HomeASN LookupAS49

AS49

🇺🇸

US-NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOGY - National Institute of Standards and Technologyd5a025d296fe11c150ffe15ec2816481

ARINassigned
Announced Prefixes (BGP)
36total
29 IPv47 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)131,072
Announced (BGP)81,664
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)2.4×10^27
Prefix Limit (IPv4)
200
Prefix Limit (IPv6)
50
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
9/4/1985

Announced Prefixes

(BGP)36
|
Prefix
RPKI
IRR
Last Seen
129.6.0.0/21
 Valid
ARIN
5/26/2026
129.6.8.0/22
 Valid
ARIN
5/26/2026
129.6.12.0/23
 Valid
ARIN
5/26/2026
129.6.14.0/24
 Valid
ARIN
5/26/2026
129.6.15.0/24
 Valid
ARIN
5/26/2026
129.6.16.0/21
 Valid
ARIN
5/26/2026
129.6.24.0/22
 Valid
ARIN
5/26/2026
129.6.28.0/24
 Valid
ARIN
5/26/2026
129.6.29.0/24
 Valid
ARIN
5/26/2026
129.6.30.0/24
 Valid
ARIN
5/26/2026
1–10 of 36
1 / 4

Allocated Prefixes

(RIR)2
Prefix
Country
RIR
Status
129.6.0.0/16🇺🇸 USARINallocated
132.163.0.0/16🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/49

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

curl -s "https://api.ipctl.io/v1/asn/49" | jq