HomeASN LookupAS4901

AS4901

🇺🇸

CAAREN - The George Washington Universitye3e83960063fb0242b6b3090cefbd1d6

ARINassignedASPA Published
Announced Prefixes (BGP)
2total
1 IPv41 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)1,024
Announced (BGP)1,024
IPv6 Addresses ⓘ
Allocated (RIR)1.9×10^25
Announced (BGP)1.9×10^25
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
9/30/2013

Announced Prefixes

(BGP)2
|
Prefix
RPKI
IRR
Last Seen
162.250.136.0/22
 Valid
ARIN
5/25/2026
2620:118:5000::/44
 Valid
ARIN
5/25/2026

Allocated Prefixes

(RIR)2
Prefix
Country
RIR
Status
162.250.136.0/22🇺🇸 USARINallocated
2620:118:5000::/44🇺🇸 USARINallocated

Upstream Providers(4)

ASNName
AS6079🇺🇸RCN-AS - RCN
AS10886🇺🇸MAX-GIGAPOP - University of Maryland
AS11164🇺🇸INTERNET2-I2PX - Internet2
AS11537🇺🇸INTERNET2-RESEARCH-EDU - Internet2
ASPA
Published4 upstreams, 0 downstreams
Authorized Upstream Providers
AS6079AS10886AS11164AS11537
Expires Jun 2, 2026
View full ASPA details →
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/4901

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

curl -s "https://api.ipctl.io/v1/asn/4901" | jq