Whois & RDAP Lookup
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RDAPIP Range4.0.0.0 - 4.127.255.255
HandleNET-4-0-0-0-1
NameLVLT-ORG-4-8
TypeDIRECT ALLOCATION
HolderLevel 3 Parent, LLC
Registered1992-12-01 05:00 UTC
Updated2019-07-17 17:22 UTC
RegistrantLevel 3 Parent, LLC
Address100 CenturyLink Drive, Monroe, LA, 71203, United States
Admin ContactADMIN POC LVLT
Email[email protected]
Phone+1-877-453-8353
Address1025 Eldorado Blvd., Broomfield, CO, 80021, United States
Tech ContactADMIN POC LVLT
Email[email protected]
Phone+1-877-453-8353
Address1025 Eldorado Blvd., Broomfield, CO, 80021, United States
Abuse Contact[email protected]
Abuse Phone+1-877-453-8353
Statusactive
Registry RDAPhttps://rdap.arin.net
Raw 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: 4.0.0.0 - 4.127.255.255 CIDR: 4.0.0.0/9 NetName: LVLT-ORG-4-8 NetHandle: NET-4-0-0-0-1 Parent: NET4 (NET-4-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Level 3 Parent, LLC (LPL-141) RegDate: 1992-12-01 Updated: 2019-07-17 Ref: https://rdap.arin.net/registry/ip/4.0.0.0 OrgName: Level 3 Parent, LLC OrgId: LPL-141 Address: 100 CenturyLink Drive City: Monroe StateProv: LA PostalCode: 71203 Country: US RegDate: 2018-02-06 Updated: 2026-04-22 Comment: USAGE OF IP SPACE MUST COMPLY WITH OUR ACCEPTABLE USE POLICY: Comment: https://www.lumen.com/en-us/about/legal/acceptable-use-policy.html Comment: Comment: ADDRESSES COVERED BY THIS ORG-ID ARE NON-PORTABLE ANY ISP ANNOUNCING OR TRANSITING PORTIONS WITHIN OUR RANGES SHOULD NOT RELY ON PRESENTED LOA'S OR OLD WHOIS UNLESS THOSE RANGES ARE ALSO ACTIVELY DIRECTLY ANNOUNCED TO A LUMEN ASN. WITH ALL LOA'S THESE CONDITIONS APPLY: Comment: Comment: 1. You are permitted to route the Lumen IP prefixes listed via Public BGP to your alternate ISP from the designated ASN. Any other ASN originating the prefix listed is forbidden. Comment: 2. The Lumen IP prefixes listed can be routed via Public BGP to your alternate ISP as long as you remain an active customer with Lumen and continue to route the prefixes over at least one Lumen Internet circuit without significant traffic engineering. Comment: 3. Should your Internet services with Lumen be discontinued, Lumen reserves the right to have your alternate ISP terminate the routing of the Lumen IP prefixes without advanced notification, should you fail to do so. Comment: 4. All IP Addresses assigned or allocated by Lumen to an end-user (customer or ISP) shall be considered non-portable and will be reclaimed by Lumen upon service termination. Comment: 5. Lumen reserves the right to conduct audits to ensure the LOA conditions are being met. Comment: 6. Usage of IP space must comply with our AUP https://www.lumen.com/en-us/about/legal/acceptable-use-policy.html Comment: Comment: Our looking glass is located at: https://lookingglass.centurylink.com/ Comment: Comment: For subpoena or court order please fax 844.254.5800 or refer to our Trust & Safety page: Comment: https://www.lumen.com/en-us/about/legal/trust-center/trust-and-safety.html Comment: Comment: For abuse issues, please email [email protected] Comment: All abuse reports MUST include: Comment: * src IP Comment: * dest IP (your IP) Comment: * dest port Comment: * Accurate date/timestamp and timezone of activity Comment: * Intensity/frequency (short log extracts) Comment: * Your contact details (phone and email) Comment: Without these we will be unable to identify the correct owner of the IP address at that point in time. Ref: https://rdap.arin.net/registry/entity/LPL-141 OrgRoutingHandle: RPKIR-ARIN OrgRoutingName: RPKI-ROA OrgRoutingPhone: +1-877-886-6515 OrgRoutingEmail: [email protected] OrgRoutingRef: https://rdap.arin.net/registry/entity/RPKIR-ARIN OrgAbuseHandle: LAC56-ARIN OrgAbuseName: L3 Abuse Contact OrgAbusePhone: +1-877-453-8353 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/LAC56-ARIN OrgTechHandle: APL7-ARIN OrgTechName: ADMIN POC LVLT OrgTechPhone: +1-877-453-8353 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/APL7-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: 534 msec % WHEN: Wed Jul 29 06:39:44 UTC 2026
Raw RDAP JSON (registry) https://rdap.arin.net
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"length": 9,
"v4prefix": "4.0.0.0"
}
],
"endAddress": "4.127.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-29T18:50:52-05:00"
},
{
"eventAction": "registration",
"eventDate": "2021-01-14T16:49:19-05:00"
}
],
"handle": "LAC56-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/LAC56-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/4.2.0.0/18"
},
{
"href": "https://whois.arin.net/rest/poc/LAC56-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/4.2.0.0/18"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "100 CenturyLink Drive\nMonroe\nLA\n71203\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"L3 Abuse Contact"
],
[
"org",
{},
"text",
"L3 Abuse Contact"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-877-453-8353"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-05T14:26:44-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-01-28T16:00:44-05:00"
}
],
"handle": "APL7-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/APL7-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/4.2.0.0/18"
},
{
"href": "https://whois.arin.net/rest/poc/APL7-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/4.2.0.0/18"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE ANY ISP ANNOUNCING OR TRANSITING PORTIONS WITHIN OUR RANGES SHOULD NOT RELY ON PRESENTED LOA'S UNLESS THOSE RANGES ARE ALSO ANNOUNCED TO A LUMEN ASN. ",
