209.133.0.0/17
🇺🇸CIDR
209.133.0.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇺🇸 United States
City
Atlanta
RIR
ARIN
Status
allocated
Allocated
9/19/1997
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.133.0.0/17 | AS6461ZAYO-6461 - Zayo Bandwidth | Valid | — | 5/31/2026 |
Covering Prefix
9 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.133.33.0/24 | AS13410MSTRARIN-1 - Microstrategy, Inc. | Valid | — | 5/31/2026 |
| 209.133.127.0/24 | AS15197CONCORD - Concord Technologies | Valid | — | 5/31/2026 |
| 209.133.102.0/24 | AS17025ZAYO-CUSTOMER-17025 - Zayo Bandwidth | Valid | — | 5/31/2026 |
| 209.133.100.0/24 | AS17025ZAYO-CUSTOMER-17025 - Zayo Bandwidth | Valid | — | 5/31/2026 |
| 209.133.71.0/24 | AS18888AS-ZILLOW - ZILLOW, INC. | Valid | — | 5/31/2026 |
| 209.133.97.0/24 | AS26420CAYAN-LLC - Global Payments Inc. | Valid | — | 5/31/2026 |
| 209.133.118.0/24 | AS27526ENDAI-NETWORKS-ASN - Endai Corporation | Valid | — | 5/31/2026 |
| 209.133.104.0/24 | AS393330IRI-BGP - Circana LLC | Valid | — | 5/31/2026 |
| 209.133.79.0/24 | AS394161TESLA - Tesla Motors, Inc. | Valid | — | 5/31/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 209.133.0.0/17 | AS6461 | /17 | arin |
Origin ASN
AS6461
ZAYO-6461 - Zayo Bandwidth
Geolocation
API
Open https://api.ipctl.io/v1/prefix/209.133.0.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.133.0.0/17" | jq
External Links