AS11523
H. Lee Moffitt Cancer Center & Research Institute, Inc.
ARIN US active Announced
More ASNs in the United States → Organization
H. Lee Moffitt Cancer Center & Research Institute, Inc.
AS-HLEEM
Registered
May 22, 2007
19 years ago
IPv4 Prefixes
5
1,024 addresses
IPv6 Prefixes
0
BGP Neighbours
2
2 upstream/peer · 0 downstream
Registration
AS Number AS11523 AS Name AS-HLEEM Organization H. Lee Moffitt Cancer Center & Research Institute, Inc. Organization ID HLEEM Address 12902 Magnolia Dr, Tampa, FL, 33612-9497, United States Country United States (US) Registry ARIN Allocated May 22, 2007 Record Created May 22, 2007 Last Updated Feb 24, 2012 Status
active
WHOIS Server whois.arin.net AS Description AS-HLEEM - H. Lee Moffitt Cancer Center & Research Institute, Inc., US Remarks http://www.moffitt.org Abuse Email [email protected] Abuse Phone +1-813-745-5400 IPv4 Prefixes
5 prefixes · 1,024 addresses · 1 top-level Routing data as of 2026-10-16 00:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 206.81.164.0/22 | 206.81.164.0 – 206.81.167.255 | 1,024 |
| 206.81.164.0/24 | 206.81.164.0 – 206.81.164.255 | 256 |
| 206.81.165.0/24 | 206.81.165.0 – 206.81.165.255 | 256 |
| 206.81.166.0/24 | 206.81.166.0 – 206.81.166.255 | 256 |
| 206.81.167.0/24 | 206.81.167.0 – 206.81.167.255 | 256 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
2 unique neighbours · 2 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Upstream & peer side (2)
Raw RDAP Response
{
"endAutnum": 11523,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-03-12T14:52:53-04:00"
},
{
"eventAction": "registration",
"eventDate": "2024-03-12T14:52:53-04:00"
}
],
"handle": "TOKAR23-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/TOKAR23-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/11523"
},
{
"href": "https://whois.arin.net/rest/poc/TOKAR23-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/11523"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-03-12"
],
"title": "Unvalidated POC"
}
],
"roles": [
"abuse",
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "12902 Magnolia Drive\nTampa\nFL\n33612\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Tom Tokarczyk"
],
[
"n",
{},
"text",
[
"Tokarczyk",
"Tom",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-813-745-6774"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-13T10:46:58-04:00"
},
{
"eventAction": "registration",
"eventDate": "2006-10-05T00:42:40-04:00"
}
],
"handle": "INFOR35-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/INFOR35-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/11523"
},
{
"href": "https://whois.arin.net/rest/poc/INFOR35-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/11523"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"administrative",
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "12902 Magnolia Dr.\nTampa\nFL\n33612-9497\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Information Security"
],
[
"org",
{},
"text",
"Moffitt Cancer Center and Research Institute"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-813-745-5400"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-11-11T08:59:38-05:00"
},
{
"eventAction": "registration",
"eventDate": "2006-10-16T09:40:20-04:00"
}
],
"handle": "HLEEM",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HLEEM",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/11523"
},
{
"href": "https://whois.arin.net/rest/org/HLEEM",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/11523"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Addresses within this block are non-portable."
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"H. Lee Moffitt Cancer Center & Research Institute, Inc."
],
[
"adr",
{
"label": "12902 Magnolia Dr\nTampa\nFL\n33612-9497\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-13T10:46:58-04:00"
},
{
"eventAction": "registration",
"eventDate": "2006-10-05T00:42:40-04:00"
}
],
"handle": "INFOR35-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/INFOR35-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/11523"
},
{
"href": "https://whois.arin.net/rest/poc/INFOR35-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/11523"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "12902 Magnolia Dr.\nTampa\nFL\n33612-9497\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Information Security"
],
[
"org",
{},
"text",
"Moffitt Cancer Center and Research Institute"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-813-745-5400"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-02-24T09:44:34-05:00"
},
{
"eventAction": "registration",
"eventDate": "2007-05-22T16:04:44-04:00"
}
],
"handle": "AS11523",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/11523",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/11523"
},
{
"href": "https://whois.arin.net/rest/asn/AS11523",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/11523"
}
],
"name": "AS-HLEEM",
"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/11523"
}
],
"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/11523"
}
],
"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"
],
"remarks": [
{
"description": [
"http://www.moffitt.org"
],
"title": "Registration Comments"
}
],
"startAutnum": 11523,
"status": [
"active"
]
} Contact details of private individuals are redacted.