"",
"Our looking glass is located at: https://lookingglass.centurylink.com/",
"",
"For subpoena or court order please fax 844.254.5800 or refer to our Trust \u0026 Safety page:",
"https://www.lumen.com/en-us/about/legal/trust-center/trust-and-safety.html",
"",
"For abuse issues, please email [email protected]",
"All abuse reports MUST include: ",
"* src IP ",
"* dest IP (your IP) ",
"* dest port ",
"* Accurate date/timestamp and timezone of activity ",
"* Intensity/frequency (short log extracts) ",
"* Your contact details (phone and email) ",
"Without these we will be unable to identify the correct owner of the IP address at that point in time. "
],
"title": "Registration Comments"
}
],
"roles": [
"administrative",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1025 Eldorado Blvd.\nBroomfield\nCO\n80021\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"ADMIN POC LVLT"
],
[
"org",
{},
"text",
"ADMIN POC LVLT"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-877-453-8353"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-22T11:07:37-04:00"
},
{
"eventAction": "registration",
"eventDate": "2024-06-17T21:51:42-04:00"
}
],
"handle": "RPKIR-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/RPKIR-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/4.2.0.0/18"
},
{
"href": "https://whois.arin.net/rest/poc/RPKIR-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/4.2.0.0/18"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"For creating ROKI ROA's"
],
"title": "Registration Comments"
}
],
"roles": [
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "100 CENTURYLINK DR\n\nMonroe\nLA\n71201\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"RPKI-ROA"
],
[
"org",
{},
"text",
"RPKI-ROA"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-877-886-6515"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-04-22T11:04:05-04:00"
},
{
"eventAction": "registration",
"eventDate": "2018-02-06T12:45:14-05:00"
}
],
"handle": "LPL-141",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/LPL-141",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/4.2.0.0/18"
},
{
"href": "https://whois.arin.net/rest/org/LPL-141",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/4.2.0.0/18"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"USAGE OF IP SPACE MUST COMPLY WITH OUR ACCEPTABLE USE POLICY:",
"https://www.lumen.com/en-us/about/legal/acceptable-use-policy.html",
"",
"ADDRESSES COVERED BY THIS ORG-ID ARE NON-PORTABLE ANY ISP ANNOUNCING OR TRANSITING PORTIONS WITHIN OUR RANGES SHOULD NOT RELY ON PRESENTED LOA'S OR OLD WHOIS UNLESS THOSE RANGES ARE ALSO ACTIVELY DIRECTLY ANNOUNCED TO A LUMEN ASN. WITH ALL LOA'S THESE CONDITIONS APPLY:",
"",
"1. You are permitted to route the Lumen IP prefixes listed via Public BGP to your alternate ISP from the designated ASN. Any other ASN originating the prefix listed is forbidden.",
"2. The Lumen IP prefixes listed can be routed via Public BGP to your alternate ISP as long as you remain an active customer with Lumen and continue to route the prefixes over at least one Lumen Internet circuit without significant traffic engineering.",
"3. Should your Internet services with Lumen be discontinued, Lumen reserves the right to have your alternate ISP terminate the routing of the Lumen IP prefixes without advanced notification, should you fail to do so.",
"4. All IP Addresses assigned or allocated by Lumen to an end-user (customer or ISP) shall be considered non-portable and will be reclaimed by Lumen upon service termination.",
"5. Lumen reserves the right to conduct audits to ensure the LOA conditions are being met.",
"6. Usage of IP space must comply with our AUP https://www.lumen.com/en-us/about/legal/acceptable-use-policy.html",
"",
"Our looking glass is located at: https://lookingglass.centurylink.com/",
"",
"For subpoena or court order please fax 844.254.5800 or refer to our Trust \u0026 Safety page:",
"https://www.lumen.com/en-us/about/legal/trust-center/trust-and-safety.html",
"",
"For abuse issues, please email [email protected]",
"All abuse reports MUST include:",
"* src IP",
"* dest IP (your IP)",
"* dest port",
"* Accurate date/timestamp and timezone of activity",
"* Intensity/frequency (short log extracts)",
"* Your contact details (phone and email)",
"Without these we will be unable to identify the correct owner of the IP address at that point in time."
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Level 3 Parent, LLC"
],
[
"adr",
{
"label": "100 CenturyLink Drive\nMonroe\nLA\n71203\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2019-07-17T13:22:14-04:00"
},
{
"eventAction": "registration",
"eventDate": "1992-12-01T00:00:00-05:00"
}
],
"handle": "NET-4-0-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/4.0.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/4.2.0.0/18"
},
{
"href": "https://whois.arin.net/rest/net/NET-4-0-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/4.2.0.0/18"
}
],
"name": "LVLT-ORG-4-8",
"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/4.2.0.0/18"
}
],
"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/4.2.0.0/18"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-4-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "4.0.0.0",
"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.