Data as of Nov 13, 2026
61.205.80.0/20
No anonymizer space · no proxy exits in 30 daysOPTAGE Inc. · space held by Japan Network Information Center
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 61. | 1,048,576 | JPNIC-NET-JP | Japan Network Information Center | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
IPv4 market
Holder
- Organization
- Japan Network Information Center
- Range
- 61.
200. 0. 0 - 61. 215. 255. 255 - Registration type
- ALLOCATED PORTABLE
Origin network
AS17511
JP
- Name
- OPTAGE Inc.
- Type
- Internet provider
- Registered
- Dec 12, 2000
- Domain
- optage.co.jp
- Website
- optage.co.jp/en/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 61.
205. 80. 0/ 20 - Netname
- K-Opticom-CIDR-BLK-JP
- Registrant
- OPTAGE Inc.
- Registrant country
- JP
- Organization
- OPTAGE Inc.
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Sep 19, 2019
- RIR
- APNIC
- Country
- JP
- Delegated
- Jan 30, 2001
- Status
- assigned
Report abuse
Abuse contact
- abuse@
optage. co. jp