[ IP ]
129.43.254.39
#169,861Top IPs · 1M scope1 domain
Overview
Top IPs list rank
- 1M
- #169,861(1 domains)
- Hosted domains (90 days)
- 1
- Hosted domains (all time)
- 1
- First seen
- Wed Jul 15 2026 07:05:30 GM
- Last seen
- Sat Jul 25 2026 06:24:21 GM
- PDNS hits (90 days)
- 7
- Country
- US
- Snapshot
- 1970-01-01
Network operated by National Cancer Institute (NCI-1-Z) (NCI-FCRF).
List rank history
3 daily snapshots in the Top IPs list (1M scope). Lower rank numbers indicate more hosted domains in scope.
Whois — 129.43.254.39
- Netname
- NCI-FCRF
- Organization
- National Cancer Institute (NCI-1-Z)
- Country
- US
- ASN
- —
Full whois record
# # 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: 129.43.0.0 - 129.43.255.255 CIDR: 129.43.0.0/16 NetName: NCI-FCRF NetHandle: NET-129-43-0-0-1 Parent: NET129 (NET-129-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: National Cancer Institute (NCI-1-Z) RegDate: 1987-07-29 Updated: 2024-12-19 Ref: https://rdap.arin.net/registry/ip/129.43.0.0 OrgName: National Cancer Institute OrgId: NCI-1-Z Address: Frederick Cancer Research Facility Address: P.O. Box B, Building 430 City: Frederick StateProv: MD PostalCode: 21702 Country: US RegDate: 2024-12-19 Updated: 2024-12-19 Ref: https://rdap.arin.net/registry/entity/NCI-1-Z OrgAbuseHandle: RODRI1526-ARIN OrgAbuseName: Rodriguez, Sergio OrgAbusePhone: +1-301-846-5784 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/RODRI1526-ARIN OrgTechHandle: REYNO712-ARIN OrgTechName: Reynolds, Matthew OrgTechPhone: +1-301-846-7419 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/REYNO712-ARIN OrgTechHandle: TRAYN4-ARIN OrgTechName: Traynor, Derek OrgTechPhone: +1-301-846-5782 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/TRAYN4-ARIN OrgAbuseHandle: FREEM420-ARIN OrgAbuseName: Freeman, Natasha OrgAbusePhone: +1-301-846-6938 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/FREEM420-ARIN OrgDNSHandle: REYNO712-ARIN OrgDNSName: Reynolds, Matthew OrgDNSPhone: +1-301-846-7419 OrgDNSEmail: [email protected] OrgDNSRef: https://rdap.arin.net/registry/entity/REYNO712-ARIN OrgRoutingHandle: TRAYN4-ARIN OrgRoutingName: Traynor, Derek OrgRoutingPhone: +1-301-846-5782 OrgRoutingEmail: [email protected] OrgRoutingRef: https://rdap.arin.net/registry/entity/TRAYN4-ARIN OrgTechHandle: KRUSI-ARIN OrgTechName: Krusinski, Ed OrgTechPhone: +1-301-846-5783 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/KRUSI-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. #
Open ports — 129.43.254.39
Port scan not run for 129.43.254.39 yet. Probes are queued from passive DNS IPs in the worker pipeline.