WHOIS
Lookup an IP or domain. Uses IANA referral first, then registry WHOIS.
### IANA response (whois.iana.org) % IANA WHOIS server % for more information on IANA, visit http://www.iana.org % This query returned 1 object refer: whois.arin.net inetnum: 199.0.0.0 - 199.255.255.255 organisation: ARIN status: ALLOCATED whois: whois.arin.net changed: 1993-05 source: IANA ### Registry response (whois.arin.net) # # 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. # # # Query terms are ambiguous. The query is assumed to be: # "n 199.16.220.189" # # Use "?" to get help. # NetRange: 199.16.216.0 - 199.16.223.255 CIDR: 199.16.216.0/21 NetName: RTC-NET NetHandle: NET-199-16-216-0-1 Parent: NET199 (NET-199-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: RTC Communications Corp. (RTCCO) RegDate: 2010-07-19 Updated: 2023-06-22 Ref: https://rdap.arin.net/registry/ip/199.16.216.0 OrgName: RTC Communications Corp. OrgId: RTCCO Address: 117 W 8th St Address: PO Box 507 City: Rochester StateProv: IN PostalCode: 46975 Country: US RegDate: 2010-03-15 Updated: 2025-05-06 Ref: https://rdap.arin.net/registry/entity/RTCCO OrgNOCHandle: RTCEN-ARIN OrgNOCName: RTC Engineering OrgNOCPhone: +1-574-223-2191 OrgNOCEmail: engineering@rtc1.com OrgNOCRef: https://rdap.arin.net/registry/entity/RTCEN-ARIN OrgDNSHandle: RTCEN-ARIN OrgDNSName: RTC Engineering OrgDNSPhone: +1-574-223-2191 OrgDNSEmail: engineering@rtc1.com OrgDNSRef: https://rdap.arin.net/registry/entity/RTCEN-ARIN OrgAbuseHandle: RTCAB1-ARIN OrgAbuseName: RTC Abuse OrgAbusePhone: +1-574-223-2191 OrgAbuseEmail: abuse@rtc1.com OrgAbuseRef: https://rdap.arin.net/registry/entity/RTCAB1-ARIN OrgTechHandle: RTCEN-ARIN OrgTechName: RTC Engineering OrgTechPhone: +1-574-223-2191 OrgTechEmail: engineering@rtc1.com OrgTechRef: https://rdap.arin.net/registry/entity/RTCEN-ARIN OrgRoutingHandle: RTCEN-ARIN OrgRoutingName: RTC Engineering OrgRoutingPhone: +1-574-223-2191 OrgRoutingEmail: engineering@rtc1.com OrgRoutingRef: https://rdap.arin.net/registry/entity/RTCEN-ARIN RTechHandle: RTCEN-ARIN RTechName: RTC Engineering RTechPhone: +1-574-223-2191 RTechEmail: engineering@rtc1.com RTechRef: https://rdap.arin.net/registry/entity/RTCEN-ARIN RAbuseHandle: RTCEN-ARIN RAbuseName: RTC Engineering RAbusePhone: +1-574-223-2191 RAbuseEmail: engineering@rtc1.com RAbuseRef: https://rdap.arin.net/registry/entity/RTCEN-ARIN RNOCHandle: RTCEN-ARIN RNOCName: RTC Engineering RNOCPhone: +1-574-223-2191 RNOCEmail: engineering@rtc1.com RNOCRef: https://rdap.arin.net/registry/entity/RTCEN-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. #