209.55.135.0/24 - ZSCALER (AS22616)
CIDR
209.55.135.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
New York
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.55.135.0/24 | AS22616 ZSCALER-SJC1 - ZSCALER, INC. | Valid | - | 2026-10-11 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.55.128.0/18 | AS22616 ZSCALER-SJC1 - ZSCALER, INC. | No ROA | - | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 209.55.135.0/24 | AS22616 | /24 | arin |
Transfer History
Registry transfers of 209.55.135.0/24, blocks inside it, or blocks containing it.
- 209.55.128.0/18Transfer ·
- 209.55.128.0/17M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 209.55.128.0/18 | Transfer | |||
| 209.55.128.0/17 | M&A |
Origin ASN
AS22616
ZSCALER-SJC1 - ZSCALER, INC.
Related Prefixes
Geolocation
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/209.55.135.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.55.135.0/24" | jq
External Links