209.55.128.0/18 - ZSCALER (AS22616)
CIDR
209.55.128.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇳🇴 Norway
City
Oslo
RIR
ARIN
Status
allocated
Allocated
2021-09-21
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.55.128.0/18 | AS22616 ZSCALER-SJC1 - ZSCALER, INC. | No ROA | Other IRR | 2026-10-12 |
More-Specific Announcements
63 more-specific announcementsIRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS22616 | Other IRR | MAINT-AS53444 | 2023-11-13 |
Transfer History
Registry transfers of 209.55.128.0/18, blocks inside it, or blocks containing it.
- 209.55.128.0/18Transfer ·
- 209.55.128.0/17M&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/209.55.128.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.55.128.0/18" | jq
External Links