# # 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 1997-2026, American Registry for Internet Numbers, Ltd. # NetRange: 216.241.64.0 - 216.241.79.255 CIDR: 216.241.64.0/20 NetName: CTC-NETBLK1 NetHandle: NET-216-241-64-0-1 Parent: NET216 (NET-216-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Chicago Trading Company (CTCLL) RegDate: 2008-01-18 Updated: 2021-12-14 Ref: https://rdap.arin.net/registry/ip/216.241.64.0 OrgName: Chicago Trading Company OrgId: CTCLL Address: 440 S. LaSalle Street, 4th Floor City: Chicago StateProv: IL PostalCode: 60605 Country: US RegDate: 2006-10-03 Updated: 2010-07-07 Ref: https://rdap.arin.net/registry/entity/CTCLL OrgTechHandle: NETWO1371-ARIN OrgTechName: Network Operations OrgTechPhone: +1-312-863-8000 OrgTechEmail: noc@chicagotrading.com OrgTechRef: https://rdap.arin.net/registry/entity/NETWO1371-ARIN OrgAbuseHandle: NETWO1371-ARIN OrgAbuseName: Network Operations OrgAbusePhone: +1-312-863-8000 OrgAbuseEmail: noc@chicagotrading.com OrgAbuseRef: https://rdap.arin.net/registry/entity/NETWO1371-ARIN OrgNOCHandle: NETWO1371-ARIN OrgNOCName: Network Operations OrgNOCPhone: +1-312-863-8000 OrgNOCEmail: noc@chicagotrading.com OrgNOCRef: https://rdap.arin.net/registry/entity/NETWO1371-ARIN RNOCHandle: NETWO1371-ARIN RNOCName: Network Operations RNOCPhone: +1-312-863-8000 RNOCEmail: noc@chicagotrading.com RNOCRef: https://rdap.arin.net/registry/entity/NETWO1371-ARIN RAbuseHandle: NETWO1371-ARIN RAbuseName: Network Operations RAbusePhone: +1-312-863-8000 RAbuseEmail: noc@chicagotrading.com RAbuseRef: https://rdap.arin.net/registry/entity/NETWO1371-ARIN RTechHandle: NETWO1371-ARIN RTechName: Network Operations RTechPhone: +1-312-863-8000 RTechEmail: noc@chicagotrading.com RTechRef: https://rdap.arin.net/registry/entity/NETWO1371-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 1997-2026, American Registry for Internet Numbers, Ltd. #