Data as of Nov 10, 2026
175.41.18.0/24
No anonymizer space · no proxy exits in 30 daysNetsec Limited · space held by HostCrest Limited
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 175.41.16.0/20 | AS963 | Unknown | 11 | HostCrest 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 |
|---|---|---|---|---|---|---|
| 175.41.16.0/20 | 4,096 | HOSTCREST-HK | HostCrest Limited (ORG-HL12-AP) · HK | ALLOCATED PORTABLE | — | ipadmin@ |
| └ 175. | 3,584 | Netsec | Netsec | ALLOCATED NON-PORTABLE | — | noc@ |
| └ 175.41.18.0/24 | 256 | Netsec | Netsec | ALLOCATED NON-PORTABLE | — | ipadmin@ |
Network & registry
Registry
Holder
- Organization
- HostCrest Limited
- Handle
- ORG-HL12-AP
- Range
- 175.
41. 16. 0/ 20 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- Netsec
- Reallocated range
- 175.
41. 18. 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 2012
- Current origin since
- Aug 2024 · 2.2 yr
- Origin networks
- 2
- Last change of origin
- Aug 2024
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 175.41.16.0/20 | AS963 | /24 | APNIC | Another network |
| 175.41.16.0/20 | AS9744 | /24 | APNIC | Another network |
| 175.41.16.0/20 | AS45753 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 175.
41. 18. 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 16, 2025
- Maintainer
- MAINT-HOSTCREST-HK
- RIR
- APNIC
- Country
- HK
- Delegated
- Dec 15, 2009
- Status
- assigned
Report abuse
Abuse contact
- ipadmin@
hostcrest. com - Name
- ABUSE HOSTCRESTHK
- Handle
- AH815-AP