Data as of Nov 7, 2026
120.72.80.0/21
2 residential-proxy exits · 30 daysQuang Trung Software City Development Company · space held by Quang Trung Software City Development Company Limited
Residential-proxy exits
Proxy exits
2
0.10% of its addresses · 30 days
Spread
1 of 8
/24s with at least one exit
Providers
8
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
149 observations
Proxy providers listing exits
- Ake.net
- DataImpulse
- FloppyData
- GeekProxy
- PSBProxy
- PrivateByte
- Proxmint
- Proxy4U
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 120.72.80.0/24 since Feb 2020 | AS24085 | Internet provider | Quang Trung Software City Development Company Limited | ||
| 120.72.81.0/24 since Sep 2016 | AS24085 | Internet provider | Quang Trung Software City Development Company Limited | ||
| 120.72.82.0/24 since Nov 2017 | AS24085 | Internet provider | Quang Trung Software City Development Company Limited | ||
| 120.72.83.0/24 since Mar 2013 | AS24085 | Internet provider | 2 | Quang Trung Software City Development Company Limited | |
| 120.72.84.0/24 since Jul 2011 | AS24085 | Internet provider | Quang Trung Software City Development Company Limited | ||
| 120.72.85.0/24 since Aug 2016 | AS24085 | Internet provider | Quang Trung Software City Development Company Limited | ||
| 120.72.86.0/24 since Jan 2015 | AS24085 | Internet provider | Quang Trung Software City Development Company Limited |
Network & registry
Origin network
AS24085
VN
- Name
- Quang Trung Software City Development Company
- Type
- Internet provider
- Registered
- Jun 22, 2004
- Domain
- qtsc.com.vn
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 1
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jan 2010
- Current origin since
- Nov 2025 · 12 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 120.72.80.0/21 | AS24085 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS7552 not the origin | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Mar 22, 2017 |
| AS18403 not the origin | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Mar 22, 2017 |
| AS24085 | APNIC | QTSC-VN | MAINT-VN-QTSC | Feb 17, 2022 |
| AS24085 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
| AS24085 | NTTCOM | "Quang Trung Software City Development Company (QTSC) Viet Nam" | MAINT-VDC | Jun 18, 2010 |
| AS24085 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Mar 22, 2017 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 120.72.80.0/22 | AS24085 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 120.72.80.0/22 | AS24085 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Jul 18, 2018 |
| 120.72.80.0/22 | AS24085 | APNIC | QTSC-VN | MAINT-VN-QTSC | Feb 17, 2022 |
| 120.72.80.0/23 | AS24085 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 120.72.80.0/23 | AS24085 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Jul 18, 2018 |
| 120.72.80.0/23 | AS24085 | APNIC | QTSC-VN | MAINT-VN-QTSC | Feb 17, 2022 |
| 120.72.82.0/23 | AS24085 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 120.72.82.0/23 | AS24085 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Jul 18, 2018 |
| 120.72.82.0/23 | AS24085 | APNIC | QTSC-VN | MAINT-VN-QTSC | Feb 17, 2022 |
| 120.72.84.0/22 | AS24085 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 120.72.84.0/22 | AS24085 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Jul 18, 2018 |
| 120.72.84.0/22 | AS24085 | APNIC | QTSC-VN | MAINT-VN-QTSC | Feb 17, 2022 |
| 120.72.84.0/23 | AS24085 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 120.72.84.0/23 | AS24085 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Jul 18, 2018 |
| 120.72.84.0/23 | AS24085 | APNIC | QTSC-VN | MAINT-VN-QTSC | Feb 17, 2022 |
| 120.72.86.0/23 | AS24085 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 120.72.86.0/23 | AS24085 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Jul 18, 2018 |
| 120.72.86.0/23 | AS24085 | APNIC | QTSC-VN | MAINT-VN-QTSC | Feb 17, 2022 |
| 120.72.87.0/24 | AS24085 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 120.72.87.0/24 | AS24085 | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK | Jun 20, 2018 |
| 120.72.87.0/24 | AS18403 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Mar 22, 2017 |
| 120.72.87.0/24 | AS24085 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Mar 22, 2017 |
| 120.72.87.0/24 | AS24085 | APNIC | QTSC-VN | MAINT-VN-QTSC | Feb 17, 2022 |
Whois
Registration for this announcement
- Range
- 120.
72. 80. 0/ 21 - Netname
- QTSC-VN
- Registrant
- Quang Trung Software City Development Company Limited
- Registrant country
- VN
- Organization
- Quang Trung Software City Development Company Limited
- Org country
- VN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Dec 16, 2025
- Maintainer
- MAINT-VN-VNNIC
- RIR
- APNIC
- Country
- VN
- Delegated
- Mar 28, 2008
- Status
- assigned
Report abuse
Abuse contact
- hm-changed@
vnnic. vn - Name
- IRT-VNNIC-AP
- Handle
- IRT-VNNIC-AP