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Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
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AS46519
LMI - Lantheus Medical Imaging, Inc. Announcing routesAS nameLMI
OrganisationLantheus Medical Imaging, Inc.
Registry (RIR)ARIN
HandleAS46519
RangeAS46519
Registered09 Oct 2008
Last changed13 Feb 2018
Abuse contact[email protected]
2IPv4 prefixes
0IPv6 prefixes
2Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS7015 | COMCAST-7015 - Comcast Cable Communications, LLC | 261 |
| AS46887 | CROWNCASTLE-AS46887 - Crown Castle Fiber LLC | 26 |
Downstreams
None seen.
IPv4 prefixes (2)
RPKI-validate all prefixes of AS46519
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | Lantheus Medical Imaging, Inc. | LANTH | 331 Treble Cove Rd, Billerica, MA, 01862, United States | |
| technical, administrative, abuse | Network Admin | NETWO10199-ARIN | [email protected], +1-800-362-2668 | 331 Treble Cove Road, North Billerica, MA, 01862, United States |
Raw registry response
{
"endAutnum": 46519,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-10-13T14:39:04-04:00"
},
{
"eventAction": "registration",
"eventDate": "2024-10-02T10:00:17-04:00"
}
],
"handle": "NETWO10199-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NETWO10199-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/46519"
},
{
"href": "https://whois.arin.net/rest/poc/NETWO10199-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/46519"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"administrative",
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "331 Treble Cove Road\nNorth Billerica\nMA\n01862\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Network Admin"
],
[
"org",
[],
"text",
"Lantheus"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-800-362-2668"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-03-05T13:22:06-05:00"
},
{
"eventAction": "registration",
"eventDate": "2008-08-25T09:48:55-04:00"
}
],
"handle": "LANTH",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/LANTH",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/46519"
},
{
"href": "https://whois.arin.net/rest/org/LANTH",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/46519"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Lantheus Medical Imaging, Inc."
],
[
"adr",
{
"label": "331 Treble Cove Rd\nBillerica\nMA\n01862\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2018-02-12T15:11:03-05:00"
},
{
"eventAction": "registration",
"eventDate": "2008-10-08T14:56:25-04:00"
}
],
"handle": "AS46519",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/46519",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/46519"
},
{
"href": "https://whois.arin.net/rest/asn/AS46519",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/46519"
}
],
"name": "LMI",
"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/46519"
}
],
"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/46519"
}
],
"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": 46519,
"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.
