170.133.128.0/18 - BGP Prefix
IPv4ARINallocated RPKI Valid
CIDR
170.133.128.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
๐บ๐ธ United States
City
San Jose (Tasman and Zanker)
RIR
ARIN
Status
allocated
Allocated
2019-05-01
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
Swipe sideways to see all columns โ
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below. | ||||
More-Specific Announcements
7 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 170.133.128.0/19 | AS13445 WEBEX - Cisco Webex LLC | Valid | - | 2026-10-11 |
| 170.133.160.0/20 | AS13445 WEBEX - Cisco Webex LLC | Valid | - | 2026-10-11 |
| 170.133.176.0/23 | AS13445 WEBEX - Cisco Webex LLC | Valid | - | 2026-10-11 |
| 170.133.178.0/23 | AS13445 WEBEX - Cisco Webex LLC | Valid | - | 2026-10-11 |
| 170.133.180.0/22 | AS13445 WEBEX - Cisco Webex LLC | Valid | - | 2026-10-11 |
| 170.133.184.0/22 | AS13445 WEBEX - Cisco Webex LLC | Valid | - | 2026-10-11 |
| 170.133.188.0/22 | AS13445 WEBEX - Cisco Webex LLC | Valid | - | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 170.133.128.0/18 | AS13445 | /24 | arin |
Transfer History
Registry transfers of 170.133.128.0/18, blocks inside it, or blocks containing it.
- 170.133.128.0/18Transfer ยท
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 170.133.128.0/18 | Weatherford International, LLC | Cisco Webex LLC | Transfer |
Geolocation
Country๐บ๐ธUnited StatesUS
RegionCalifornia
CitySan Jose (Tasman and Zanker)
Coordinates37.4084, -121.9540 โ
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/170.133.128.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/170.133.128.0/18" | jq
External Links