HomeASN LookupAS21

AS21

🇺🇸

RAND - The RAND Corporationbb0be7e8aa73043d89355c9efddd4427

ARINassigned
Announced Prefixes (BGP)
10total
10 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)67,328
Announced (BGP)2,560
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
100
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
7/30/1984

Announced Prefixes

(BGP)10
|
Prefix
RPKI
IRR
Last Seen
130.154.0.0/24
No ROA—5/25/2026
130.154.1.0/24
No ROA—5/25/2026
130.154.3.0/24
No ROA—5/25/2026
130.154.11.0/24
No ROA—5/25/2026
130.154.30.0/24
No ROA—5/25/2026
130.154.33.0/24
No ROA—5/25/2026
130.154.111.0/24
No ROA—5/25/2026
130.154.113.0/24
No ROA—5/25/2026
166.67.240.0/24
No ROA—5/25/2026
192.5.14.0/24
No ROA
RADB
5/25/2026

Allocated Prefixes

(RIR)8
Prefix
Country
RIR
Status
130.154.0.0/16🇺🇸 USARINallocated
192.5.14.0/24🇺🇸 USARINallocated
192.12.212.0/24🇺🇸 USARINallocated
192.12.213.0/24🇺🇸 USARINallocated
192.42.56.0/24🇺🇸 USARINallocated
192.42.57.0/24🇺🇸 USARINallocated
192.42.58.0/24🇺🇸 USARINallocated
192.42.59.0/24🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/21

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

curl -s "https://api.ipctl.io/v1/asn/21" | jq