AS21664 AMZN-BYOASN - Amazon.com, Inc.
🇺🇸ARINassignedASPA Published
Announced Prefixes (BGP)
11total
3 IPv48 IPv6
IPv4 Addresses
Allocated (RIR)256
Announced (BGP)768
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)9.6×10²⁴
Routing hygiene
Score 14/100 · Low riskRPKI ROA coverage
100%
no RPKI invalid prefixes
IRR route objects
71.4%
no origin mismatches
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
1
diversity 0/100
- Only one upstream seen in the AS paths of its routes
- 29% of announced prefixes (2 of 7) have no IRR route object for this ASN
Based on 7 announced prefixes, updated daily (2026-10-24). How the score works · RPKI explained
Announced Prefixes
(BGP)8|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | ARINOther IRR | 2026-10-25 | |
| Valid | Other IRR | 2026-10-25 | |
| Valid | Other IRR | 2026-10-25 | |
| Valid | - | 2026-10-25 | |
| Valid | Other IRR | 2026-10-25 | |
| Valid | Other IRR | 2026-10-25 | |
| Valid | Other IRR | 2026-10-25 | |
| Valid | - | 2026-10-25 |
Allocated Prefixes
(RIR)1Prefix | Country | RIR | Status |
|---|---|---|---|
| 192.43.184.0/24 | 🇺🇸 US | ARIN | allocated |
All 8 announced prefixes of AS21664 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS21664 hands its own prefixes to: transit providers, or peers at an exchange.
- AS16509Amazon.Com8
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- How to run an ASPA checkVerify the upstream providers listed above
- IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/21664Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/21664" | jq