HomeASN LookupAS11951

AS11951

🇺🇸

MCSP - Medical Computer Systems4e3b8339bdb1f7dece5358eec97cbe13

ARINassigned
Announced Prefixes (BGP)
11total
11 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)29,184
Announced (BGP)38,912
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
50
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
2/12/1999

Announced Prefixes

(BGP)11
|
Prefix
RPKI
IRR
Last Seen
66.186.128.0/20
No ROA
RADB
5/25/2026
66.186.129.0/24
No ROA—5/25/2026
204.152.42.0/23
No ROA
RADB
5/25/2026
204.152.42.0/24
No ROA—5/25/2026
204.152.43.0/24
No ROA—5/25/2026
205.147.160.0/19
No ROA
RADB
5/25/2026
207.152.128.0/18
No ROA
RADB
5/25/2026
207.152.134.0/24
No ROA—5/25/2026
207.152.135.0/24
No ROA—5/25/2026
209.50.192.0/19
No ROA
RADB
5/25/2026
1–10 of 11
1 / 2

Allocated Prefixes

(RIR)4
Prefix
Country
RIR
Status
66.186.128.0/20🇺🇸 USARINallocated
204.152.42.0/23🇺🇸 USARINallocated
207.152.128.0/18🇺🇸 USARINallocated
209.50.192.0/19🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/11951

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/11951" | jq