HomeASN LookupAS12156

AS12156

🇺🇸

AURORA-COLORADO - City of Aurora Coloradodeace2e7105d9fe85c7debb99f65a637

ARINassigned
Announced Prefixes (BGP)
6total
6 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)1,536
Announced (BGP)1,792
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
20
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
1/24/2018

Announced Prefixes

(BGP)6
|
Prefix
RPKI
IRR
Last Seen
192.78.99.0/24
No ROA
RADB
5/25/2026
198.148.209.0/24
No ROA
RADB
5/25/2026
198.199.187.0/24
No ROA
RADB
5/25/2026
198.199.188.0/24
No ROA
RADB
5/25/2026
205.167.144.0/23
No ROA
RADB
5/25/2026
205.167.144.0/24
No ROA—5/25/2026

Allocated Prefixes

(RIR)5
Prefix
Country
RIR
Status
192.78.99.0/24🇺🇸 USARINallocated
198.148.209.0/24🇺🇸 USARINallocated
198.199.187.0/24🇺🇸 USARINallocated
198.199.188.0/24🇺🇸 USARINallocated
205.167.144.0/23🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/12156

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

curl -s "https://api.ipctl.io/v1/asn/12156" | jq