203.29.54.0/23 - CLOUDFLARESPECTRUM Cloudflare London (AS209242)
CIDR
203.29.54.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇸🇬 Singapore
City
Singapore
RIR
RIPE NCC
Status
allocated
Allocated
1996-07-09
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.29.54.0/23 | AS209242 CLOUDFLARESPECTRUM Cloudflare London, LLC | No ROA | RIPE | 2026-10-12 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS209242 | RIPE | mnt-bz-umpire-1 | 2020-02-13 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 203.29.54.0/24 | 🇿🇿ZZ | assigned | |
| 203.29.55.0/24 | 🇿🇿ZZ | assigned |
Transfer History
Registry transfers of 203.29.54.0/23, blocks inside it, or blocks containing it.
- 203.29.55.0/24inter-RIRTransfer ·
- 203.29.54.0/24inter-RIRTransfer ·
- 203.29.54.0/23inter-RIRTransfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 203.29.55.0/24inter-RIR | ORG-UAL2-RIPE | Transfer | ||
| 203.29.54.0/24inter-RIR | ORG-UAL2-RIPE | Transfer | ||
| 203.29.54.0/23inter-RIR | not published | UMPIRE ASSOCIATES LTD | Transfer |
Related Prefixes
More prefixes of AS209242
All prefixes of AS209242 →Geolocation
Abuse Contact
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/203.29.54.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.29.54.0/23" | jq
External Links