131.193.0.33
Education
Data retrieved at
Network
ASN
IP Range
Company
University of Illinois Chicago
Network
UIC-ISN-NET
Using networksdb.io for network lookups.
Hostname
Not available.
Type
Education
Handle
NET-131-193-0-0-1
Registered
1989-01-04
Last Changed
2024-04-12
View raw RDAP
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "131.193.0.0",
"length": 16
}
],
"endAddress": "131.193.255.255",
"entities": [
{
"entities": [
{
"events": [
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},
{
"eventAction": "registration",
"eventDate": "2017-01-25T12:36:46-05:00"
}
],
"handle": "CREHA2-ARIN",
"links": [
{
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"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
},
{
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"type": "application/xml",
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}
],
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"text",
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[
"fn",
{},
"text",
"Jelene Crehan"
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{},
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]
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{},
"text",
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[
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}
],
"handle": "NEUMA73-ARIN",
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},
{
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"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
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],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
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],
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}
],
"roles": [
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],
"vcardArray": [
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[
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{},
"text",
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],
[
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{
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},
"text",
[
"",
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]
],
[
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{},
"text",
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],
[
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{},
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[
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"+1-312-355-0113"
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"+1-312-355-0113"
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},
{
"events": [
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"eventDate": "2024-06-05T13:43:01-04:00"
},
{
"eventAction": "registration",
"eventDate": "2024-06-05T13:43:01-04:00"
}
],
"handle": "NUTAL1-ARIN",
"links": [
{
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"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
},
{
"href": "https://whois.arin.net/rest/poc/NUTAL1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
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],
"title": "Unvalidated POC"
}
],
"roles": [
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],
"vcardArray": [
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[
[
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{},
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[
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{
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},
"text",
[
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],
[
"fn",
{},
"text",
"Charles Nutall"
],
[
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{},
"text",
[
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"",
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""
]
],
[
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{},
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[
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{},
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],
[
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{
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]
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"text",
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],
[
"tel",
{
"type": [
"work",
"cell"
]
},
"text",
"+1-773-556-9914"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-05-01T10:57:24-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-02-01T19:37:03-05:00"
}
],
"handle": "UIAC-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UIAC-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
},
{
"href": "https://whois.arin.net/rest/org/UIAC-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"University of Illinois Chicago"
],
[
"adr",
{
"label": "ACCC MC 135\n1940 West Taylor Avenue\nChicago\nIL\n60612-7352\nUnited States"
},
"text",
[
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]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
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"eventDate": "2025-11-18T12:40:15-05:00"
},
{
"eventAction": "registration",
"eventDate": "2017-01-25T12:36:46-05:00"
}
],
"handle": "CREHA2-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CREHA2-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
},
{
"href": "https://whois.arin.net/rest/poc/CREHA2-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "Technology Solutions\n728 W. Roosevelt Rd, M/C 010\nChicago\nIL\n60607\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Jelene Crehan"
],
[
"n",
{},
"text",
[
"Crehan",
"Jelene",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-312-355-3101"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+1-312-996-6834"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-30T09:24:03-04:00"
},
{
"eventAction": "registration",
"eventDate": "2022-08-30T10:59:42-04:00"
}
],
"handle": "PEREZ906-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/PEREZ906-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
},
{
"href": "https://whois.arin.net/rest/poc/PEREZ906-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
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],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
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},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Esteban Perez"
],
[
"n",
{},
"text",
[
"Perez",
"Esteban",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-312-996-9221"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-03-06T10:48:20-05:00"
},
{
"eventAction": "registration",
"eventDate": "2012-06-01T15:16:28-04:00"
}
],
"handle": "MARCY1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MARCY1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
},
{
"href": "https://whois.arin.net/rest/poc/MARCY1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-03-06"
],
"title": "Unvalidated POC"
}
],
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "ACCC MC 135\r\n1940 W Taylor Rm 124\nChicago\nIL\n60612\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"William Marcyniuk"
],
[
"n",
{},
"text",
[
"Marcyniuk",
"William",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-312-996-1550"
],
[
"tel",
{
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"fax"
]
},
"text",
"+1-312-996-6834"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-04-12T17:20:32-04:00"
},
{
"eventAction": "registration",
"eventDate": "1989-01-04T00:00:00-05:00"
}
],
"handle": "NET-131-193-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/131.193.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
},
{
"href": "https://whois.arin.net/rest/net/NET-131-193-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
}
],
"name": "UIC-ISN-NET",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/131.193.0.33"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-131-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "131.193.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}
Security
No security threats detected for this IP.
VPN
Proxy
Tor
Hosting
Residential Proxy
Bogon
Abuser
Crawler
RPKI
RPKI Origin Validation
RPKI verifies that an IP prefix is legitimately announced by the authorized Autonomous System (ASN) using Route Origin Authorizations (ROAs).
Unknown.
No valid ROA was found for this prefix.
UNKNOWN
Validated Prefix
131.193.0.0/16
Authorized ASN
Not available.
Abuse Contacts
IP Geolocation
Country
United States
City
Chicago (📍 60607)
Illinois
Time Zone
America/Chicago
Coordinates
41.8719, -87.6589
Continent
North America
European Union
No.
Phone prefix
+1
Currency
US Dollar (USD $)