Data as of Nov 8, 2026
211.19.208.0/20
No anonymizer space · no proxy exits in 30 daysJCOM Co., Ltd. · space held by Japan Network Information Center
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 211.19.208.0/21 since Aug 2016 | AS4721 | Residential | Japan Network Information Center | |
| 211.19.216.0/21 since Aug 2016 | AS4721 | Residential | 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 |
|---|---|---|---|---|---|---|
| 211. | 786,432 | JPNIC-NET-JP | Japan Network Information Center | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
IPv4 market
Holder
- Organization
- Japan Network Information Center
- Range
- 211.
8. 0. 0 - 211. 19. 255. 255 - Registration type
- ALLOCATED PORTABLE
Origin network
AS4721
JP
- Name
- JCOM Co., Ltd.
- Type
- Internet provider
- Registered
- Aug 30, 1995
- Domain
- jcom.co.jp
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Aug 2016 · 10 yr
- Origin networks
- 1
RPKI
Route origin authorizations
Whois
Registration for this announcement
- Range
- 211.
19. 208. 0/ 20 - Netname
- JCN-CIDR-BLK-JP
- Registrant
- JCOM Co., Ltd.
- Registrant country
- JP
- Organization
- JCOM Co., Ltd.
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Sep 27, 2021
- RIR
- APNIC
- Country
- JP
- Delegated
- Nov 22, 1999
- Status
- assigned
Report abuse
Abuse contact
- abuse@
home. ne. jp