Data as of Nov 13, 2026
137.59.22.0/23
No anonymizer space · no proxy exits in 30 daysNetsec Limited
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 137.59.22.0/24 since Dec 2015 | AS45753 | Hosting | Netsec Limited | |
| 137.59.23.0/24 since Dec 2015 | AS45753 | Hosting | Netsec Limited |
Network & registry
Announced by
Covering announcement 137.59.20.0/22
- Prefix
- 137.59.20.0/22
- Announced by
- AS45753 Netsec Limited
- Type
- Hosting
- Proxy exits
- 4
- RPKI
- RPKI valid
- Netname
- NETSEC-HK
- Registrant
- Netsec Limited
- RIR
- APNIC
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
Who has announced 137.59.20.0/22
137.59.20.0/22
Routing history
- Pattern
- Stable
- First seen
- Dec 2015
- Current origin since
- Dec 2015 · 11 yr
- Origin networks
- 2
- Last change of origin
- Jul 2020
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 137.59.20.0/22 | AS963 | /24 | APNIC | Another network |
| 137.59.20.0/22 | AS9744 | /24 | APNIC | Another network |
| 137.59.20.0/22 | AS45753 | /24 | APNIC | RPKI valid |
IRR
Route objects on 137.59.20.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS963 not the origin | APNIC | Netsec Limited | MAINT-NETSEC-HK | Jun 22, 2026 |
| AS9744 not the origin | APNIC | Netsec Limited | MAINT-NETSEC-HK | Nov 29, 2021 |
| AS9744 not the origin | RADB | 137.59.20.0/22 | MAINT-AS9744 | Nov 13, 2023 |
| AS45753 | APNIC | Netsec Limited | MAINT-NETSEC-HK | Aug 10, 2021 |
| AS45753 | RADB | This is a NetSec Block. | MAINT-AS45753 | Nov 13, 2023 |
| AS45753 | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK | Apr 4, 2018 |
Whois
Registration for this announcement
- Range
- 137.
59. 20. 0/ 22 - Netname
- NETSEC-HK
- Registrant
- Netsec Limited
- Registrant country
- HK
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Mar 14, 2025
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- HK
- Delegated
- Oct 23, 2015
- Status
- assigned
Report abuse
Abuse contact
- abuse@
netsec. com - Name
- ABUSE HKNETSEC
- Handle
- AH1002-AP