[ IP ]

38.173.42.4

#560,021Top IPs · 1M scope0 domains

Overview

Top IPs list rank

1M: #560,021(18 observation hits)

Hosted domains (90 days): 0
Hosted domains (all time): 0
First seen: Wed Aug 05 2026 18:17:58 GM
Last seen: Sun Sep 27 2026 03:15:16 GM
PDNS hits (90 days): 18
Country: US
Snapshot: 1970-01-01

Network operated by Cogent Communications, LLC (COGC) (COGENT-A).

List rank history

30 daily snapshots in the Top IPs list (1M scope). Lower rank numbers indicate more accumulated passive-DNS observation evidence.

Whois — 38.173.42.4

Netname: COGENT-A
Organization: Cogent Communications, LLC (COGC)
Country: US
ASN: —

Registry record

WHOIS

Registry fields

Network range: 38.0.0.0 - 38.255.255.255
CIDR: 38.0.0.0/8
Network name: COGENT-A
Net Handle: NET-38-0-0-0-1
Parent network: ()

Hosted domains — PDNS pivot

No hosted domains found for 38.173.42.4 in passive DNS yet.

# # 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 38.173.42.4" # # Use "?" to get help. # 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: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/IPALL-ARIN OrgAbuseHandle: COGEN-ARIN OrgAbuseName: Cogent Abuse OrgAbusePhone: +1-877-875-4311 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/COGEN-ARIN OrgNOCHandle: ZC108-ARIN OrgNOCName: Cogent Communications OrgNOCPhone: +1-877-875-4311 OrgNOCEmail: [email protected] OrgNOCRef: https://rdap.arin.net/registry/entity/ZC108-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. #