Data as of Nov 10, 2026
157.250.78.0/24
No anonymizer space · no proxy exits in 30 daysARTERIA Networks Corporation · space held by WorkUP Inc.
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 157.250.64.0/18 | 16,384 | WORKUP-JP | WorkUP Inc. (ORG-GNCL1-AP) · JP | ALLOCATED PORTABLE | — | abuse@ |
| └ 157.250.72.0/21 | 2,048 | GRNT-JP | WorkUP Inc. (ORG-GNCL1-AP) · JP | ALLOCATED PORTABLE | — | abuse@ |
| └ 157.250.78.0/24 | 256 | GREENNET | Green Net Co., Ltd. | ALLOCATED NON-PORTABLE | — | abuse@ |
Network & registry
Announced by
Covering announcement 157.250.72.0/21
- Prefix
- 157.250.72.0/21
- Announced by
- AS2519 ARTERIA Networks Corporation
- Type
- Business
- Proxy exits
- 1
- RPKI
- No RPKI
- Netname
- GRNT-JP
- Registrant
- WorkUP Inc.
- RIR
- APNIC
Registry
Holder
- Organization
- WorkUP Inc.
- Handle
- ORG-GNCL1-AP
- Range
- 157.
250. 64. 0/ 18 - Registration type
- ALLOCATED PORTABLE
Origin network
AS2519
JP
- Name
- ARTERIA Networks Corporation
- Type
- Internet provider
- Registered
- Apr 5, 2002
- Domain
- arteria-net.com
- Website
- www.arteria-net.com/en/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 157.250.72.0/21
157.250.72.0/21
Routing history
- Pattern
- Stable
- First seen
- Feb 2013
- Current origin since
- Feb 2013 · 14 yr
- Origin networks
- 1
IRR
Route objects on 157.250.72.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS2519 | RADB | Green Net Co. Ltd. | MAINT-AS2519 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 157.
250. 72. 0/ 21 - Netname
- GRNT-JP
- Registrant
- WorkUP Inc.
- Registrant country
- JP
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- May 20, 2020
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- JP
- Delegated
- Feb 7, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
grnt. ne. jp - Name
- ABUSE GRNTJP
- Handle
- AG721-AP