157.250.128.0/17 - BGP Prefix
IPv4not announced RPKI Valid
CIDR
157.250.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇯🇵 Japan
City
Osaka
Status
not announced
Allocated
-
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
Swipe sideways to see all columns →
| 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
9 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 157.250.160.0/20 | AS3342 Cibicom-IP-Network Cibicom A/S | Valid | - | 2026-10-12 |
| 157.250.192.0/20 | AS19318 IS-AS-1 - Interserver, Inc | No ROA | - | 2026-10-12 |
| 157.250.194.0/23 | AS26666 INTERSERVER-LAX - Interserver, Inc | No ROA | - | 2026-10-12 |
| 157.250.200.0/22 | AS26666 INTERSERVER-LAX - Interserver, Inc | No ROA | - | 2026-10-12 |
| 157.250.206.0/23 | AS26666 INTERSERVER-LAX - Interserver, Inc | No ROA | - | 2026-10-12 |
| 157.250.224.0/20 | AS7672 FITWEB - Hokuden Information System Service Co.,Ltd. | Valid | - | 2026-10-12 |
| 157.250.240.0/20 | AS58650 CATVWINK - Warabi Cable Vision Co., Ltd. | Valid | - | 2026-10-12 |
| 157.250.240.0/21 | AS58650 CATVWINK - Warabi Cable Vision Co., Ltd. | Valid | - | 2026-10-12 |
| 157.250.248.0/21 | AS58650 CATVWINK - Warabi Cable Vision Co., Ltd. | Valid | - | 2026-10-12 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 157.250.128.0/19 | 🇯🇵JP | allocated | |
| 157.250.160.0/20 | AS3342 | 🇩🇰DK | allocated |
| 157.250.160.0/22 | 🇩🇰DK | assigned | |
| 157.250.160.0/25 | 🇩🇰DK | assigned | |
| 157.250.160.160/28 | 🇩🇰DK | assigned | |
| 157.250.160.176/28 | 🇩🇰DK | assigned | |
| 157.250.160.192/28 | 🇩🇰DK | assigned | |
| 157.250.161.128/27 | 🇩🇰DK | assigned | |
| 157.250.161.192/27 | 🇩🇰DK | assigned | |
| 157.250.161.224/27 | 🇩🇰DK | assigned | |
| 157.250.162.128/32 | 🇩🇰DK | assigned | |
| 157.250.162.144/32 | 🇩🇰DK | assigned | |
| 157.250.162.160/27 | 🇩🇰DK | assigned | |
| 157.250.162.192/27 | 🇩🇰DK | assigned | |
| 157.250.163.0/25 | 🇩🇰DK | assigned | |
| 157.250.163.128/28 | 🇩🇰DK | assigned | |
| 157.250.163.192/28 | 🇩🇰DK | assigned | |
| 157.250.164.0/22 | 🇩🇰DK | assigned | |
| 157.250.168.0/22 | 🇩🇰DK | assigned | |
| 157.250.172.0/22 | 🇩🇰DK | assigned | |
| 157.250.176.0/20 | 🇯🇵JP | allocated | |
| 157.250.176.0/21 | AS132024 | 🇯🇵JP | assigned |
| 157.250.184.0/21 | AS132024 | 🇯🇵JP | assigned |
| 157.250.192.0/20 | AS19318 | 🇺🇸US | allocated |
| 157.250.208.0/20 | 🇯🇵JP | allocated | |
| 157.250.208.0/21 | 🇯🇵JP | assigned | |
| 157.250.216.0/21 | 🇯🇵JP | assigned | |
| 157.250.224.0/20 | AS7672 | 🇯🇵JP | allocated |
| 157.250.240.0/20 | AS58650 | 🇯🇵JP | allocated |
Transfer History
Registry transfers of 157.250.128.0/17, blocks inside it, or blocks containing it.
- 157.250.176.0/20Transfer ·
- 157.250.128.0/19Transfer ·
- 157.250.192.0/20inter-RIRTransfer ·
- 157.250.160.0/20inter-RIRTransfer ·
- 157.250.208.0/20Transfer ·
- 157.250.224.0/20Transfer ·
- 157.250.240.0/20Transfer ·
- 157.250.128.0/17inter-RIRTransfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 157.250.176.0/20 | Transfer | |||
| 157.250.128.0/19 | Transfer | |||
| 157.250.192.0/20inter-RIR | Transfer | |||
| 157.250.160.0/20inter-RIR | Cibicom A/S | Transfer | ||
| 157.250.208.0/20 | Transfer | |||
| 157.250.224.0/20 | Transfer | |||
| 157.250.240.0/20 | Transfer | |||
| 157.250.128.0/17inter-RIR | ArbellaMutualIns | Transfer |
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 transfer marketTransfers published by all five RIRs
API
Open https://api.ipctl.io/v1/prefix/157.250.128.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/157.250.128.0/17" | jq
External Links