Organization
DoD Network Information Center
DNIC-SUPERBLK2
Location
Columbus
Ohio, United States (US)
Hostname
—
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- Ohio
- City
- Columbus
- Continent
- North America
- Coordinates
- 39.9819, -82.9048 View on map ↗
Network Information
IP Range 192.172.21.0 – 192.172.220.255 CIDR 192.172.21.0/24, 192.172.22.0/23, 192.172.24.0/21, 192.172.32.0/19, 192.172.64.0/18, 192.172.128.0/18, 192.172.192.0/20, 192.172.208.0/21, 192.172.216.0/22, 192.172.220.0/24 Network Name DNIC-SUPERBLK2 Handle NET-192-172-21-0-2 Type ALLOCATION Parent Network NET-192-172-21-0-1 Organization DoD Network Information Center Organization ID DNIC Address 3990 E. Broad Street, Columbus, OH, 43218, United States Country United States (US) Registry ARIN Registered On Aug 26, 2025 Last Updated Aug 26, 2025 Status
active
ASN & Routing
Origin AS AS1602 AS Name DNIC-AS-01602 - Headquarters, USAISC, US Announced Prefix 192.172.28.0/24 AS Registry ARIN Prefix Country United States (US) Allocated 1993-12-06 RPKI Origin Not found (no ROA covers this prefix)
Reverse DNS
No PTR record is published for this address.
Abuse Contact
Raw RDAP Response
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "192.172.21.0",
"length": 24
},
{
"v4prefix": "192.172.22.0",
"length": 23
},
{
"v4prefix": "192.172.24.0",
"length": 21
},
{
"v4prefix": "192.172.32.0",
"length": 19
},
{
"v4prefix": "192.172.64.0",
"length": 18
},
{
"v4prefix": "192.172.128.0",
"length": 18
},
{
"v4prefix": "192.172.192.0",
"length": 20
},
{
"v4prefix": "192.172.208.0",
"length": 21
},
{
"v4prefix": "192.172.216.0",
"length": 22
},
{
"v4prefix": "192.172.220.0",
"length": 24
}
],
"endAddress": "192.172.220.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-02-12T10:14:24-05:00"
},
{
"eventAction": "registration",
"eventDate": "1993-05-26T19:47:50-04:00"
}
],
"handle": "MIL-HSTMST-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/192.172.28.0"
},
{
"href": "https://whois.arin.net/rest/poc/MIL-HSTMST-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/192.172.28.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"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",
"Network DoD"
],
[
"org",
{},
"text",
"DoD Network Information Center (DoD NIC)"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-844-347-2457;ext2"
]
]
]
},
{
"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/192.172.28.0"
},
{
"href": "https://whois.arin.net/rest/poc/REGIS10-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/192.172.28.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse"
],
"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": "2025-03-13T11:32:05-04:00"
}
],
"handle": "DNIC",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DNIC",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/192.172.28.0"
},
{
"href": "https://whois.arin.net/rest/org/DNIC",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/192.172.28.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"DoD Network Information Center"
],
[
"adr",
{
"label": "3990 E. Broad Street\nColumbus\nOH\n43218\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-08-26T12:29:14-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-08-26T12:29:14-04:00"
}
],
"handle": "NET-192-172-21-0-2",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/192.172.21.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/192.172.28.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-192-172-21-0-2",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/192.172.28.0"
},
{
"href": "https://rdap.arin.net/registry/ip/192.172.21.0/24",
"rel": "up",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/192.172.28.0"
}
],
"name": "DNIC-SUPERBLK2",
"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/192.172.28.0"
}
],
"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/192.172.28.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-192-172-21-0-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "192.172.21.0",
"status": [
"active"
],
"type": "ALLOCATION"
} Contact details of private individuals are redacted.