66.17.72.0/21 - ASN TELSTRA GLOBAL Telstra Global (AS4637)
CIDR
66.17.72.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇭🇰 Hong Kong
City
Hong Kong
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.17.72.0/21 | AS4637 ASN-TELSTRA-GLOBAL Telstra Global | Valid | ARIN | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 66.17.72.0/21 | AS3320 | /24 | arin |
| 66.17.72.0/21 | AS4637 | /24 | arin |
| 66.17.72.0/21 | AS6079 | /24 | arin |
| 66.17.72.0/21 | AS6762 | /21 | arin |
| 66.17.72.0/21 | AS7029 | /24 | arin |
| 66.17.72.0/21 | AS8881 | /24 | arin |
| 66.17.72.0/21 | AS11404 | /24 | arin |
| 66.17.72.0/21 | AS20115 | /24 | arin |
| 66.17.72.0/21 | AS211936 | /24 | arin |
| 66.17.72.0/21 | AS398465 | /24 | arin |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS3320 | ARIN | MNT-GAL-104 | 2025-11-25 |
| AS4637 | ARIN | MNT-GAL-104 | 2025-11-27 |
| AS6079 | ARIN | MNT-GAL-104 | 2025-11-25 |
| AS6762 | ARIN | MNT-GAL-104 | 2025-11-25 |
| AS8881 | ARIN | MNT-GAL-104 | 2025-11-25 |
| AS211936 | ARIN | MNT-GAL-104 | 2025-11-25 |
| AS7029 | ARIN | MNT-GAL-104 | 2025-11-25 |
| AS11404 | ARIN | MNT-GAL-104 | 2025-11-25 |
| AS20115 | ARIN | MNT-GAL-104 | 2025-11-25 |
| AS398465 | ARIN | MNT-GAL-104 | 2025-11-25 |
Transfer History
Registry transfers of 66.17.72.0/21, blocks inside it, or blocks containing it.
- 66.17.64.0/20M&A ·
- 66.17.64.0/20M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 66.17.64.0/20 | M&A | |||
| 66.17.64.0/20 | M&A |
Origin ASN
AS4637
ASN-TELSTRA-GLOBAL Telstra Global
Related Prefixes
More prefixes of AS4637
All prefixes of AS4637 →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/66.17.72.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/66.17.72.0/21" | jq
External Links