# # 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. # # start NetRange: 38.0.0.0 - 38.255.255.255 CIDR: 38.0.0.0/8 NetName: COGENT-A NetHandle: NET-38-0-0-0-1 Parent: () NetType: Direct Allocation OriginAS: Organization: Cogent Communications, LLC (COGC) RegDate: 1991-04-16 Updated: 2025-09-23 Ref: https://rdap.arin.net/registry/ip/38.0.0.0 OrgName: Cogent Communications, LLC OrgId: COGC Address: 2450 N Street NW City: Washington StateProv: DC PostalCode: 20037 Country: US RegDate: 2000-05-30 Updated: 2025-09-23 Comment: Geofeed https://geofeed.cogentco.com/geofeed.csv Ref: https://rdap.arin.net/registry/entity/COGC ReferralServer: rwhois://rwhois.cogentco.com:4321 OrgTechHandle: IPALL-ARIN OrgTechName: IP Allocation OrgTechPhone: +1-877-875-4311 OrgTechEmail: ipalloc@cogentco.com OrgTechRef: https://rdap.arin.net/registry/entity/IPALL-ARIN OrgAbuseHandle: COGEN-ARIN OrgAbuseName: Cogent Abuse OrgAbusePhone: +1-877-875-4311 OrgAbuseEmail: abuse@cogentco.com OrgAbuseRef: https://rdap.arin.net/registry/entity/COGEN-ARIN OrgNOCHandle: ZC108-ARIN OrgNOCName: Cogent Communications OrgNOCPhone: +1-877-875-4311 OrgNOCEmail: noc@cogentco.com OrgNOCRef: https://rdap.arin.net/registry/entity/ZC108-ARIN # end # start NetRange: 38.65.204.0 - 38.65.205.255 CIDR: 38.65.204.0/23 NetName: SYNDEO-CGNT-NET-1 NetHandle: NET-38-65-204-0-1 Parent: COGENT-A (NET-38-0-0-0-1) NetType: Reallocated OriginAS: Organization: Syndeo Networks, Inc (SN-20) RegDate: 2018-07-25 Updated: 2018-07-25 Ref: https://rdap.arin.net/registry/ip/38.65.204.0 OrgName: Syndeo Networks, Inc OrgId: SN-20 Address: 300 Cardinal Dr. Address: Suite: 110 City: St. Charels StateProv: IL PostalCode: 60175 Country: US RegDate: 2011-11-08 Updated: 2024-11-25 Ref: https://rdap.arin.net/registry/entity/SN-20 ReferralServer: rwhois://rwhois.syndeonetwork.com:4321 OrgNOCHandle: BOTTS19-ARIN OrgNOCName: Botts, Chris OrgNOCPhone: +1-630-457-4218 OrgNOCEmail: cbotts@syndeonetwork.com OrgNOCRef: https://rdap.arin.net/registry/entity/BOTTS19-ARIN OrgTechHandle: BOTTS19-ARIN OrgTechName: Botts, Chris OrgTechPhone: +1-630-457-4218 OrgTechEmail: cbotts@syndeonetwork.com OrgTechRef: https://rdap.arin.net/registry/entity/BOTTS19-ARIN OrgTechHandle: ANP1-ARIN OrgTechName: Patel, Amit N OrgTechPhone: +1-630-457-4218 OrgTechEmail: support@syndeonetwork.com OrgTechRef: https://rdap.arin.net/registry/entity/ANP1-ARIN OrgNOCHandle: ANP1-ARIN OrgNOCName: Patel, Amit N OrgNOCPhone: +1-630-457-4218 OrgNOCEmail: support@syndeonetwork.com OrgNOCRef: https://rdap.arin.net/registry/entity/ANP1-ARIN OrgAbuseHandle: ANP1-ARIN OrgAbuseName: Patel, Amit N OrgAbusePhone: +1-630-457-4218 OrgAbuseEmail: support@syndeonetwork.com OrgAbuseRef: https://rdap.arin.net/registry/entity/ANP1-ARIN # end # # 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. # Found a referral to rwhois.cogentco.com:4321. %rwhois V-1.5:0010b0:00 rwhois.cogentco.com (CGNT rwhoisd 1.2.2) network:ID:NET4-2641CC0017 network:Network-Name:NET4-2641CC0017 network:IP-Network:38.65.204.0/23 network:Org-Name:Syndeo Networks network:Street-Address:350 E CERMAK RD network:City:CHICAGO network:State:IL network:Country:US network:Postal-Code:60616 network:Tech-Contact:ZC108-ARIN network:Updated:2024-05-13 19:00:10 %ok