204.51.128.0/17
🇺🇸CIDR
204.51.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇺🇸 United States
City
San Jose
RIR
ARIN
Status
allocated
Allocated
6/8/2009
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.51.128.0/17 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
Covering Prefix
14 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.51.128.0/19 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.192.0/19 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.240.0/20 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.176.0/20 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.160.0/21 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.228.0/22 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.172.0/22 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.236.0/22 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.226.0/23 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.168.0/23 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.232.0/23 | AS22205DATAPIPE-SEA - DataPipe, Inc. | No ROA | — | 6/1/2026 |
| 204.51.170.0/24 | AS19994RACKSPACE - Rackspace Hosting | No ROA | — | 6/1/2026 |
| 204.51.235.0/24 | AS27357RACKSPACE - Rackspace Hosting | No ROA | — | 6/1/2026 |
| 204.51.224.0/24 | AS27357RACKSPACE - Rackspace Hosting | No ROA | — | 6/1/2026 |
Origin ASN
AS22205
DATAPIPE-SEA - DataPipe, Inc.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/204.51.128.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.51.128.0/17" | jq
External Links