Data as of Nov 4, 2026
203.162.20.0/22
No anonymizer space · no proxy exits in 30 daysVNPT Corp · space held by Vietnam Posts and Telecommunications Group
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.162.0.0/16 since Jul 2020 | AS45899 | Residential | 4,119 60 always on | Vietnam Posts and Telecommunications Group |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 203.162.20.0/23 since Oct 2017 | AS45899 | Residential | Vietnam Posts and Telecommunications Group via VietNam Data Communication Company | |
| 203.162.22.0/23 since Oct 2017 | AS45899 | Residential | Vietnam Posts and Telecommunications Group via VietNam Data Communication Company |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 203.162.0.0/16 | 65,536 | VNPT-VN | Vietnam Posts and Telecommunications Group | ALLOCATED PORTABLE | — | [email protected] |
| └ 203.162.16.0/20 | 4,096 | VDC-NET | VietNam Data Communication Company | ALLOCATED NON-PORTABLE | — | [email protected] via VNPT-VN |
| └ 203.162.20.16/28 | 16 | ADTRANZ-NET | Adtranz company | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.32/28 | 16 | VTV-NET | Vietnam Televisions radio | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.48/28 | 16 | VPS-NET | VPS company | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.64/28 | 16 | CDIT | Centre for development of information technology | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.80/28 | 16 | GPC-NET | Cong ty Dich vu Vien Thong GPC | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.112/28 | 16 | TTDHVT-NET | Trung tam Dieu hanh Vien thong | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.128/28 | 16 | CDIT | Centre for development of information technology | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.144/28 | 16 | cucdangkiem-net | Cuc dang kiem Viet Nam | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.160/28 | 16 | vitcoltd-net | Vietnam IT Co LTD | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.176/28 | 16 | oxfamgb-net | Oxfam Anh | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.192/28 | 16 | unisys-net | Unisys Viet Nam | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.208/28 | 16 | bdtw-net | Cuc Buu dien Trung uong | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.20.224/28 | 16 | quocbao-net | Quoc Bao Co LTD | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.21.32/27 | 32 | VASC-NET | Vietnam Advance Software Company | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.21.64 - 203.162.21.93 | 30 | VISTRA-NET | National Centre For Sciencific and Technological | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.21.96/27 | 32 | VMS-NET | Vietnam Mobile System | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.21.160 - 203.162.21.213 | 54 | GPC-NET | Cong ty Dich vu Vien Thong GPC | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.21.224/27 | 32 | VMS-NET | VietNam Mobile Services Company | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.23.192/26 | 64 | GPC-NET | Cong ty Dich vu Vien Thong GPC | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
1,024 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 572 | 56% | 7 | |
| Business | 452 | 44% | 19 |
Network & registry
Announced by
Covering announcement 203.162.16.0/21
- Prefix
- 203.162.16.0/21
- Announced by
- AS45899 VNPT Corp
- Type
- Residential
- Proxy exits
- 61
- RPKI
- RPKI valid
- Netname
- VDC-NET
- Registrant
- VietNam Data Communication Company
- RIR
- APNIC
IPv4 market
Holder
- Organization
- Vietnam Posts and Telecommunications Group
- Range
- 203.162.0.0/16
- Registration type
- ALLOCATED PORTABLE
- Reallocated to
- VietNam Data Communication Company
- Reallocated range
- 203.162.16.0/20
- Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS45899
VN
- Name
- VNPT Corp
- Type
- Internet provider
- Registered
- Aug 28, 2009
- Domain
- vnpt.vn
- Website
- www.vnpt.vn
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 6
Routing timeline
Covering aggregate above, the prefix's own history below
203.162.16.0/21
Routing history
- Pattern
- Stable
- First seen
- Aug 2016
- Current origin since
- Aug 2016 · 10 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.162.16.0/20 | AS45899 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 203.162.16.0/20
- Netname
- VDC-NET
- Registrant
- VietNam Data Communication Company
- Registrant country
- VN
- Organization
- VietNam Data Communication Company
- Org country
- VN
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Mar 25, 2009
- Maintainer
- MAINT-VN-VNPT
- RIR
- APNIC
- Country
- VN
- Delegated
- Nov 23, 1998
- Status
- assigned