172.97.80.0/20 - GLBB JP GLBB Japan KK (AS55900)
CIDR
172.97.80.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
allocated
Allocated
2015-06-15
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 172.97.80.0/20 | AS55900 GLBB-JP GLBB Japan KK | Valid | Other IRR | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 172.97.80.0/20 | AS55900 | /24 | apnic |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS55900 | Other IRR | MAINT-AS55900 | 2026-07-09 |
Transfer History
Registry transfers of 172.97.80.0/20, blocks inside it, or blocks containing it.
- 172.97.80.0/20inter-RIRTransfer ·
- 172.97.80.0/20M&A ·
- 172.97.80.0/20M&A ·
Origin ASN
AS55900
GLBB-JP GLBB Japan KK
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/172.97.80.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/172.97.80.0/20" | jq
External Links