HomeASN LookupAS63

AS63

🇺🇸

LL-MI - Massachusetts Institute of Technology9b41255c6e4fad220dd844e0bb77f4bd

ARINassigned
Announced Prefixes (BGP)
6total
6 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)70,656
Announced (BGP)67,840
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
100
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
2/24/1986

Announced Prefixes

(BGP)6
|
Prefix
RPKI
IRR
Last Seen
129.55.0.0/16
No ROA
RADB
5/25/2026
129.55.201.0/24
No ROA
RADB
5/25/2026
192.5.136.0/22
No ROA
RADB
5/25/2026
192.5.140.0/23
No ROA
RADB
5/25/2026
192.26.149.0/24
No ROA
RADB
5/25/2026
192.26.150.0/24
No ROA
RADB
5/25/2026

Allocated Prefixes

(RIR)17
Prefix
Country
RIR
Status
129.55.0.0/16🇺🇸 USARINallocated
192.5.135.0/24🇺🇸 USARINallocated
192.5.136.0/22🇺🇸 USARINallocated
192.5.140.0/23🇺🇸 USARINallocated
192.12.127.0/24🇺🇸 USARINallocated
192.12.252.0/24🇺🇸 USARINallocated
192.12.253.0/24🇺🇸 USARINallocated
192.12.254.0/24🇺🇸 USARINallocated
192.12.255.0/24🇺🇸 USARINallocated
192.16.181.0/24🇺🇸 USARINallocated
1–10 of 17
1 / 2
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/63

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

curl -s "https://api.ipctl.io/v1/asn/63" | jq