Whois & RDAP Lookup
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RDAPRaw WHOIS response
# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # NetRange: 206.251.0.0 - 206.251.31.255 CIDR: 206.251.0.0/19 NetName: CTI-NET-2 NetHandle: NET-206-251-0-0-1 Parent: NET206 (NET-206-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Cumberland Technologies International (CTI) RegDate: 2005-11-04 Updated: 2025-01-31 Ref: https://rdap.arin.net/registry/ip/206.251.0.0 OrgName: Cumberland Technologies International OrgId: CTI Address: 5170 E Trindle RD City: Mechanicsburg StateProv: PA PostalCode: 17050 Country: US RegDate: 1995-03-24 Updated: 2024-12-19 Ref: https://rdap.arin.net/registry/entity/CTI OrgTechHandle: TFA-ARIN OrgTechName: Fantacone, Tom OrgTechPhone: +1-954-327-2111 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/TFA-ARIN OrgAbuseHandle: ABUSE387-ARIN OrgAbuseName: Abuse OrgAbusePhone: +1-717-975-9000 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE387-ARIN OrgTechHandle: TECHN84-ARIN OrgTechName: Technical OrgTechPhone: +1-717-975-9000 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/TECHN84-ARIN RTechHandle: PM681-ARIN RTechName: CTI Networks Project Managers, Patrick RTechPhone: +1-717-975-9000 RTechEmail: [email protected] RTechRef: https://rdap.arin.net/registry/entity/PM681-ARIN RAbuseHandle: ABUSE387-ARIN RAbuseName: Abuse RAbusePhone: +1-717-975-9000 RAbuseEmail: [email protected] RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE387-ARIN RNOCHandle: TECHN84-ARIN RNOCName: Technical RNOCPhone: +1-717-975-9000 RNOCEmail: [email protected] RNOCRef: https://rdap.arin.net/registry/entity/TECHN84-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # % Query time: 892 msec % WHEN: Sun Sep 27 03:32:29 UTC 2026
Raw RDAP JSON (registry) https://rdap.arin.net
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"length": 19,
"v4prefix": "206.251.0.0"
}
],
"endAddress": "206.251.31.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-19T09:35:04-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-08-25T16:38:22-04:00"
}
],
"handle": "ADMIN222-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ADMIN222-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
},
{
"href": "https://whois.arin.net/rest/poc/ADMIN222-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "5170 E Trindle RD\nMechanicsburg\nPA\n17050\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Admin"
],
[
"org",
{},
"text",
"CTI"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-717-975-9000;ext8773"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-26T20:19:12-04:00"
},
{
"eventAction": "registration",
"eventDate": "2003-08-25T16:38:22-04:00"
}
],
"handle": "ABUSE387-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE387-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE387-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "5170 E Trindle RD\nMechanicsburg\nPA\n17050\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Abuse"
],
[
"org",
{},
"text",
"CTI"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-717-975-9000"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-02T10:21:05-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-08-25T16:38:22-04:00"
}
],
"handle": "TECHN84-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/TECHN84-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
},
{
"href": "https://whois.arin.net/rest/poc/TECHN84-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "5170 E Trindle RD\nMechanicsburg\nPA\n17050\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Technical"
],
[
"org",
{},
"text",
"CTI"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-717-975-9000"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-02-08T08:45:37-05:00"
},
{
"eventAction": "registration",
"eventDate": "2002-11-20T11:37:44-05:00"
}
],
"handle": "TFA-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/TFA-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
},
{
"href": "https://whois.arin.net/rest/poc/TFA-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "P.O. Box 551149\nDavie\nFL\n33355\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Tom Fantacone"
],
[
"n",
{},
"text",
[
"Fantacone",
"Tom",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-954-327-2111;ext106"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-12-19T10:58:56-05:00"
},
{
"eventAction": "registration",
"eventDate": "1995-03-24T00:00:00-05:00"
}
],
"handle": "CTI",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CTI",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
},
{
"href": "https://whois.arin.net/rest/org/CTI",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Cumberland Technologies International"
],
[
"adr",
{
"label": "5170 E Trindle RD\nMechanicsburg\nPA\n17050\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-26T20:19:12-04:00"
},
{
"eventAction": "registration",
"eventDate": "2003-08-25T16:38:22-04:00"
}
],
"handle": "ABUSE387-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE387-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE387-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "5170 E Trindle RD\nMechanicsburg\nPA\n17050\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Abuse"
],
[
"org",
{},
"text",
"CTI"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-717-975-9000"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-07-23T11:42:03-04:00"
},
{
"eventAction": "registration",
"eventDate": "2001-02-14T22:57:55-05:00"
}
],
"handle": "PM681-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/PM681-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
},
{
"href": "https://whois.arin.net/rest/poc/PM681-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Please send spam/abuse to [email protected]"
],
"title": "Registration Comments"
},
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-07-23"
],
"title": "Unvalidated POC"
}
],
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "5170 E Trindle RD\nMechanicsburg\nPA\n17050\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Patrick CTI Networks Project Managers"
],
[
"n",
{},
"text",
[
"CTI Networks Project Managers",
"Patrick",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-717-975-9000"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+1-717-975-9000"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-02T10:21:05-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-08-25T16:38:22-04:00"
}
],
"handle": "TECHN84-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/TECHN84-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
},
{
"href": "https://whois.arin.net/rest/poc/TECHN84-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "5170 E Trindle RD\nMechanicsburg\nPA\n17050\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Technical"
],
[
"org",
{},
"text",
"CTI"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-717-975-9000"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-01-31T12:35:57-05:00"
},
{
"eventAction": "registration",
"eventDate": "2005-11-04T12:02:42-05:00"
}
],
"handle": "NET-206-251-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/206.251.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
},
{
"href": "https://whois.arin.net/rest/net/NET-206-251-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/206.251.24.0/21"
}
],
"name": "CTI-NET-2",
"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/206.251.24.0/21"
}
],
"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/206.251.24.0/21"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-206-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "206.251.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}Frequently asked questions
What is WHOIS?
WHOIS is a public directory that answers "who is responsible for this?" for domains, IP ranges and ASNs. It lists registration dates, the registrar, nameservers and contacts.
What is RDAP, and how does it differ?
RDAP is the modern replacement for WHOIS. It returns the same records in a structured, consistent format. We query RDAP first and fall back to classic WHOIS text when a registry has not adopted it yet.
What is the difference between a registrar and a registrant?
The registrar is the company you register and manage a domain through, such as xTom or GoDaddy. The registrant is the person or organization that actually holds the domain.
What are nameservers?
Nameservers answer DNS questions for a domain and decide which IP addresses the name resolves to. They also show which DNS provider the domain uses.
What is DNSSEC?
DNSSEC adds cryptographic signatures to DNS answers so they cannot be quietly altered in transit. "Signed" means the domain has it enabled, "unsigned" means it does not.
Why is the contact information redacted?
Privacy laws such as GDPR require registrars to hide most personal details in public records. The abuse contact is usually still shown, so a domain or network can be reported when something goes wrong.