Data as of Nov 12, 2026
101.0.28.0/24
No anonymizer space · no proxy exits in 30 daysDC Communications Inc. · space held by Double Cast Inc.
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 |
|---|---|---|---|---|---|---|
| 101.0.16.0/20 | 4,096 | W-CAST-2-AS-AP | Double Cast Inc. (ORG-DCI2-AP) · JP | ALLOCATED PORTABLE | — | ipadmin@ |
| └ 101.0.28.0/24 | 256 | DCCOM01 | DCCOM01 | ASSIGNED NON-PORTABLE | — | ipadmin@ |
Network & registry
IPv4 market
Holder
- Organization
- Double Cast Inc.
- Handle
- ORG-DCI2-AP
- Range
- 101.
0. 16. 0/ 20 - Registration type
- ALLOCATED PORTABLE
Origin network
AS139468
JP
- Name
- DC Communications Inc.
- Type
- Business
- Registered
- Aug 1, 2019
- Domain
- dc-communications.jp
- Website
- dc-communications.jp
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2011
- Current origin since
- Jul 2020 · 6.4 yr
- Origin networks
- 3
- Last change of origin
- Jul 2020
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 101.0.28.0/24 | AS139468 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 101.
0. 28. 0/ 24 - Netname
- DCCOM01
- Registrant
- DCCOM01
- Registrant country
- JP
- Organization
- DCCOM01
- Org country
- JP
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Jan 27, 2021
- Maintainer
- MAINT-JP-DOUBLECAST
- RIR
- APNIC
- Country
- JP
- Delegated
- Dec 9, 2010
- Status
- assigned
Report abuse
Abuse contact
- ipadmin@
m-idc. jp - Name
- ABUSE WCAST2JP
- Handle
- AW972-AP