HomeASN LookupAS55

AS55

🇺🇸

UPENN - University of Pennsylvaniaf56754654451d015b98cc73faf82517c

ARINassigned
Announced Prefixes (BGP)
6total
5 IPv41 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)262,400
Announced (BGP)262,400
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)7.9×10^28
Prefix Limit (IPv4)
500
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
12/18/1985

Announced Prefixes

(BGP)6
|
Prefix
RPKI
IRR
Last Seen
128.91.0.0/16
 Valid
RADB
5/25/2026
130.91.0.0/16
 Valid
RADB
5/25/2026
158.130.0.0/16
 Valid
RADB
5/25/2026
165.123.0.0/16
 Valid
RADB
5/25/2026
192.84.2.0/24
 Valid
RADB
5/25/2026
2607:f470::/32
 Valid
RADB
5/25/2026

Allocated Prefixes

(RIR)5
Prefix
Country
RIR
Status
128.91.0.0/16🇺🇸 USARINallocated
130.91.0.0/16🇺🇸 USARINallocated
158.130.0.0/16🇺🇸 USARINallocated
165.123.0.0/16🇺🇸 USARINallocated
192.84.2.0/24🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/55

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

curl -s "https://api.ipctl.io/v1/asn/55" | jq