HomeASN LookupAS56

AS56

🇺🇸

DNIC-AS-00056 - United States Department of Defense (DoD)45fe880b68a8f2850ebdcfdc57b4556c

ARINassigned
Announced Prefixes (BGP)
934total
934 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)6.8M
Announced (BGP)8.1M
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
10,000
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
12/18/1985

Announced Prefixes

(BGP)938
|
Prefix
RPKI
IRR
Last Seen
129.48.0.0/16
No ROA—5/26/2026
129.51.3.0/24
No ROA—5/26/2026
129.51.5.0/24
No ROA—5/26/2026
129.51.100.0/24
No ROA—5/26/2026
129.52.0.0/16
No ROA—5/26/2026
129.53.0.0/16
No ROA—5/26/2026
129.54.0.0/16
No ROA—5/26/2026
129.54.48.0/20
No ROA—5/26/2026
129.54.64.0/21
No ROA—5/26/2026
129.54.80.0/20
No ROA—5/26/2026
1–10 of 938
1 / 94

Allocated Prefixes

(RIR)107
Prefix
Country
RIR
Status
129.48.0.0/16🇺🇸 USARINallocated
129.52.0.0/16🇺🇸 USARINallocated
129.53.0.0/16🇺🇸 USARINallocated
129.54.0.0/16🇺🇸 USARINallocated
129.61.0.0/16🇺🇸 USARINallocated
129.141.0.0/16🇺🇸 USARINallocated
129.198.0.0/16🇺🇸 USARINallocated
129.238.0.0/16🇺🇸 USARINallocated
130.53.0.0/16🇺🇸 USARINallocated
131.3.0.0/16🇺🇸 USARINallocated
1–10 of 107
1 / 11
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/56

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

curl -s "https://api.ipctl.io/v1/asn/56" | jq