Data as of Nov 10, 2026
221.133.1.0/24
No anonymizer space · no proxy exits in 30 daysSai gon Postel Corporation
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 221.133.0.0/22 since Nov 2025 | AS7602 | Residential | 1 1 always on | Sai gon Postel Corporation | |
| 221.133.0.0/20 since Jun 2016 | AS7602 | Residential | 2 1 always on | Sai gon Postel Corporation |
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 |
|---|---|---|---|---|---|---|
| 221.133.0.0/19 | 8,192 | SPT-VN | Sai gon Postel Corporation | ALLOCATED PORTABLE | — | hm-changed@ |
| └ 221.133.1.0/24 | 256 | ISPHCM-NET | ISP tai HCM | ALLOCATED NON-PORTABLE | — | hm-changed@ |
Network & registry
IPv4 market
Holder
- Organization
- Sai gon Postel Corporation
- Range
- 221.
133. 0. 0/ 19 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- ISP tai HCM
- Reallocated range
- 221.
133. 1. 0/ 24 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS7602
VN
- Name
- Sai gon Postel Corporation
- Type
- Internet provider
- Registered
- Aug 28, 2003
- Domain
- spt.vn
- Website
- www.spt.vn
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2020
- Current origin since
- Nov 2025 · 1.0 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 221.133.0.0/19 | AS7602 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS7602 | APNIC | SPT-VN | MAINT-VN-SPT | Sep 24, 2022 |
Whois
Registration for this announcement
- Range
- 221.
133. 1. 0/ 24 - Netname
- ISPHCM-NET
- Registrant
- ISP tai HCM
- Registrant country
- VN
- Organization
- ISP tai HCM
- Org country
- VN
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Oct 16, 2017
- Maintainer
- MAINT-VN-SPT
- RIR
- APNIC
- Country
- VN
- Delegated
- Aug 6, 2003
- Status
- assigned
Report abuse
Abuse contact
- hm-changed@
vnnic. vn - Name
- IRT-VNNIC-AP
- Handle
- IRT-VNNIC-AP