[ IP ]
131.193.121.81
#540,422Top IPs · 1M scope0 domains
Overview
Top IPs list rank
- 1M
- #540,422(12 observation hits)
- Hosted domains (90 days)
- 0
- Hosted domains (all time)
- 0
- First seen
- Last seen
- Wed Sep 09 2026 03:08:10 GM
- PDNS hits (90 days)
- 13
- Country
- US
- Snapshot
- 1970-01-01
Network operated by University of Illinois Chicago (UIAC-Z) (UIC-ISN-NET).
List rank history
30 daily snapshots in the Top IPs list (1M scope). Lower rank numbers indicate more accumulated passive-DNS observation evidence.
Whois — 131.193.121.81
- Netname
- UIC-ISN-NET
- Organization
- University of Illinois Chicago (UIAC-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: 131.193.0.0 - 131.193.255.255 CIDR: 131.193.0.0/16 NetName: UIC-ISN-NET NetHandle: NET-131-193-0-0-1 Parent: NET131 (NET-131-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: University of Illinois Chicago (UIAC-Z) RegDate: 1989-01-04 Updated: 2024-04-12 Ref: https://rdap.arin.net/registry/ip/131.193.0.0 OrgName: University of Illinois Chicago OrgId: UIAC-Z Address: ACCC MC 135 Address: 1940 West Taylor Avenue City: Chicago StateProv: IL PostalCode: 60612-7352 Country: US RegDate: 2023-02-01 Updated: 2025-05-01 Ref: https://rdap.arin.net/registry/entity/UIAC-Z OrgTechHandle: NEUMA73-ARIN OrgTechName: Neumann, Paul OrgTechPhone: +1-312-355-0113 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/NEUMA73-ARIN OrgTechHandle: NUTAL1-ARIN OrgTechName: Nutall, Charles OrgTechPhone: +1-773-556-9914 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/NUTAL1-ARIN OrgTechHandle: PEREZ906-ARIN OrgTechName: Perez, Esteban OrgTechPhone: +1-312-996-9221 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/PEREZ906-ARIN OrgAbuseHandle: PEREZ906-ARIN OrgAbuseName: Perez, Esteban OrgAbusePhone: +1-312-996-9221 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/PEREZ906-ARIN OrgTechHandle: CREHA2-ARIN OrgTechName: Crehan, Jelene OrgTechPhone: +1-312-996-6834 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/CREHA2-ARIN RTechHandle: CREHA2-ARIN RTechName: Crehan, Jelene RTechPhone: +1-312-996-6834 RTechEmail: [email protected] RTechRef: https://rdap.arin.net/registry/entity/CREHA2-ARIN RTechHandle: MARCY1-ARIN RTechName: Marcyniuk, William RTechPhone: +1-312-996-6834 RTechEmail: [email protected] RTechRef: https://rdap.arin.net/registry/entity/MARCY1-ARIN RTechHandle: PEREZ906-ARIN RTechName: Perez, Esteban RTechPhone: +1-312-996-9221 RTechEmail: [email protected] RTechRef: https://rdap.arin.net/registry/entity/PEREZ906-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 |
|---|---|---|---|---|
| uic.edu | #69,457 | 2026-07-14 | 2026-09-09 | 13 |