Data as of Nov 4, 2026
203.162.40.0/23
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 |
|---|---|---|---|---|---|
| 203.162.40.0/21 since Oct 2017 | AS45899 | Residential | 135 2 always on | Vietnam Posts and Telecommunications Group via VietNam Data Communication Company | |
| 203.162.0.0/16 since Jul 2020 | AS45899 | Residential | 4,119 60 always on | Vietnam Posts and Telecommunications Group |
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 |
|---|---|---|---|---|---|---|
| 203.162.0.0/16 | 65,536 | VNPT-VN | Vietnam Posts and Telecommunications Group | ALLOCATED PORTABLE | — | [email protected] |
| └ 203.162.32.0/20 | 4,096 | VDC-NET | VietNam Data Communication Company | ALLOCATED NON-PORTABLE | — | [email protected] via VNPT-VN |
| └ 203.162.41.8 - 203.162.41.23 | 16 | JWT-NET | Water Thomspon | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.40/29 | 8 | SONY-NET | SONY Vietnam | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.56/29 | 8 | COMPUTECH-NET | Thanh Dat Computech | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.64/29 | 8 | CHINFONMANULIFE-NET | Chinfon Manulife | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.80/29 | 8 | supplybase-net | Xi nghiep cang dich vu Dau Khi Supply Base | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.88/29 | 8 | TRIUMPH-NET | Triumph International | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.96/29 | 8 | LOWE-NET | Lowe Co. Ltd | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.104/29 | 8 | KPMG-NET | KPMG Company | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.128/29 | 8 | BCGHCMC-NET | British Embassy | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.136/29 | 8 | NVHTN-NET | Nha Van Hoa Thanh Nien | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.144/28 | 16 | CHINFONMANULIFE-NET | Chinfon Manulife | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.160/29 | 8 | CTU-NET | Can Tho University | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.168/29 | 8 | JWT-NET | Water Thomspon | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.184/29 | 8 | giliette-net | VPDD Cong ty Giliette Management SEA | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.192/29 | 8 | VPKT-NET | VPKT va van hoa Dai Bac | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.200/29 | 8 | CLJOC-NET | Cong ty kinh doanh Dieu hanh Cuu long | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.208/29 | 8 | PSV-NET | Pragon Solution PSV | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.216/29 | 8 | PROCONCO-NET | Vietnam Proconco | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.224/29 | 8 | VMS-NET | Vietnam Moble System II | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.232/29 | 8 | VASC-NET | Vietnam Advance Software Company | ASSIGNED NON-PORTABLE | — | [email protected] via VDC-NET |
| └ 203.162.41.240/29 | 8 | VIETSOV-NET | Xi nghiep lien Doanh Vietsovpetro | 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
512 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 328 | 64% | 7 | |
| Business | 184 | 36% | 21 |
Network & registry
Registry
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
- 203.162.32.0/20
- 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
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2014
- Current origin since
- Oct 2017 · 9.1 yr
- Origin networks
- 2
- Last change of origin
- Jul 2017
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.162.40.0/21 | AS45899 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 203.162.40.0/24 | AS45899 | RADB | VNPT-Net | MAINT-AS45899 | Nov 13, 2023 |
| 203.162.40.0/24 | AS45899 | APNIC | VNPT | MAINT-VN-VNPT | Jul 29, 2022 |
| 203.162.41.0/24 | AS45899 | RADB | VNPT-Net | MAINT-AS45899 | Nov 13, 2023 |
| 203.162.41.0/24 | AS45899 | APNIC | VNPT | MAINT-VN-VNPT | Jul 29, 2022 |
Whois
Registration for this announcement
- Range
- 203.162.32.0/20
- 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