Organization
THUNDERBOX INC
THUND-20
Location
Kalamazoo (Central Business District)
Michigan, United States (US)
Hostname
—
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- Michigan
- City
- Kalamazoo (Central Business District)
- Continent
- North America
- Coordinates
- 42.2933, -85.5852 View on map ↗
Network Information
IP Range 203.33.152.0 – 203.33.153.255 CIDR 203.33.152.0/23 Network Name THUND-20 Handle NET-203-33-152-0-1 Type DIRECT ALLOCATION Parent Network NET-203-0-0-0-1 Organization THUNDERBOX INC Organization ID THUND-20 Address 251 North Rose Street, Suite 200, Kalamazoo, MI, 49007, United States Country United States (US) Registry ARIN Registered On Dec 23, 2025 Last Updated Dec 23, 2025 Status
active
ASN & Routing
Origin AS AS6079 AS Name RCN-AS - RCN, US Announced Prefix 203.33.152.0/23 AS Registry ARIN Prefix Country United States (US) Allocated 2025-12-23 RPKI Origin Valid (covered by a matching ROA)
Reverse DNS
No PTR record is published for this address.
Abuse Contact
Raw RDAP Response
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "203.33.152.0",
"length": 23
}
],
"endAddress": "203.33.153.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-05T17:42:11-05:00"
},
{
"eventAction": "registration",
"eventDate": "2021-08-25T14:27:33-04:00"
}
],
"handle": "ADMIN7873-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ADMIN7873-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/203.33.152.0"
},
{
"href": "https://whois.arin.net/rest/poc/ADMIN7873-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/203.33.152.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative",
"abuse",
"noc",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "251 NORTH ROSE STREET, SUITE 200\nKALAMAZOO\nMI\n49007\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"ADMIN"
],
[
"org",
{},
"text",
"THUNDERBOX INC"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-269-220-0290"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2021-09-20T17:16:53-04:00"
},
{
"eventAction": "registration",
"eventDate": "2021-09-20T17:16:53-04:00"
}
],
"handle": "THUND-20",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/THUND-20",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/203.33.152.0"
},
{
"href": "https://whois.arin.net/rest/org/THUND-20",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/203.33.152.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Standard NOC Hours:",
"",
"9:00 AM to 6:00 PM EST, MONDAY - FRIDAY"
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"THUNDERBOX INC"
],
[
"adr",
{
"label": "251 North Rose Street\nSuite 200\nKalamazoo\nMI\n49007\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-23T11:30:43-05:00"
},
{
"eventAction": "registration",
"eventDate": "2025-12-23T11:30:43-05:00"
}
],
"handle": "NET-203-33-152-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/203.33.152.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/203.33.152.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-203-33-152-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/203.33.152.0"
}
],
"name": "THUND-20",
"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/203.33.152.0"
}
],
"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/203.33.152.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-203-0-0-0-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "203.33.152.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
} Contact details of private individuals are redacted.