Data as of Nov 14, 2026
191.124.104.0/21
No anonymizer space · no proxy exits in 30 daysArosscloud Inc. · space held by Fastmos Co., Limited
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Recent change
New origin Jul 2026
its first announcement on record
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | RPKI |
|---|---|---|---|
| 191.124.104.0/24 since Nov 14, 2026 | AS400619 | Hosting | |
| 191.124.105.0/24 since Nov 14, 2026 | AS400619 | Hosting |
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 |
|---|---|---|---|---|---|---|
| 191.124.0.0/16 | 65,536 | FASTMOS2-HK | Fastmos Co., Limited (ORG-FCL17-AP) · HK | ALLOCATED PORTABLE | — | support@ |
| └ 191.124.104.0/21 | 2,048 | FASTMOS2-HK | Fastmos Co., Limited | ASSIGNED NON-PORTABLE | — | support@ |
Network & registry
IPv4 market
Holder
- Organization
- Fastmos Co., Limited
- Handle
- ORG-FCL17-AP
- Range
- 191.
124. 0. 0/ 16 - Registration type
- ALLOCATED PORTABLE
Origin network
AS400619
US
- Name
- Arosscloud Inc.
- Type
- Hosting
- Registered
- Apr 11, 2022
- Domain
- arosscloud.com
- Website
- www.arosscloud.com/
- Industry
- Hosting, Cloud Provider, Data Center, Server Colocation
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jul 2026
- Current origin since
- Jul 2026 · 4 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 191.124.104.0/21 | AS400619 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 191.
124. 104. 0/ 21 - Netname
- FASTMOS2-HK
- Registrant
- Fastmos Co., Limited
- Registrant country
- HK
- Organization
- Fastmos Co., Limited
- Org country
- HK
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Sep 8, 2026
- Maintainer
- MAINT-FASTMOS2-HK
- RIR
- APNIC
- Country
- HK
- Delegated
- Oct 9, 2013
- Status
- assigned
Report abuse
Abuse contact
- support@
fastmos. com - Name
- ABUSE FASTMOS2HK1
- Handle
- AF933-AP