Organization
RCN
RCN
Location
Chicago
Illinois, United States (US)
Hostname
166-88-72-0.ips.acedatacenter.com
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- Illinois
- City
- Chicago
- Continent
- North America
- Coordinates
- 41.8781, -87.6298 View on map ↗
Network Information
IP Range 166.88.72.0 – 166.88.72.255 CIDR 166.88.72.0/24 Network Name RCN Handle NET-166-88-72-0-1 Type ASSIGNMENT Parent Network NET-166-88-0-0-1 Organization RCN Organization ID C11663188 Address 650 College Road East, Princeton, NJ, 08540, United States Country United States (US) Registry ARIN Registered On Jul 29, 2026 Last Updated Jul 29, 2026 Status
active
ASN & Routing
Origin AS AS6079 AS Name RCN-AS - RCN, US Announced Prefix 166.88.72.0/24 AS Registry ARIN Prefix Country United States (US) Allocated 2012-10-26 RPKI Origin Valid (covered by a matching ROA)
Reverse DNS
PTR Record
Abuse Contact
Raw RDAP Response
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "166.88.72.0",
"length": 24
}
],
"endAddress": "166.88.72.255",
"entities": [
{
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-06T13:37:49-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-04-24T12:34:27-04:00"
}
],
"handle": "ABUSE8727-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE8727-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE8727-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "727 North 1550 East\nSte 400\nOrem\nUT\n84097\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Abuse"
],
[
"org",
{},
"text",
"Ace Data Centers"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-801-851-5540"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-20T13:04:56-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-09-23T13:18:39-04:00"
}
],
"handle": "LOWRY55-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/LOWRY55-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
},
{
"href": "https://whois.arin.net/rest/poc/LOWRY55-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-02-04T13:46:42-05:00"
},
{
"eventAction": "registration",
"eventDate": "2014-06-27T14:01:14-04:00"
}
],
"handle": "ACEAD-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ACEAD-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
},
{
"href": "https://whois.arin.net/rest/poc/ACEAD-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "727 North 1550 East\r\nSte 400\nOrem\nUT\n84097\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"ACE ADMIN"
],
[
"org",
{},
"text",
"Ace Data Centers"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-801-900-5673"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-06T15:04:25-04:00"
},
{
"eventAction": "registration",
"eventDate": "2020-03-27T16:05:30-04:00"
}
],
"handle": "ADCIL",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ADCIL",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
},
{
"href": "https://whois.arin.net/rest/org/ADCIL",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Ace Data Centers II, L.L.C."
],
[
"adr",
{
"label": "727 North 1550 East\nSuite 400\nOrem\nUT\n84097\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-29T00:51:36-04:00"
},
{
"eventAction": "registration",
"eventDate": "2026-07-29T00:51:36-04:00"
}
],
"handle": "C11663188",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/C11663188",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
},
{
"href": "https://whois.arin.net/rest/customer/C11663188",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"RCN"
],
[
"adr",
{
"label": "650 College Road East\nPrinceton\nNJ\n08540\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-29T00:51:40-04:00"
},
{
"eventAction": "registration",
"eventDate": "2026-07-29T00:51:40-04:00"
}
],
"handle": "NET-166-88-72-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/166.88.72.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-166-88-72-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
},
{
"href": "https://rdap.arin.net/registry/ip/166.88.0.0/16",
"rel": "up",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/166.88.72.0"
}
],
"name": "RCN",
"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/166.88.72.0"
}
],
"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/166.88.72.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-166-88-0-0-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "166.88.72.0",
"status": [
"active"
],
"type": "ASSIGNMENT"
} Contact details of private individuals are redacted.