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Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
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AS1
LVLT-1 - Level 3 Parent, LLC Announcing routesAS nameLVLT-1
OrganisationLevel 3 Parent, LLC
Registry (RIR)ARIN
HandleAS1
RangeAS1
Registered20 Sep 2001
Last changed19 Jun 2024
Abuse contact[email protected]
7IPv4 prefixes
0IPv6 prefixes
6Upstreams
1Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS29132 | IMAGEWORLD-AS Easylinehost Finland Oy | 257 |
| AS7046 | RFC2270-UUNET-CUSTOMER - Verizon Business | 255 |
| AS263309 | AS263309 - LaraNet Telecomunicacoes e Servicos EIRALI | 253 |
| AS262544 | AS262544 - RazaoInfo Internet Ltda | 48 |
| AS264773 | AS264773 - GOZFLY S.A. | 33 |
| AS396455 | CMM-CMH - CoverMyMeds LLC | 1 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS54043 | GOZFLY-LLC - GOZFLY LLC | 33 |
IPv4 prefixes (7)
RPKI-validate all prefixes of AS1
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | Level 3 Parent, LLC | LPL-141 | 100 CenturyLink Drive, Monroe, LA, 71203, United States | |
| abuse | L3 Abuse Contact | LAC56-ARIN | [email protected], +1-877-453-8353 | 100 CenturyLink Drive, Monroe, LA, 71203, United States |
| administrative, technical | ADMIN POC LVLT | APL7-ARIN | [email protected], [email protected], +1-877-453-8353 | 1025 Eldorado Blvd., Broomfield, CO, 80021, United States |
| routing | RPKI-ROA | RPKIR-ARIN | [email protected], +1-877-886-6515 | 100 CENTURYLINK DR, , Monroe, LA, 71201, United States |
Raw registry response
{
"endAutnum": 1,
"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/autnum/1"
},
{
"href": "https://whois.arin.net/rest/poc/LAC56-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/1"
}
],
"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",
"Level 3 Parent, LLC"
],
[
"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/autnum/1"
},
{
"href": "https://whois.arin.net/rest/poc/APL7-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/1"
}
],
"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 & 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",
"Level 3 Communications - IP Addressing"
],
[
"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/autnum/1"
},
{
"href": "https://whois.arin.net/rest/poc/RPKIR-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/1"
}
],
"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",
"Lumen"
],
[
"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/autnum/1"
},
{
"href": "https://whois.arin.net/rest/org/LPL-141",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/1"
}
],
"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 & 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": "2024-06-18T15:47:14-04:00"
},
{
"eventAction": "registration",
"eventDate": "2001-09-20T00:00:00-04:00"
}
],
"handle": "AS1",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/1",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/1"
},
{
"href": "https://whois.arin.net/rest/asn/AS1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/1"
}
],
"name": "LVLT-1",
"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/autnum/1"
}
],
"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/autnum/1"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 1,
"status": [
"active"
]
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.