HomeASN LookupAS21660

AS21660

🇺🇸

BAXALTA - Baxalta Incorporated90118181c28b5d312a11634a8928a823

ARINassigned
Announced Prefixes (BGP)
11total
11 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)2,560
Announced (BGP)4,352
IPv6 Addresses ⓘ
Allocated (RIR)1.2×10^24
Announced (BGP)0
Prefix Limit (IPv4)
50
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
1/16/2015

Announced Prefixes

(BGP)11
|
Prefix
RPKI
IRR
Last Seen
43.229.156.0/23
No ROA
RADB
5/17/2026
43.229.158.0/24
No ROA
RADB
5/17/2026
63.84.72.0/23
No ROA—5/17/2026
63.84.74.0/24
No ROA—5/17/2026
63.84.75.0/24
No ROA—5/17/2026
63.244.0.0/22
No ROA
RADB
5/17/2026
103.48.172.0/24
No ROA
RADB
5/17/2026
104.254.253.0/24
No ROA—5/17/2026
185.89.148.0/23
 Valid
RIPE
5/17/2026
185.89.150.0/24
 Valid
RIPE
5/17/2026
1–10 of 11
1 / 2

Allocated Prefixes

(RIR)4
Prefix
Country
RIR
Status
43.229.158.0/24🇸🇬 SGAPNICassigned
103.48.172.0/24🇸🇬 SGAPNICassigned
104.254.248.0/21🇺🇸 USARINallocated
2620:b5:4000::/48🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/21660

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

curl -s "https://api.ipctl.io/v1/asn/21660" | jq