140.221.0.26
ISP
Data retrieved at
Network
ASN
IP Range
Company
Argonne National Laboratory
Network
ARGONNE2
Using networksdb.io for network lookups.
Hostname
Not available.
Type
ISP
Handle
NET-140-221-0-0-1
Registered
1990-06-13
Last Changed
2023-03-14
View raw RDAP
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "140.221.0.0",
"length": 16
}
],
"endAddress": "140.221.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-15T08:36:49-04:00"
},
{
"eventAction": "registration",
"eventDate": "2003-12-09T13:15:45-05:00"
}
],
"handle": "NOCAN-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOCAN-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
},
{
"href": "https://whois.arin.net/rest/poc/NOCAN-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "9700 S Cass Ave\nLemont\nIL\n60439\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"noc-anl-gov"
],
[
"org",
{},
"text",
"Argonne National Lab"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-630-252-9999"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-15T08:36:34-04:00"
}
],
"handle": "LW26-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/LW26-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
},
{
"href": "https://whois.arin.net/rest/poc/LW26-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "9700 South Cass Avenue\nLemont\nIL\n60439\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Linda Winkler"
],
[
"n",
{},
"text",
[
"Winkler",
"Linda",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-630-252-7236"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-15T08:36:15-04:00"
},
{
"eventAction": "registration",
"eventDate": "2003-12-09T13:15:45-05:00"
}
],
"handle": "ABUSE482-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE482-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE482-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "9700 S Cass Ave\nLemont\nIL\n60439\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"abuse-anl-gov"
],
[
"org",
{},
"text",
"Argonne National Lab"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-630-252-9999"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-11T16:16:04-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-02-17T12:08:22-05:00"
}
],
"handle": "ANL-13-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ANL-13-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
},
{
"href": "https://whois.arin.net/rest/org/ANL-13-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Argonne National Laboratory"
],
[
"adr",
{
"label": "9700 South Cass Avenue\nArgonne\nIL\n60439\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-15T08:36:34-04:00"
}
],
"handle": "LW26-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/LW26-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
},
{
"href": "https://whois.arin.net/rest/poc/LW26-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "9700 South Cass Avenue\nLemont\nIL\n60439\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Linda Winkler"
],
[
"n",
{},
"text",
[
"Winkler",
"Linda",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-630-252-7236"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-03-14T18:56:23-04:00"
},
{
"eventAction": "registration",
"eventDate": "1990-06-13T00:00:00-04:00"
}
],
"handle": "NET-140-221-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/140.221.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
},
{
"href": "https://whois.arin.net/rest/net/NET-140-221-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/140.221.0.26"
}
],
"name": "ARGONNE2",
"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/140.221.0.26"
}
],
"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/140.221.0.26"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-140-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "140.221.0.0",
"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).
Valid.
This prefix is correctly authorized by a valid ROA.
VALID
Validated Prefix
140.221.0.0/18
Authorized ASN
AS683
Abuse Contacts
IP Geolocation
Country
United States
Time Zone
America/Chicago
Coordinates
37.751, -97.822
Continent
North America
European Union
No.
Phone prefix
+1
Currency
US Dollar (USD $)