK HOLDINGS, LLC (SHL-87) RegDate: 2015-01-08 Updated: 2021-12-14 Ref: https://rdap.arin.net/registry/ip/192.81.231.0 OrgName: SPIDERROCK HOLDINGS, LLC OrgId: SHL-87 Address: 300 S Riverside Plz Address: Suite 2350 City: Chicago StateProv: IL PostalCode: 60605 Country: US RegDate: 2013-12-06 Updated: 2020-11-08 Comment: http://www.spiderrock.net Comment: Open 8am-11pm CT Ref: https://rdap.arin.net/registry/entity/SHL-87 OrgTechHandle: ESSEL3-ARIN OrgTechName: Esselstein, Alexander OrgTechPhone: +1-312-256-9620 OrgTechEmail: andrew.mayer@spiderrock.net OrgTechRef: https://rdap.arin.net/registry/entity/ESSEL3-ARIN OrgNOCHandle: ESSEL3-ARIN OrgNOCName: Esselstein, Alexander OrgNOCPhone: +1-312-256-9620 OrgNOCEmail: andrew.mayer@spiderrock.net OrgNOCRef: https://rdap.arin.net/registry/entity/ESSEL3-ARIN OrgAbuseHandle: ESSEL3-ARIN OrgAbuseName: Esselstein, Alexander OrgAbusePhone: +1-312-256-9620 OrgAbuseEmail: andrew.mayer@spiderrock.net OrgAbuseRef: https://rdap.arin.net/registry/entity/ESSEL3-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2025, American Registry for Internet Numbers, Ltd. #