136.121.36.0/22 - Google (AS19527)
CIDR
136.121.36.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇺🇸 United States
City
Chicago
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 136.121.36.0/22 | AS19527 GOOGLE-2 - Google LLC | Valid | Other IRR | 2026-10-12 |
More-Specific Announcements
1 more-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 136.121.36.0/24 | AS19527 GOOGLE-2 - Google LLC | Valid | - | 2026-10-12 |
RPKI ROAs
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS19527 | Other IRR | MAINT-AS15169 | 2026-04-07 |
Transfer History
Registry transfers of 136.121.36.0/22, blocks inside it, or blocks containing it.
- 136.112.0.0/12M&A ·
- 136.112.0.0/12Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 136.112.0.0/12 | M&A | |||
| 136.112.0.0/12 | Transfer |
Origin ASN
AS19527
GOOGLE-2 - Google LLC
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/136.121.36.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/136.121.36.0/22" | jq
External Links