204.11.8.0/21 - BGP Prefix
IPv4ARINallocated
CIDR
204.11.8.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇦 Canada
City
Montreal
RIR
ARIN
Status
allocated
Allocated
2022-09-15
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS400764 | ARIN | MNT-CC-4445 | 2026-03-18 |
Transfer History
Registry transfers of 204.11.8.0/21, blocks inside it, or blocks containing it.
- 204.11.8.0/21M&A ·
- 204.11.8.0/21Transfer ·
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/204.11.8.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.11.8.0/21" | jq
External Links