104.255.56.0/21
🇺🇸CIDR
104.255.56.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Ashburn
RIR
ARIN
Status
allocated
Allocated
5/23/2018
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 104.255.56.0/21 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | RADB | 5/30/2026 |
Covering Prefix
6 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 104.255.56.0/24 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | — | 5/30/2026 |
| 104.255.57.0/24 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | — | 5/30/2026 |
| 104.255.58.0/24 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | — | 5/30/2026 |
| 104.255.59.0/24 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | — | 5/30/2026 |
| 104.255.60.0/24 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | — | 5/30/2026 |
| 104.255.61.0/24 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | — | 5/30/2026 |
Origin ASN
AS16509
AMAZON-02 - Amazon.com, Inc.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/104.255.56.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/104.255.56.0/21" | jq
External Links