Data as of Nov 9, 2026
137.59.21.0/24
4 residential-proxy exits · 30 daysNetsec Limited
Residential-proxy exits
Proxy exits
4
1.6% of its addresses · 30 days
Providers
26
selling exits here
Oct 10, 2026 – Nov 8, 2026
Exits seen per day
326 observations
Proxy providers listing exits
- 2Captcha
- 911Proxy
- BestProxy
- BirdProxies
- BottingTools
- ByteProxies
- Byteful
- EZProxies
- GonzoProxy
- IPOasis
- Infatica
- MangoProxy
- NSocks
- NiuProxy
- Oxylabs
- Proxy-Seller
- ProxyEmpire
- Proxyma
- PuraRoute
- RainProxy
- RapidProxy
- RoamProxy
- Shifter
- Smartproxy
- Thordata
- ZENPROXY_PREMIUM
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 137.59.20.0/22 since Dec 2015 | AS45753 | Hosting | 4 | Netsec Limited |
Network & registry
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
- Stable
- First seen
- Dec 2015
- Current origin since
- Dec 2015 · 11 yr
- Origin networks
- 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 the exact prefix
| 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 |
| AS45753 | APNIC | Network and Security Solutions Limited | MAINT-NETSEC-HK | Aug 10, 2020 |
| AS45753 | RADB | 137.59.21.0/24 | MAINT-AS45753 | Nov 13, 2023 |
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