Organization
RackNerd LLC
RACKNERD-NET
Location
West Chicago
Illinois, United States (US)
Hostname
0-203-237-104.reverse-dns
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- Illinois
- City
- West Chicago
- Continent
- North America
- Coordinates
- 41.8959, -88.2169 View on map ↗
Network Information
IP Range 104.237.203.0 – 104.237.203.7 CIDR 104.237.203.0/29 Network Name RACKNERD-NET Handle NET-104-237-203-0-1 Type ALLOCATION Parent Network NET-104-237-192-0-2 Organization RackNerd LLC Organization ID RL-872 Address 10602 N. Trademark Pkwy Suite 511, Rancho Cucamonga, CA, 91730, United States Country United States (US) Registry ARIN Registered On Jun 05, 2023 Last Updated Jun 05, 2023 Status
active
ASN & Routing
Origin AS AS20278 AS Name NEXEON - Nexeon Technologies, Inc., US Announced Prefix 104.237.203.0/24 AS Registry ARIN Prefix Country United States (US) Allocated 2014-11-20 RPKI Origin Valid (covered by a matching ROA)
Reverse DNS
PTR Record
Abuse Contact
Raw RDAP Response
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "104.237.203.0",
"length": 29
}
],
"endAddress": "104.237.203.7",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-04-09T00:31:04-04:00"
},
{
"eventAction": "registration",
"eventDate": "2022-01-06T15:52:23-05:00"
}
],
"handle": "RACKN3-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/RACKN3-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/104.237.203.0"
},
{
"href": "https://whois.arin.net/rest/poc/RACKN3-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/104.237.203.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Technical Support is available via: [email protected]",
"",
"Report any abuse to abuse department via e-mail: [email protected]"
],
"title": "Registration Comments"
}
],
"roles": [
"administrative",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "10602 N. Trademark Pkwy Suite #511\nRancho Cucamonga\nCA\n91730\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"RackNerd NOC"
],
[
"org",
{},
"text",
"RackNerd LLC"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-888-881-6373"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-10-09T18:23:49-04:00"
},
{
"eventAction": "registration",
"eventDate": "2022-03-02T15:56:54-05:00"
}
],
"handle": "RAD128-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/RAD128-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/104.237.203.0"
},
{
"href": "https://whois.arin.net/rest/poc/RAD128-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/104.237.203.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Report any abuse to abuse department via e-mail: [email protected]"
],
"title": "Registration Comments"
}
],
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "10602 N. Trademark Pkwy Suite #511\nRancho Cucamonga\nCA\n91730\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"RackNerd Abuse Department"
],
[
"org",
{},
"text",
"RackNerd LLC"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-888-881-6373"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-03-02T15:57:30-05:00"
},
{
"eventAction": "registration",
"eventDate": "2021-10-20T17:48:07-04:00"
}
],
"handle": "RL-872",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/RL-872",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/104.237.203.0"
},
{
"href": "https://whois.arin.net/rest/org/RL-872",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/104.237.203.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"https://www.racknerd.com",
"Support is available 24x7 at [email protected]",
"Report abuse to: [email protected]"
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"RackNerd LLC"
],
[
"adr",
{
"label": "10602 N. Trademark Pkwy Suite 511\nRancho Cucamonga\nCA\n91730\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-06-05T18:21:31-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-06-05T18:21:31-04:00"
}
],
"handle": "NET-104-237-203-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/104.237.203.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/104.237.203.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-104-237-203-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/104.237.203.0"
},
{
"href": "https://rdap.arin.net/registry/ip/104.237.192.0/19",
"rel": "up",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/104.237.203.0"
}
],
"name": "RACKNERD-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/104.237.203.0"
}
],
"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/104.237.203.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-104-237-192-0-2",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "104.237.203.0",
"status": [
"active"
],
"type": "ALLOCATION"
} Contact details of private individuals are redacted.