Data as of Nov 15, 2026
103.203.48.0/24
No anonymizer space · no proxy exits in 30 daysNetsec Limited · space held by Cyber Will Limited
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 103.203.48.0/23 since Mar 2025 | AS45753 | Hosting | Cyber Will Limited | |
| 103.203.48.0/22 | AS963 | Unknown | Cyber Will Limited |
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 |
|---|---|---|---|---|---|---|
| 103.203.48.0/22 | 1,024 | CYBERWILLLIMITED-HK | Cyber Will Limited (ORG-CWL2-AP) · HK | ALLOCATED PORTABLE | — | noc@ |
| └ 103.203.48.0/24 | 256 | Netsec | Netsec | ALLOCATED NON-PORTABLE | — | noc@ |
Network & registry
Registry
Holder
- Organization
- Cyber Will Limited
- Handle
- ORG-CWL2-AP
- Range
- 103.
203. 48. 0/ 22 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- Netsec
- Reallocated range
- 103.
203. 48. 0/ 24 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS45753
HK
- Name
- Netsec Limited
- Type
- Hosting
- Registered
- Jun 29, 2011
- Domain
- simcentric.com
- Website
- www.simcentric.com/en/
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Aug 2016
- Current origin since
- Aug 2024 · 2.3 yr
- Origin networks
- 2
- Last change of origin
- Sep 2022
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 103.203.48.0/22 | AS963 | /24 | APNIC | Another network |
| 103.203.48.0/22 | AS9744 | /24 | APNIC | Another network |
| 103.203.48.0/22 | AS45753 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS963 not the origin | APNIC | Cyber Will Limited | MAINT-CYBERWILLLIMITED-HK | Mar 13, 2025 |
| AS9744 not the origin | APNIC | Cyber Will Limited | MAINT-CYBERWILLLIMITED-HK | Nov 16, 2021 |
| AS45753 | APNIC | Cyber Will Limited | MAINT-CYBERWILLLIMITED-HK | Oct 19, 2021 |
| AS45753 | RADB | 103.203.48.0/24 | MAINT-AS45753 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 103.
203. 48. 0/ 24 - Netname
- Netsec
- Registrant
- Netsec
- Registrant country
- HK
- Organization
- Netsec
- Org country
- HK
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- May 17, 2025
- Maintainer
- MAINT-CYBERWILLLIMITED-HK
- RIR
- APNIC
- Country
- HK
- Delegated
- Nov 27, 2015
- Status
- assigned
Report abuse
Abuse contact
- noc@
netsec. com - Name
- NETSEC NOC
- Handle
- NN541-AP