210.48.136.0/21 - China Telecom Next Generation Carrier Network (AS4809)
IPv4APNICallocatedAS4809CHINATELECOM-CORE-WAN-CN2 - China Telecom Next Generation Carrier Network RPKI Valid
CIDR
210.48.136.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇭🇰 Hong Kong
RIR
APNIC
Status
allocated
Allocated
2011-04-14
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 210.48.136.0/21 | AS4809 CHINATELECOM-CORE-WAN-CN2 - China Telecom Next Generation Carrier Network | Valid | APNICOther IRR | 2026-10-12 |
More-Specific Announcements
3 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 210.48.136.0/22 | AS23764 CTGNet - CTGNet | Valid | - | 2026-10-12 |
| 210.48.140.0/22 | AS23764 CTGNet - CTGNet | Valid | - | 2026-10-12 |
| 210.48.143.0/24 | AS23764 CTGNet - CTGNet | Valid | - | 2026-10-12 |
RPKI ROAs
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 210.48.136.0/22 | AS23764 | 🇭🇰HK | assigned |
| 210.48.140.0/22 | AS23764 | 🇭🇰HK | assigned |
Related Prefixes
More prefixes of AS4809
All prefixes of AS4809 →Geolocation
Country🇭🇰Hong KongHK
Coordinates22.3964, 114.1095 ↗
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 APNIC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/210.48.136.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/210.48.136.0/21" | jq
External Links