[ IP ]
137.187.52.151
#435,099Top IPs · 1M scope0 domains
Overview
Top IPs list rank
- 1M
- #435,099(10 observation hits)
- Hosted domains (90 days)
- 0
- Hosted domains (all time)
- 0
- First seen
- Last seen
- Fri Aug 28 2026 18:00:08 GM
- PDNS hits (90 days)
- 10
- Country
- US
- Snapshot
- 1970-01-01
Network operated by National Institutes of Health (NIH-Z) (NIHNET-2).
List rank history
30 daily snapshots in the Top IPs list (1M scope). Lower rank numbers indicate more accumulated passive-DNS observation evidence.
Whois — 137.187.52.151
- Netname
- NIHNET-2
- Organization
- National Institutes of Health (NIH-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: 137.187.0.0 - 137.187.255.255 CIDR: 137.187.0.0/16 NetName: NIHNET-2 NetHandle: NET-137-187-0-0-1 Parent: NET137 (NET-137-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: National Institutes of Health (NIH-Z) RegDate: 1989-12-13 Updated: 2022-10-28 Ref: https://rdap.arin.net/registry/ip/137.187.0.0 OrgName: National Institutes of Health OrgId: NIH-Z Address: 9000 Rockville Pike Address: MSC 4805 City: Bethesda StateProv: MD PostalCode: 20892-4805 Country: US RegDate: 2022-10-09 Updated: 2025-06-05 Ref: https://rdap.arin.net/registry/entity/NIH-Z OrgNOCHandle: NIHAD-ARIN OrgNOCName: NIHadm OrgNOCPhone: +1-301-402-3141 OrgNOCEmail: [email protected] OrgNOCRef: https://rdap.arin.net/registry/entity/NIHAD-ARIN OrgTechHandle: NIHTE-ARIN OrgTechName: NIHtechs OrgTechPhone: +1-301-402-3141 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/NIHTE-ARIN OrgAbuseHandle: NIHTE-ARIN OrgAbuseName: NIHtechs OrgAbusePhone: +1-301-402-3141 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/NIHTE-ARIN OrgRoutingHandle: NIHTE-ARIN OrgRoutingName: NIHtechs OrgRoutingPhone: +1-301-402-3141 OrgRoutingEmail: [email protected] OrgRoutingRef: https://rdap.arin.net/registry/entity/NIHTE-ARIN OrgDNSHandle: NIHAD-ARIN OrgDNSName: NIHadm OrgDNSPhone: +1-301-402-3141 OrgDNSEmail: [email protected] OrgDNSRef: https://rdap.arin.net/registry/entity/NIHAD-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. #
Hosted domains — PDNS pivot
| Domain | Rank | First seen | Last seen | Hits |
|---|---|---|---|---|
| nih.gov | #543 | 2026-07-14 | 2026-08-28 | 10 |