AS19878
MedImpact Healthcare Systems, Inc.
ARIN US active Announced
More ASNs in the United States → Organization
MedImpact Healthcare Systems, Inc.
MEDIMPACT
Registered
Feb 26, 2001
25 years ago
IPv4 Prefixes
8
2,560 addresses
IPv6 Prefixes
0
BGP Neighbours
4
4 upstream/peer · 0 downstream
Registration
AS Number AS19878 AS Name MEDIMPACT Organization MedImpact Healthcare Systems, Inc. Organization ID MEDIMP Address 10181 Scripps Gateway Court, San Diego, CA, 92131, United States Country United States (US) Registry ARIN Allocated Feb 26, 2001 Record Created Feb 26, 2001 Last Updated Sep 02, 2025 Status
active
WHOIS Server whois.arin.net AS Description MEDIMPACT - MedImpact Healthcare Systems, Inc., US Remarks INS6-ARIN Abuse Email [email protected] Abuse Phone +1-858-790-6176 IPv4 Prefixes
8 prefixes · 2,560 addresses Routing data as of 2026-10-09 00:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 198.54.236.0/23 | 198.54.236.0 – 198.54.237.255 | 512 |
| 198.54.238.0/24 | 198.54.238.0 – 198.54.238.255 | 256 |
| 198.54.239.0/24 | 198.54.239.0 – 198.54.239.255 | 256 |
| 208.91.224.0/24 | 208.91.224.0 – 208.91.224.255 | 256 |
| 208.91.225.0/24 | 208.91.225.0 – 208.91.225.255 | 256 |
| 208.91.228.0/24 | 208.91.228.0 – 208.91.228.255 | 256 |
| 208.91.229.0/24 | 208.91.229.0 – 208.91.229.255 | 256 |
| 208.91.230.0/23 | 208.91.230.0 – 208.91.231.255 | 512 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
4 unique neighbours · 4 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 (4)
Raw RDAP Response
{
"endAutnum": 19878,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-02-29T18:49:21-05:00"
},
{
"eventAction": "registration",
"eventDate": "2005-02-18T17:00:07-05:00"
}
],
"handle": "INS6-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/INS6-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/19878"
},
{
"href": "https://whois.arin.net/rest/poc/INS6-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/19878"
}
],
"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 2025-02-28"
],
"title": "Unvalidated POC"
}
],
"roles": [
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],
"vcardArray": [
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[
[
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{},
"text",
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],
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},
"text",
[
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]
],
[
"fn",
{},
"text",
"IT Networks Systems"
],
[
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{},
"text",
"MedImpact Healthcare Systems, Inc."
],
[
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{},
"text",
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],
[
"email",
{},
"text",
"[email protected]"
],
[
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{
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},
"text",
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]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-05T16:27:58-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-09-05T16:27:58-04:00"
}
],
"handle": "INE33-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/INE33-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/19878"
},
{
"href": "https://whois.arin.net/rest/poc/INE33-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/19878"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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],
"status": [
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"vcardArray": [
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[
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},
"text",
[
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[
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[
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[
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"[email protected]"
],
[
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]
},
"text",
"+1-858-790-6176"
],
[
"tel",
{
"type": [
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]
},
"text",
"+1-858-333-2954"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-16T10:02:20-04:00"
},
{
"eventAction": "registration",
"eventDate": "1994-04-11T00:00:00-04:00"
}
],
"handle": "MEDIMP",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MEDIMP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/19878"
},
{
"href": "https://whois.arin.net/rest/org/MEDIMP",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/19878"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"MedImpact Healthcare Systems, Inc."
],
[
"adr",
{
"label": "10181 Scripps Gateway Court\nSan Diego\nCA\n92131\nUnited States"
},
"text",
[
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]
],
[
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]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-02-29T18:49:21-05:00"
},
{
"eventAction": "registration",
"eventDate": "2005-02-18T17:00:07-05:00"
}
],
"handle": "INS6-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/INS6-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/19878"
},
{
"href": "https://whois.arin.net/rest/poc/INS6-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/19878"
}
],
"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 2025-02-28"
],
"title": "Unvalidated POC"
}
],
"roles": [
"abuse",
"noc",
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "10181 Scripps Gateway Ct.\nSan Diego\nCA\n92131\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"IT Networks Systems"
],
[
"org",
{},
"text",
"MedImpact Healthcare Systems, Inc."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
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"voice"
]
},
"text",
"+1-858-790-6176"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-02T14:28:49-04:00"
},
{
"eventAction": "registration",
"eventDate": "2001-02-26T00:00:00-05:00"
}
],
"handle": "AS19878",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/19878",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/19878"
},
{
"href": "https://whois.arin.net/rest/asn/AS19878",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/19878"
}
],
"name": "MEDIMPACT",
"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/19878"
}
],
"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/19878"
}
],
"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": [
"INS6-ARIN"
],
"title": "Registration Comments"
}
],
"startAutnum": 19878,
"status": [
"active"
]
} Contact details of private individuals are redacted.