203.77.0.0/18 - UBBNET TW UNION BROADBAND NETWORK (AS24164)
CIDR
203.77.0.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇹🇼 Taiwan
City
Taipei
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.77.0.0/18 | AS24164 UBBNET-AS-TW UNION BROADBAND NETWORK | Valid | Other IRR | 2026-10-11 |
More-Specific Announcements
15 more-specific announcementsMore Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 203.77.0.0/22 | 🇹🇼TW | allocated | |
| 203.77.4.0/22 | 🇹🇼TW | allocated | |
| 203.77.8.0/21 | 🇹🇼TW | allocated | |
| 203.77.12.0/24 | 🇹🇼TW | assigned | |
| 203.77.16.0/20 | 🇹🇼TW | allocated | |
| 203.77.32.0/20 | AS24164 | 🇹🇼TW | allocated |
| 203.77.48.0/20 | AS24164 | 🇹🇼TW | allocated |
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 APNIC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/203.77.0.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.77.0.0/18" | jq
External Links