HomeASN LookupAS43

AS43

🇺🇸

BNL-AS - Brookhaven National Laboratory2d008eb98b45a1106c9dd6f141ac67a3

ARINassignedASPA Published
Announced Prefixes (BGP)
10total
7 IPv43 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)66,560
Announced (BGP)67,328
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)3.9×10^25
Prefix Limit (IPv4)
100
Prefix Limit (IPv6)
10
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
4/11/1985

Announced Prefixes

(BGP)10
|
Prefix
RPKI
IRR
Last Seen
130.199.0.0/16
No ROA
RADB
9/10/2026
130.199.48.0/23
No ROA—9/10/2026
130.199.185.0/24
No ROA—9/10/2026
192.12.15.0/24
No ROA
RADB
9/10/2026
192.33.128.0/24
No ROA
RADB
9/10/2026
192.153.161.0/24
No ROA
RADB
9/10/2026
192.203.218.0/24
No ROA
RADB
9/10/2026
2620:0:210::/48
No ROA
RADB
9/10/2026
2620:10a::/44
No ROA
RADB
9/10/2026
2620:12f:f000::/44
 Valid
ARINRADB
9/10/2026

Allocated Prefixes

(RIR)5
Prefix
Country
RIR
Status
130.199.0.0/16🇺🇸 USARINallocated
192.12.15.0/24🇺🇸 USARINallocated
192.33.128.0/24🇺🇸 USARINallocated
192.153.161.0/24🇺🇸 USARINallocated
192.203.218.0/24🇺🇸 USARINallocated

Upstream Providers(1)

ASNName
AS293🇺🇸ESNET - ESnet
ASPA
Published1 upstream, 0 downstreams
Authorized Upstream Providers
AS293
Expires Sep 13, 2026
View full ASPA details →
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/43

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

curl -s "https://api.ipctl.io/v1/asn/43" | jq