220.42.0.0/16 - ZSCALER (AS22616)
CIDR
220.42.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
San Jose
RIR
RIPE NCC
Status
allocated
Allocated
2002-04-12
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 220.42.0.0/16 | AS22616 ZSCALER-SJC1 - ZSCALER, INC. | Valid | Other IRR | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 220.42.0.0/16 | AS22616 | /24 | ripe |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS22616 | Other IRR | MAINT-AS53444 | 2026-03-27 |
Transfer History
Registry transfers of 220.42.0.0/16, blocks inside it, or blocks containing it.
- 220.42.0.0/15inter-RIRTransfer ·
- 220.42.0.0/16inter-RIRTransfer ·
- 220.42.0.0/15Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 220.42.0.0/15inter-RIR | ORG-ZSG1-RIPE | Transfer | ||
| 220.42.0.0/16inter-RIR | not published | Transfer | ||
| 220.42.0.0/15 | Transfer |
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 RIPE NCC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/220.42.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/220.42.0.0/16" | jq
External Links