Organization
MARINE CORPS CYBERSPACE OPERATIONS GROUP
NETBLK-USMC-C2
Location
Quantico (Marine Corps Base Quantico)
Virginia, United States (US)
Hostname
204-223-host.usmc.mil
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- Virginia
- City
- Quantico (Marine Corps Base Quantico)
- Continent
- North America
- Coordinates
- 38.5287, -77.4096 View on map ↗
Network Information
IP Range 204.223.0.0 – 204.223.255.255 CIDR 204.223.0.0/16 Network Name NETBLK-USMC-C2 Handle NET-204-223-0-0-2 Type ALLOCATION Parent Network NET-204-223-0-0-1 Organization MARINE CORPS CYBERSPACE OPERATIONS GROUP Organization ID UNOC Address COMMANDING OFFICER, MCNOSC, 27410 HOT PATCH ROAD, QUANTICO, VA, 22134, United States Country United States (US) Registry ARIN Registered On Aug 13, 2025 Last Updated Aug 13, 2025 Status
active
ASN & Routing
Origin AS AS637 AS Name DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD), US Announced Prefix 204.223.42.0/23 AS Registry ARIN Prefix Country United States (US) Allocated 1995-01-05 RPKI Origin Not found (no ROA covers this prefix)
Reverse DNS
PTR Record
Abuse Contact
Raw RDAP Response
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "204.223.0.0",
"length": 16
}
],
"endAddress": "204.223.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-02-12T13:52:28-05:00"
},
{
"eventAction": "registration",
"eventDate": "2009-06-24T09:41:15-04:00"
}
],
"handle": "REGIS10-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/REGIS10-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/204.223.42.0"
},
{
"href": "https://whois.arin.net/rest/poc/REGIS10-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/204.223.42.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "DISA-Columbus\n300 North James Road\nWhitehall\nOH\n43213\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Registration"
],
[
"org",
{},
"text",
"DoD Network Information Center"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-844-347-2457;ext2"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-12T11:49:13-04:00"
},
{
"eventAction": "registration",
"eventDate": "1997-07-21T00:00:00-04:00"
}
],
"handle": "UNOC",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UNOC",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/204.223.42.0"
},
{
"href": "https://whois.arin.net/rest/org/UNOC",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/204.223.42.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Mailbox: [email protected]"
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"MARINE CORPS CYBERSPACE OPERATIONS GROUP"
],
[
"adr",
{
"label": "COMMANDING OFFICER, MCNOSC\r\n27410 HOT PATCH ROAD\nQUANTICO\nVA\n22134\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-08-13T17:04:44-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-08-13T17:04:44-04:00"
}
],
"handle": "NET-204-223-0-0-2",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/204.223.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/204.223.42.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-204-223-0-0-2",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/204.223.42.0"
},
{
"href": "https://rdap.arin.net/registry/ip/204.223.0.0/16",
"rel": "up",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/204.223.42.0"
}
],
"name": "NETBLK-USMC-C2",
"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/204.223.42.0"
}
],
"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/204.223.42.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-204-223-0-0-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "204.223.0.0",
"status": [
"active"
],
"type": "ALLOCATION"
} Contact details of private individuals are redacted.