[ IP ]

138.87.50.11

#381,790Top IPs · 1M scope0 domains

Overview

Top IPs list rank

1M: #381,790(24 observation hits)

Hosted domains (90 days): 0
Hosted domains (all time): 0
First seen: Wed Jul 15 2026 23:41:41 GM
Last seen
PDNS hits (90 days): 24
Country: US
Snapshot: 1970-01-01

Network operated by Illinois State University (ISU-3-Z) (ILSTU).

List rank history

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

Whois — 138.87.50.11

Netname: ILSTU
Organization: Illinois State University (ISU-3-Z)
Country: US
ASN: —

Registry record

WHOIS

Registry fields

Network range: 138.87.0.0 - 138.87.255.255
CIDR: 138.87.0.0/16
Network name: ILSTU
Net Handle: NET-138-87-0-0-1
Parent network: NET138 (NET-138-0-0-0-0)

Hosted domains — PDNS pivot

No hosted domains found for 138.87.50.11 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. # NetRange: 138.87.0.0 - 138.87.255.255 CIDR: 138.87.0.0/16 NetName: ILSTU NetHandle: NET-138-87-0-0-1 Parent: NET138 (NET-138-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Illinois State University (ISU-3-Z) RegDate: 1990-04-19 Updated: 2023-12-01 Ref: https://rdap.arin.net/registry/ip/138.87.0.0 OrgName: Illinois State University OrgId: ISU-3-Z Address: Administrative Technologies Address: Campus Box 3380 City: Normal StateProv: IL PostalCode: 61790-3380 Country: US RegDate: 2010-01-08 Updated: 2014-12-01 Ref: https://rdap.arin.net/registry/entity/ISU-3-Z OrgNOCHandle: ADMIN4406-ARIN OrgNOCName: Administrative Technologies OrgNOCPhone: +1-309-438-3611 OrgNOCEmail: [email protected] OrgNOCRef: https://rdap.arin.net/registry/entity/ADMIN4406-ARIN OrgTechHandle: ADMIN4406-ARIN OrgTechName: Administrative Technologies OrgTechPhone: +1-309-438-3611 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/ADMIN4406-ARIN OrgAbuseHandle: ISUA-ARIN OrgAbuseName: Illinois State University - Abuse OrgAbusePhone: +1-309-438-3611 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/ISUA-ARIN RTechHandle: ADMIN4406-ARIN RTechName: Administrative Technologies RTechPhone: +1-309-438-3611 RTechEmail: [email protected] RTechRef: https://rdap.arin.net/registry/entity/ADMIN4406-ARIN RNOCHandle: ADMIN4406-ARIN RNOCName: Administrative Technologies RNOCPhone: +1-309-438-3611 RNOCEmail: [email protected] RNOCRef: https://rdap.arin.net/registry/entity/ADMIN4406-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. #