188.221.208.0/23 - BGP Prefix
IPv4RIPEassigned RPKI Valid
CIDR
188.221.208.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇯🇵 Japan
City
Tokyo
RIR
RIPE
Status
assigned
Allocated
-
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below. | ||||
More-Specific Announcements
3 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 188.221.208.0/24 | AS10753 LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE - Level 3 Parent, LLC | Valid | - | 2026-10-12 |
| 188.221.209.0/24 | AS10753 LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE - Level 3 Parent, LLC | Valid | - | 2026-10-12 |
| 188.221.209.0/24 | AS215152 ORG-CUL21-RIPE CATERING UK LIMITED | Invalid | - | 2026-10-12 |
Transfer History
Registry transfers of 188.221.208.0/23, blocks inside it, or blocks containing it.
- 188.220.0.0/14Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 188.220.0.0/14 | Telefonica UK Limited | British Sky Broadcasting Limited | Transfer |
Geolocation
Country🇯🇵JapanJP
CityTokyo
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 transfer marketTransfers published by all five RIRs
API
Open https://api.ipctl.io/v1/prefix/188.221.208.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/188.221.208.0/23" | jq
External Links